The Experts below are selected from a list of 321 Experts worldwide ranked by ideXlab platform
Weiyan Wang - One of the best experts on this subject based on the ideXlab platform.
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ultraflexible and biodegradable perovskite solar cells utilizing ultrathin Cellophane paper substrates and tio2 ag tio2 transparent electrodes
Solar Energy, 2019Co-Authors: Hongjiang Li, Xiaodong Li, Jinhua Huang, Shiqiang Huang, Junfeng Fang, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Flexible perovskite solar cells (PSCs) on paper are promising biodegradable power sources for wearable and portable electronics, while fabrication of paper-based PSCs with high mechanical flexibility and efficiency is still challenging due to the limited optimization of paper-based PSCs. Herein, flexible PSCs were demonstrated using 25 μm Cellophane paper substrates combined with TiO2/ultrathin Ag/TiO2 (OMO) electrodes, composing the typical structure of Cellophane/OMO/C60 pyrrolidinetris-acid (CPTA)/CH3NH3PbI3/Spiro-OMeTAD/Au. PSCs on Cellophane paper exhibited a high power conversion efficiency (PCE) of 13.00%. More interesting, the performance of paper-based PSCs showed minor degradation after bending with the radius in the range of 0.3–10 mm: they retained 97.6% of the initial PCE after bending with a radius of 0.3 mm and even preserved 95.8% of the initial PCE after bending with a radius of 1 mm for 1000 cycles. The ultraflexibility of PSCs was ascribed to the ultrathin substrates to relieve strain in bended devices and superior flexibility of OMO electrodes. The ultraflexible and efficient PSCs on paper are promising for application in self-powered paper-based electronics.
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vapor textured aluminum doped zinc oxide on Cellophane paper for flexible thin film solar cells
Solar Energy Materials and Solar Cells, 2018Co-Authors: Vladimir Smirnov, Hongjiang Li, Sandra Moll, F Finger, Ling Ai, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Paper-based flexible thin film solar cells are promising power sources for the emerging portable and wearable electronics, for which high conversion efficiency and flexibility are demanded. Herein, flexible thin film silicon solar cells using textured aluminum-doped zinc oxide (AZO) for light scattering, and ultrathin silver electrodes combined with Cellophane paper substrates, were demonstrated. A universal route to form textured AZO thin film by chemical etching with hydrochloric acid vapor was proposed. The AZO layers textured in this way exhibited similar light scattering properties as compared with state-of-the-art AZO thin films. Applying textured AZO to solar cells on Cellophane paper substrates resulted in current density and conversion efficiency increase from 8.7 to 9.5 mA/cm2 and from 4.1% to 5.7%, respectively. Thin film solar cells on Cellophane exhibited excellent mechanical flexibility, which maintained 90% of their initial efficiency after bending at a radius of 1 mm for 50 cycles.
Weijie Song - One of the best experts on this subject based on the ideXlab platform.
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ultraflexible and biodegradable perovskite solar cells utilizing ultrathin Cellophane paper substrates and tio2 ag tio2 transparent electrodes
Solar Energy, 2019Co-Authors: Hongjiang Li, Xiaodong Li, Jinhua Huang, Shiqiang Huang, Junfeng Fang, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Flexible perovskite solar cells (PSCs) on paper are promising biodegradable power sources for wearable and portable electronics, while fabrication of paper-based PSCs with high mechanical flexibility and efficiency is still challenging due to the limited optimization of paper-based PSCs. Herein, flexible PSCs were demonstrated using 25 μm Cellophane paper substrates combined with TiO2/ultrathin Ag/TiO2 (OMO) electrodes, composing the typical structure of Cellophane/OMO/C60 pyrrolidinetris-acid (CPTA)/CH3NH3PbI3/Spiro-OMeTAD/Au. PSCs on Cellophane paper exhibited a high power conversion efficiency (PCE) of 13.00%. More interesting, the performance of paper-based PSCs showed minor degradation after bending with the radius in the range of 0.3–10 mm: they retained 97.6% of the initial PCE after bending with a radius of 0.3 mm and even preserved 95.8% of the initial PCE after bending with a radius of 1 mm for 1000 cycles. The ultraflexibility of PSCs was ascribed to the ultrathin substrates to relieve strain in bended devices and superior flexibility of OMO electrodes. The ultraflexible and efficient PSCs on paper are promising for application in self-powered paper-based electronics.
