The Experts below are selected from a list of 1272 Experts worldwide ranked by ideXlab platform

Y S Raptis - One of the best experts on this subject based on the ideXlab platform.

  • tunable properties of mg doped v2o5 thin films for energy applications li ion batteries and Electrochromics
    Journal of Physical Chemistry C, 2017
    Co-Authors: Marianthi Panagopoulou, D Vernardou, E Koudoumas, N Katsarakis, D Tsoukalas, Y S Raptis
    Abstract:

    Vanadium pentoxide (V2O5) is doped for the first time with Mg, and the influence of Mg content on the films properties and functionality is investigated in detail, emphasis given on the electrochemical and Electrochromic response. The Mg-doped V2O5 films exhibit characteristics suitable for lithium ion batteries and Electrochromic Window applications, the optimization of the functionality depending on the Mg content. Low Mg content (2 at. % Mg) appears to favor lithium ion battery applications, the corresponding films exhibiting high specific discharge capacity, increased diffusion coefficient, and high capacity retention. In contrast, high Mg content (15 at. % Mg) is more favorable for Electrochromic Windows, presenting fast switching response time, high coloration efficiency, and high visible transmittance. In both cases, the determined characteristics are superior or at least equivalent to those reported for V2O5 doped with other transition metals. The obtained results clearly indicate that tuning of t...

  • Tunable Properties of Mg-Doped V2O5 Thin Films for Energy Applications: Li-Ion Batteries and Electrochromics
    2016
    Co-Authors: Marianthi Panagopoulou, D Vernardou, E Koudoumas, N Katsarakis, D Tsoukalas, Y S Raptis
    Abstract:

    Vanadium pentoxide (V2O5) is doped for the first time with Mg, and the influence of Mg content on the films properties and functionality is investigated in detail, emphasis given on the electrochemical and Electrochromic response. The Mg-doped V2O5 films exhibit characteristics suitable for lithium ion batteries and Electrochromic Window applications, the optimization of the functionality depending on the Mg content. Low Mg content (2 at. % Mg) appears to favor lithium ion battery applications, the corresponding films exhibiting high specific discharge capacity, increased diffusion coefficient, and high capacity retention. In contrast, high Mg content (15 at. % Mg) is more favorable for Electrochromic Windows, presenting fast switching response time, high coloration efficiency, and high visible transmittance. In both cases, the determined characteristics are superior or at least equivalent to those reported for V2O5 doped with other transition metals. The obtained results clearly indicate that tuning of the Mg doping enables the growth of thin films with application-centered characteristics

Hui Huang - One of the best experts on this subject based on the ideXlab platform.

  • Electrochromic properties of porous nio thin film as a counter electrode for nio wo3 complementary Electrochromic Window
    Electrochimica Acta, 2011
    Co-Authors: Hui Huang, Jian Tian, Wenkui Zhang, Yongping Gan, Xinyong Tao, Xinhui Xia
    Abstract:

    Abstract Highly porous nickel oxide (NiO) thin films were prepared on ITO glass by chemical bath deposition (CBD) method. SEM results show that the as-deposited NiO film is constructed by many interconnected nanoflakes with a thickness of about 20 nm. The Electrochromic properties of the NiO film were investigated in a nonaqueous LiClO 4 –PC electrolyte by means of optical transmittance, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The NiO film exhibits a noticeable Electrochromic performance with a variation of transmittance up to 38.6% at 550 nm. The CV and EIS measurements reveal that the NiO film has high electrochemical reaction activity and reversibility due to its highly porous structure. The Electrochromic (EC) Window based on complementary WO 3 /NiO structure shows an optical modulation of 83.7% at 550 nm, much higher than that of single WO 3 film (65.5% at 550 nm). The response time of the EC widow is found to be about 1.76 s for coloration and 1.54 s for bleaching, respectively. These advantages such as large optical modulation, fast switch speed and excellent cycle durability make it attractive for a practical application.

  • Electrochromic properties of porous nio thin film as a counter electrode for nio wo3 complementary Electrochromic Window
    Electrochimica Acta, 2011
    Co-Authors: Hui Huang, Jian Tian, Wenkui Zhang, J P Tu
    Abstract:

    Abstract Highly porous nickel oxide (NiO) thin films were prepared on ITO glass by chemical bath deposition (CBD) method. SEM results show that the as-deposited NiO film is constructed by many interconnected nanoflakes with a thickness of about 20 nm. The Electrochromic properties of the NiO film were investigated in a nonaqueous LiClO 4 –PC electrolyte by means of optical transmittance, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The NiO film exhibits a noticeable Electrochromic performance with a variation of transmittance up to 38.6% at 550 nm. The CV and EIS measurements reveal that the NiO film has high electrochemical reaction activity and reversibility due to its highly porous structure. The Electrochromic (EC) Window based on complementary WO 3 /NiO structure shows an optical modulation of 83.7% at 550 nm, much higher than that of single WO 3 film (65.5% at 550 nm). The response time of the EC widow is found to be about 1.76 s for coloration and 1.54 s for bleaching, respectively. These advantages such as large optical modulation, fast switch speed and excellent cycle durability make it attractive for a practical application.

