Enhanced charge collection in polymer photovoltaic cells by using an ethanol-soluble conjugated polyfluorene as cathode buffer layer
Data(s) |
2009
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Resumo |
We report enhanced polymer photovoltaic (PV) cells by utilizing ethanol-soluble conjugated poly (9, 9-bis (6'-diethoxylphosphorylhexyl) fluorene) (PF-EP) as a buffer layer between the active layer consisting of poly(3-hexylthiophene)/[6, 6]-phenyl C61-butyric acid methyl ester blend and the Al cathode. Compared to the control PV cell with Al cathode, the introduction of PF-EP effectively increases the shunt resistance and improves the photo-generated charge collection since the slightly thicker semi-conducting PF-EP layer may restrain the penetration of Al atoms into the active layer that may result in increased leakage current and quench photo-generated excitons. The power conversion efficiency is increased ca. 8% compared to the post-annealed cell with Al cathode. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Zhao Y;Xie ZY;Qin CJ;Qu Y;Geng YH;Wang LX.Enhanced charge collection in polymer photovoltaic cells by using an ethanol-soluble conjugated polyfluorene as cathode buffer layer,SOLAR ENERGY MATERIALS AND SOLAR CELLS,2009,93(5):604-608 |
Palavras-Chave | #ORGANIC SOLAR-CELLS #LARGE-AREA #EFFICIENCY #PERFORMANCE #HETEROJUNCTIONS #POLYPLATINYNES #MORPHOLOGY #NETWORK #MODULES |
Tipo |
期刊论文 |