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An air-stable inverted photovoltaic device using ZnO as the electron selective layer and MoO_3 as the blocking layer 被引量:5
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作者 宋朋飞 秦文静 +3 位作者 丁国静 闫齐齐 杨利营 印寿根 《Optoelectronics Letters》 EI 2011年第5期330-333,共4页
An air-stable photovoltaic device based on znic oxide nanoparticles (ZNP) in an inverted structure of indium tin oxide (ITO)/ZnO/poly (3-hexylthiophene) (P3HT): [6,6]-phenyl C61-butyric acid methyl ester (P... An air-stable photovoltaic device based on znic oxide nanoparticles (ZNP) in an inverted structure of indium tin oxide (ITO)/ZnO/poly (3-hexylthiophene) (P3HT): [6,6]-phenyl C61-butyric acid methyl ester (PCBM)/MoO3/Ag is studied. We fm.d that the optimum thickness of the MoO3 layer is 2 nm. When the MoO3 blocking layer is introduced, the fill factor of the devices is increased from 29% to 40%, the power conversion efficiency is directly promoted from 0.35% to 1.27%.The stability under ambient conditions of this inverted structure device much is better due to the improved stability at the polymer/Ag interface. The enhancement is attributed to the high carriers mobility and suitable band gap of MoO3 layer. 展开更多
关键词 Butyric acid Conversion efficiency Fatty acids Indium compounds Photovoltaic effects Silver Tin Tin oxides Zinc oxide
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Performance improvement of organic bulk heterojunction solar cells by using dihydroxybenzene as additive 被引量:2
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作者 姚聪 杨利营 +3 位作者 王亚凌 秦文静 印寿根 张凤玲 《Optoelectronics Letters》 EI 2011年第4期246-248,共3页
We report the enhanced performance of organic solar cells(OSCs) based on regioregular poly(3-hexylthiophene)(P3HT) and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester(PCBM) blend by using dihydroxybenzene ... We report the enhanced performance of organic solar cells(OSCs) based on regioregular poly(3-hexylthiophene)(P3HT) and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester(PCBM) blend by using dihydroxybenzene as additive in the active layer.The effect of the content of the additives on electrical characteristics of the device is studied.The device with 0.2 wt% dihydroxybenzene additive achieves the best power conversion efficiency(PCE) of 4.58% with Jsc of 12.5 mA/cm2,Voc of 0.65 V,and FF of 66.6% under simulated solar illumination of AM 1.5G(100 mW/cm2),compared with the control device with PCE of 3.39%(35% improvement compared with the control device).The XRD measurement reveals that the addition of additives induces the crystallization of P3HT and establishes good inter-network to increase the contact area of donor and acceptor,and then helps charge to be effectively transferred to the electrode to reduce the chance of recombination.All evidences indicate that the dihydroxybenzene is likely to be a promising new type additive that can enhance the performance of organic bulk heterojunction solar cells. 展开更多
关键词 ADDITIVES Butyric acid CONTROL Conversion efficiency Fatty acids
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Influence of blue-light polarization on light scattering in nano-crystal luminescent glass for white light-emitting-diodes 被引量:1
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作者 李洪国 张颖涛 +3 位作者 钟鼎 徐所成 费沁妮 王达健 《Optoelectronics Letters》 EI 2010年第3期164-167,共4页
The influence of the polarized state of blue light on light scattering in InGaN blue chip nano-crystal luminescent glass for solid state lighting is investigated.Based on Rayleigh-Debye approximation theory,theoretica... The influence of the polarized state of blue light on light scattering in InGaN blue chip nano-crystal luminescent glass for solid state lighting is investigated.Based on Rayleigh-Debye approximation theory,theoretical relationships between the light scattering turbidity and wavelength of the incident light,radius and refractive index of the nano-crystals are established to simulate the situations in yttrium aluminate garnet(YAG),silicate and oxynitride based luminescence glass.It is revealed that the scattering turbidity in luminescent glass turns to be the smallest as the effective refractive index of nanocrystals is equal to that of parent glass,and the scattering turbidity for the vertically polarized incident light is greater than that for the un-polarized incident light,while that for the horizontally polarized incident light is smaller than that for the unpolarized incident light under the same conditions. 展开更多
关键词 白光发光二极管 纳米晶体 蓝色玻璃 光偏振态 光散射 入射光波长 有效折射率 发光玻璃
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Rhenium oxide as the interfacial buffer layer for polymer photovoltaic cells
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作者 徐昊 杨利营 +2 位作者 田慧 印寿根 张凤玲 《Optoelectronics Letters》 EI 2010年第3期176-178,共3页
The effect of a new interfacial buffer layer material,rhenium oxide(ReO3),on the performance of polymer solar cells based on regioregular poly(3-hexylthiophene)(P3HT) and methanofullerene [6,6]-phenyl C61-butyric acid... The effect of a new interfacial buffer layer material,rhenium oxide(ReO3),on the performance of polymer solar cells based on regioregular poly(3-hexylthiophene)(P3HT) and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester(PCBM) blend is investigated.The effect of the thickness of the oxide layer on electrical characteristics of the device is also studied.Compared with traditional devices,by inserting a 10 nm-thick ReO3 as the anode buffer layer,a power conversion efficiency(PCE) of 2.8 %(a 37% improvement compared with the control devices) can be obtained with Jsc of 13.6 mA/cm2,Voc of 0.45 V,and a fill factor(FF) of 53.6% under the simulated AM1.5 G 100 mW/cm2 illumination in air.It is indicated that ReO3 can be used as an effective buffer layer to enhance the polymer bulk heterojunction(BHJ) photovoltaic cell efficiency. 展开更多
关键词 太阳能电池 缓冲层 聚合物 氧化物 界面 电源转换效率 传统设备
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