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vapor textured aluminum doped zinc oxide on Cellophane paper for flexible thin film solar cells
Solar Energy Materials and Solar Cells, 2018Co-Authors: Vladimir Smirnov, Hongjiang Li, Sandra Moll, F Finger, Ling Ai, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Paper-based flexible thin film solar cells are promising power sources for the emerging portable and wearable electronics, for which high conversion efficiency and flexibility are demanded. Herein, flexible thin film silicon solar cells using textured aluminum-doped zinc oxide (AZO) for light scattering, and ultrathin silver electrodes combined with Cellophane paper substrates, were demonstrated. A universal route to form textured AZO thin film by chemical etching with hydrochloric acid vapor was proposed. The AZO layers textured in this way exhibited similar light scattering properties as compared with state-of-the-art AZO thin films. Applying textured AZO to solar cells on Cellophane paper substrates resulted in current density and conversion efficiency increase from 8.7 to 9.5 mA/cm2 and from 4.1% to 5.7%, respectively. Thin film solar cells on Cellophane exhibited excellent mechanical flexibility, which maintained 90% of their initial efficiency after bending at a radius of 1 mm for 50 cycles.
Hongjiang Li - One of the best experts on this subject based on the ideXlab platform.
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ultraflexible and biodegradable perovskite solar cells utilizing ultrathin Cellophane paper substrates and tio2 ag tio2 transparent electrodes
Solar Energy, 2019Co-Authors: Hongjiang Li, Xiaodong Li, Jinhua Huang, Shiqiang Huang, Junfeng Fang, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Flexible perovskite solar cells (PSCs) on paper are promising biodegradable power sources for wearable and portable electronics, while fabrication of paper-based PSCs with high mechanical flexibility and efficiency is still challenging due to the limited optimization of paper-based PSCs. Herein, flexible PSCs were demonstrated using 25 μm Cellophane paper substrates combined with TiO2/ultrathin Ag/TiO2 (OMO) electrodes, composing the typical structure of Cellophane/OMO/C60 pyrrolidinetris-acid (CPTA)/CH3NH3PbI3/Spiro-OMeTAD/Au. PSCs on Cellophane paper exhibited a high power conversion efficiency (PCE) of 13.00%. More interesting, the performance of paper-based PSCs showed minor degradation after bending with the radius in the range of 0.3–10 mm: they retained 97.6% of the initial PCE after bending with a radius of 0.3 mm and even preserved 95.8% of the initial PCE after bending with a radius of 1 mm for 1000 cycles. The ultraflexibility of PSCs was ascribed to the ultrathin substrates to relieve strain in bended devices and superior flexibility of OMO electrodes. The ultraflexible and efficient PSCs on paper are promising for application in self-powered paper-based electronics.
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vapor textured aluminum doped zinc oxide on Cellophane paper for flexible thin film solar cells
Solar Energy Materials and Solar Cells, 2018Co-Authors: Vladimir Smirnov, Hongjiang Li, Sandra Moll, F Finger, Ling Ai, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Paper-based flexible thin film solar cells are promising power sources for the emerging portable and wearable electronics, for which high conversion efficiency and flexibility are demanded. Herein, flexible thin film silicon solar cells using textured aluminum-doped zinc oxide (AZO) for light scattering, and ultrathin silver electrodes combined with Cellophane paper substrates, were demonstrated. A universal route to form textured AZO thin film by chemical etching with hydrochloric acid vapor was proposed. The AZO layers textured in this way exhibited similar light scattering properties as compared with state-of-the-art AZO thin films. Applying textured AZO to solar cells on Cellophane paper substrates resulted in current density and conversion efficiency increase from 8.7 to 9.5 mA/cm2 and from 4.1% to 5.7%, respectively. Thin film solar cells on Cellophane exhibited excellent mechanical flexibility, which maintained 90% of their initial efficiency after bending at a radius of 1 mm for 50 cycles.
Jia Li - One of the best experts on this subject based on the ideXlab platform.
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ultraflexible and biodegradable perovskite solar cells utilizing ultrathin Cellophane paper substrates and tio2 ag tio2 transparent electrodes
Solar Energy, 2019Co-Authors: Hongjiang Li, Xiaodong Li, Jinhua Huang, Shiqiang Huang, Junfeng Fang, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Flexible perovskite solar cells (PSCs) on paper are promising biodegradable power sources for wearable and portable electronics, while fabrication of paper-based PSCs with high mechanical flexibility and efficiency is still challenging due to the limited optimization of paper-based PSCs. Herein, flexible PSCs were demonstrated using 25 μm Cellophane paper substrates combined with TiO2/ultrathin Ag/TiO2 (OMO) electrodes, composing the typical structure of Cellophane/OMO/C60 pyrrolidinetris-acid (CPTA)/CH3NH3PbI3/Spiro-OMeTAD/Au. PSCs on Cellophane paper exhibited a high power conversion efficiency (PCE) of 13.00%. More interesting, the performance of paper-based PSCs showed minor degradation after bending with the radius in the range of 0.3–10 mm: they retained 97.6% of the initial PCE after bending with a radius of 0.3 mm and even preserved 95.8% of the initial PCE after bending with a radius of 1 mm for 1000 cycles. The ultraflexibility of PSCs was ascribed to the ultrathin substrates to relieve strain in bended devices and superior flexibility of OMO electrodes. The ultraflexible and efficient PSCs on paper are promising for application in self-powered paper-based electronics.