Xinhui Xia - One of the best experts on this subject based on the ideXlab platform.

  • Electrochromic properties of porous nio thin film as a counter electrode for nio wo3 complementary Electrochromic Window
    Electrochimica Acta, 2011
    Co-Authors: Hui Huang, Jian Tian, Wenkui Zhang, Yongping Gan, Xinyong Tao, Xinhui Xia
    Abstract:

    Abstract Highly porous nickel oxide (NiO) thin films were prepared on ITO glass by chemical bath deposition (CBD) method. SEM results show that the as-deposited NiO film is constructed by many interconnected nanoflakes with a thickness of about 20 nm. The Electrochromic properties of the NiO film were investigated in a nonaqueous LiClO 4 –PC electrolyte by means of optical transmittance, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The NiO film exhibits a noticeable Electrochromic performance with a variation of transmittance up to 38.6% at 550 nm. The CV and EIS measurements reveal that the NiO film has high electrochemical reaction activity and reversibility due to its highly porous structure. The Electrochromic (EC) Window based on complementary WO 3 /NiO structure shows an optical modulation of 83.7% at 550 nm, much higher than that of single WO 3 film (65.5% at 550 nm). The response time of the EC widow is found to be about 1.76 s for coloration and 1.54 s for bleaching, respectively. These advantages such as large optical modulation, fast switch speed and excellent cycle durability make it attractive for a practical application.

J P Tu - One of the best experts on this subject based on the ideXlab platform.

  • Electrochromic properties of porous nio thin film as a counter electrode for nio wo3 complementary Electrochromic Window
    Electrochimica Acta, 2011
    Co-Authors: Hui Huang, Jian Tian, Wenkui Zhang, J P Tu
    Abstract:

    Abstract Highly porous nickel oxide (NiO) thin films were prepared on ITO glass by chemical bath deposition (CBD) method. SEM results show that the as-deposited NiO film is constructed by many interconnected nanoflakes with a thickness of about 20 nm. The Electrochromic properties of the NiO film were investigated in a nonaqueous LiClO 4 –PC electrolyte by means of optical transmittance, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The NiO film exhibits a noticeable Electrochromic performance with a variation of transmittance up to 38.6% at 550 nm. The CV and EIS measurements reveal that the NiO film has high electrochemical reaction activity and reversibility due to its highly porous structure. The Electrochromic (EC) Window based on complementary WO 3 /NiO structure shows an optical modulation of 83.7% at 550 nm, much higher than that of single WO 3 film (65.5% at 550 nm). The response time of the EC widow is found to be about 1.76 s for coloration and 1.54 s for bleaching, respectively. These advantages such as large optical modulation, fast switch speed and excellent cycle durability make it attractive for a practical application.

Marianthi Panagopoulou - One of the best experts on this subject based on the ideXlab platform.

  • tunable properties of mg doped v2o5 thin films for energy applications li ion batteries and Electrochromics
    Journal of Physical Chemistry C, 2017
    Co-Authors: Marianthi Panagopoulou, D Vernardou, E Koudoumas, N Katsarakis, D Tsoukalas, Y S Raptis
    Abstract:

    Vanadium pentoxide (V2O5) is doped for the first time with Mg, and the influence of Mg content on the films properties and functionality is investigated in detail, emphasis given on the electrochemical and Electrochromic response. The Mg-doped V2O5 films exhibit characteristics suitable for lithium ion batteries and Electrochromic Window applications, the optimization of the functionality depending on the Mg content. Low Mg content (2 at. % Mg) appears to favor lithium ion battery applications, the corresponding films exhibiting high specific discharge capacity, increased diffusion coefficient, and high capacity retention. In contrast, high Mg content (15 at. % Mg) is more favorable for Electrochromic Windows, presenting fast switching response time, high coloration efficiency, and high visible transmittance. In both cases, the determined characteristics are superior or at least equivalent to those reported for V2O5 doped with other transition metals. The obtained results clearly indicate that tuning of t...

  • Tunable Properties of Mg-Doped V2O5 Thin Films for Energy Applications: Li-Ion Batteries and Electrochromics
    2016
    Co-Authors: Marianthi Panagopoulou, D Vernardou, E Koudoumas, N Katsarakis, D Tsoukalas, Y S Raptis
    Abstract:

    Vanadium pentoxide (V2O5) is doped for the first time with Mg, and the influence of Mg content on the films properties and functionality is investigated in detail, emphasis given on the electrochemical and Electrochromic response. The Mg-doped V2O5 films exhibit characteristics suitable for lithium ion batteries and Electrochromic Window applications, the optimization of the functionality depending on the Mg content. Low Mg content (2 at. % Mg) appears to favor lithium ion battery applications, the corresponding films exhibiting high specific discharge capacity, increased diffusion coefficient, and high capacity retention. In contrast, high Mg content (15 at. % Mg) is more favorable for Electrochromic Windows, presenting fast switching response time, high coloration efficiency, and high visible transmittance. In both cases, the determined characteristics are superior or at least equivalent to those reported for V2O5 doped with other transition metals. The obtained results clearly indicate that tuning of the Mg doping enables the growth of thin films with application-centered characteristics