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K Kaviyarasu - One of the best experts on this subject based on the ideXlab platform.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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synthesis and characterization studies of mgo cuo nanocrystals by wet Chemical Method
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015Co-Authors: K Kaviyarasu, E Manikandan, Maria C Magdalane, Krishnan Anand, M MaazaAbstract:Abstract In this report, we examine the progress in adapting these nanomaterials for several predominantly photonics device fabrication by wet-Chemical Method. Nanocomposite of magnesium oxide (MgO) with copper oxide (CuO) doped nanoparticles were characterized by X-ray powder diffraction (XRD) and the observed peaks are quite agreeable with the pure phase cubic structure. High-resolution transmission electron microscopic (HR-TEM) results reveal that the resultant nanopowders are porous and agglomerated with polycrystalline nano-entities. Field emission of selected-area electron diffraction (SAED) studies showed that the average size of the nanoparticles were 20 nm. Photoluminescence spectra of MgO:CuO were investigated, showing emission peaks around 375 nm relating to new energy levels induced by defects or defect levels generation and confocal micro-Raman images indicated that the Chemical molecular vibrational band structure and morphology of the product which is spherical shaped nanoparticles with an average particle size of ∼25 nm with standard deviation. The electroChemical response of MgO:CuO which is proves that the nano-copper/magnesium has high functionality due to the small size and it has higher electroChemical activity without any modifications.
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synthesis of mg doped tio2 nanocrystals prepared by wet Chemical Method optical and microscopic studies
International Journal of Nanoscience, 2013Co-Authors: K Kaviyarasu, D Premanand, J Kennedy, E ManikandanAbstract:In this work, we report the successful formation of MgO doped TiO2 nanocrystals (NCs) by simple wet-Chemical Method. The XRD exhibits a marginal decrease in the crystalline size of TiO2 nanosamples by the addition of MgO dopant. UV–Vis spectral analysis shows that the addition of MgO in TiO2 resulted in the red shift of the absorption edge. The optical energy band-gap and molecular vibrational analysis of doped nanosample was ascertained from photoluminescence (PL) and micro-Raman scattering technique respectively. HR-TEM analysis reveals that the substitution has sharply reduced the particle size of TiO2NCs.
Maria C Magdalane - One of the best experts on this subject based on the ideXlab platform.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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synthesis and characterization studies of mgo cuo nanocrystals by wet Chemical Method
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2015Co-Authors: K Kaviyarasu, E Manikandan, Maria C Magdalane, Krishnan Anand, M MaazaAbstract:Abstract In this report, we examine the progress in adapting these nanomaterials for several predominantly photonics device fabrication by wet-Chemical Method. Nanocomposite of magnesium oxide (MgO) with copper oxide (CuO) doped nanoparticles were characterized by X-ray powder diffraction (XRD) and the observed peaks are quite agreeable with the pure phase cubic structure. High-resolution transmission electron microscopic (HR-TEM) results reveal that the resultant nanopowders are porous and agglomerated with polycrystalline nano-entities. Field emission of selected-area electron diffraction (SAED) studies showed that the average size of the nanoparticles were 20 nm. Photoluminescence spectra of MgO:CuO were investigated, showing emission peaks around 375 nm relating to new energy levels induced by defects or defect levels generation and confocal micro-Raman images indicated that the Chemical molecular vibrational band structure and morphology of the product which is spherical shaped nanoparticles with an average particle size of ∼25 nm with standard deviation. The electroChemical response of MgO:CuO which is proves that the nano-copper/magnesium has high functionality due to the small size and it has higher electroChemical activity without any modifications.
J Kennedy - One of the best experts on this subject based on the ideXlab platform.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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synthesis of mg doped tio2 nanocrystals prepared by wet Chemical Method optical and microscopic studies
International Journal of Nanoscience, 2013Co-Authors: K Kaviyarasu, D Premanand, J Kennedy, E ManikandanAbstract:In this work, we report the successful formation of MgO doped TiO2 nanocrystals (NCs) by simple wet-Chemical Method. The XRD exhibits a marginal decrease in the crystalline size of TiO2 nanosamples by the addition of MgO dopant. UV–Vis spectral analysis shows that the addition of MgO in TiO2 resulted in the red shift of the absorption edge. The optical energy band-gap and molecular vibrational analysis of doped nanosample was ascertained from photoluminescence (PL) and micro-Raman scattering technique respectively. HR-TEM analysis reveals that the substitution has sharply reduced the particle size of TiO2NCs.