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vapor textured aluminum doped zinc oxide on Cellophane paper for flexible thin film solar cells
Solar Energy Materials and Solar Cells, 2018Co-Authors: Vladimir Smirnov, Hongjiang Li, Sandra Moll, F Finger, Ling Ai, Jia Li, Weiyan Wang, Weijie SongAbstract:Abstract Paper-based flexible thin film solar cells are promising power sources for the emerging portable and wearable electronics, for which high conversion efficiency and flexibility are demanded. Herein, flexible thin film silicon solar cells using textured aluminum-doped zinc oxide (AZO) for light scattering, and ultrathin silver electrodes combined with Cellophane paper substrates, were demonstrated. A universal route to form textured AZO thin film by chemical etching with hydrochloric acid vapor was proposed. The AZO layers textured in this way exhibited similar light scattering properties as compared with state-of-the-art AZO thin films. Applying textured AZO to solar cells on Cellophane paper substrates resulted in current density and conversion efficiency increase from 8.7 to 9.5 mA/cm2 and from 4.1% to 5.7%, respectively. Thin film solar cells on Cellophane exhibited excellent mechanical flexibility, which maintained 90% of their initial efficiency after bending at a radius of 1 mm for 50 cycles.
Richard A Prinz - One of the best experts on this subject based on the ideXlab platform.
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histopathologic changes induced by Cellophane wrapping of the pancreas are unaffected by cigarette smoke exposure in hamsters
Pancreatology, 2002Co-Authors: Dhaval Patel, Paolo Gattuso, Goldie Djuricin, Scott Girard, Robert A Cambria, Julie A Freischlag, Holly Kelly, Richard A PrinzAbstract:This study tests whether exposure to cigarette smoke alone or combined with Cellophane wrapping of the pancreas increases the development of microscopic abnormalities in the pancreas of Syrian golden
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histopathologic changes induced by Cellophane wrapping of the pancreas are unaffected by cigarette smoke exposure in hamsters
Pancreatology, 2002Co-Authors: Anthony W Kim, Dhaval Patel, Paolo Gattuso, Robert A Cambria, Julie A Freischlag, Holly Kelly, Qiang Liu, Goldie Djurici, Sco Girard, Richard A PrinzAbstract:This study tests whether exposure to cigarette smoke alone or combined with Cellophane wrapping of the pancreas increases the development of microscopic abnormalities in the pancreas of Syrian golden hamsters. Ninety hamsters were randomly divided into 4 groups. Thirty-five hamsters were exposed to 3 continuous hours of cigarette smoke daily for 3 months following celiotomy to Cellophane wrap the gastric lobe of the pancreas (group 1). Thirty-two hamsters were not exposed to continuous cigarette smoke and had the wrap surgery alone (group 2). Twelve hamsters were exposed to cigarette smoke and had no surgery (group 3). Eleven hamsters had no exposure to cigarette smoke and no surgery (group 4). All of the hamsters were sacrificed after 3 months. The gastric (wrapped) and splenic (unwrapped) lobes of the pancreas were reviewed grossly and histologically. In all 4 groups, there were no gross abnormalities in either lobe of the pancreas. Histopathologic evaluation of the gastric lobes from group 1 showed that 13 of 35 lobes (37%) had pancreatitis (11 chronic, 1 acute, and 1 both). In group 2, 12 of 32 (38%) gastric lobes had pancreatitis (10 chronic, 2 acute). The incidence of pancreatitis in groups 1 and 2 was significantly higher than in groups 3 (0/12; p < 0.04) and 4 (0/11; p < 0.03), respectively. A significantly lower incidence of pancreatitis was found in the splenic lobes of all 4 groups when compared to gastric lobes in groups 1 and 2. Three of the 67 Cellophane-wrapped glands had ductal hyperplasia. The effects of Cellophane wrapping of the pancreas, both in the wrapped and unwrapped areas, induced changes of pancreatitis and hyperplasia that may be preneoplastic. Cigarette smoking, alone or combined with Cellophane wrapping, did not cause these changes. Longer exposure to cigarette smoke may be needed to cause premalignant changes in the hamster pancreas.