A Ayeshamariam - One of the best experts on this subject based on the ideXlab platform.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
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in vitro cytotoxicity effect and antibacterial performance of human lung epithelial cells a549 activity of zinc oxide doped tio2 nanocrystals investigation of bio medical application by Chemical Method
Materials Science and Engineering: C, 2017Co-Authors: K Kaviyarasu, Maria C Magdalane, N Geetha, K Kanimozhi, S Sivaranjani, A Ayeshamariam, J KennedyAbstract:Abstract We report the synthesis of high quality ZnO doped TiO 2 nanocrystals by Chemical Method at room temperature (RT), it can cause serious oxidative stress and DNA damage to human lung epithelial cells (A549) lines. Our aim in this study, to reduce the cytotoxicity effect of ZnO doped TiO 2 nanocrystals are widely in biological fields. Several studies have been performed to understand the influence of ZnO doped titanium dioxide (TiO 2 -NPs) on cell function; however the effects of nanoparticle against to exposure on the cell membrane have been duly addressed fascinatingly so far. However, In this interaction, which may alter cell metabolism and integrity, it is one of the importance to understand the modifications of the cell membrane, mechanisms of pulmonary A549 cell lines nanoparticles were uptake and the molecular pathway during the initial cell responses are still unclear and much more investigative efforts are need to properly characterize the ZnO doped titanium dioxide nanoparticles were reported successfully. In particular of the epithelial cells, upon particles are exposed human pulmonary epithelial cells (A549) to various concentrations of composition, structure and morphology of the nanocrystals were analyzed by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). XRD assessed the crystal structure of the nanocrystals which identified peaks associated with (002), (100) and (101) planes of hexagonal wurtzite-type ZnO with lattice constants of a = b = 3.249 A and c = 5.219 A. The IR results showed high purity of products and indicated that the nanocrystals are made up of Ti O and Zn O bonds. The Photoluminescence (PL) spectra are dominated by a strong narrow band edge emission tunable in the blue region of the visible spectra indicating a narrow size distribution of ZnO/TiO 2 nanocrystals which exhibits antibacterial activity over a broad range of bacterial species and in particular against Stre. Mut where it out competes four other commonly used E.coli, Pse. Aug, Stre. Mut and Salm. sps, well as testing four different appropriate concentration from the results showed a significant gain in viable cell numbers of all four bacteria species, with 5 mM and 10 mM being the most effective and 2 mM being the worst, where it provided an effective improvement from the growth mechanism has been also proposed to the current interest of these nanocrystals will discussed in detail.
M Simmonds - One of the best experts on this subject based on the ideXlab platform.
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investigation of n type cu2o layers prepared by a low cost Chemical Method for use in photo voltaic thin film solar cells
Renewable Energy, 2002Co-Authors: C A N Fernando, P H C De Silva, S K Wethasinha, I M Dharmadasa, T Delsol, M SimmondsAbstract:A low cost and simple Chemical Method of boiling copper plates in CuSO4 solution is used to prepare Cu2O layers. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), glow discharge optical emission spectroscopy (GDOES) and optical absorption have been used to characterise these layers. It has been found that the layers consist of Cu2O phase with a thickness of about 1.4 μm for 60 minutes boiling in CuSO4 solution. The largest grain sizes are in the order of 1 μm and the layers contain cubic Cu2O phases. The layers are n-type in electrical conduction and the optical band gap observed is 2.2 eV.
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investigation of n type cu2o layers prepared by a low cost Chemical Method for use in photo voltaic thin film solar cells
Renewable Energy, 2002Co-Authors: C A N Fernando, P H C De Silva, S K Wethasinha, I M Dharmadasa, T Delsol, M SimmondsAbstract:A low cost and simple Chemical Method of boiling copper plates in CuSO4 solution is used to prepare Cu2O layers. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), glow discharge optical emission spectroscopy (GDOES) and optical absorption have been used to characterise these layers. It has been found that the layers consist of Cu2O phase with a thickness of about 1.4 mum for 60 minutes boiling in CuSO4 solution. The largest grain sizes are in the order of 1 mum and the layers contain cubic Cu2O phases. The layers are n-type in electrical conduction and the optical band gap observed is 2.2 eV. (C) 2002 Elsevier Science Ltd. All rights reserved.