Light intensity dependence of open-circuit voltage of polymer:fullerene solar cells -: art. no. 123509
Light intensity dependence of open-circuit voltage of polymer:fullerene solar cells -: art. no. 123509
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DOI：
10.1063/1.1889240
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发表时间：
2005-03-21
影响因子：
4
通讯作者：
Blom, PWM
中科院分区：
文献类型：
--
作者：
Koster, LJA;Mihailetchi, VD;Blom, PWM
研究了不同温度下聚合物：富勒烯体异质结太阳能电池的开路电压V-oc与光强的关系。器件由作为空穴导体的聚（对亚苯基亚乙烯基）衍生物和作为电子导体的6，6-苯基C-61-丁酸甲酯的共混物组成。所观察到的光生电流和V-OC是在与经典的p-n结为基础的模型的差异。光强度和复合强度对V-OC的影响始终由基于准费米能级在整个器件中是恒定的概念的模型来解释，包括载流子的漂移和扩散。(C)2005年美国物理学会。
The open-circuit voltage V-oc of polymer:fullerene bulk heterojunction solar cells is investigated as a function of light intensity for different temperatures. Devices consisted of a blend of a poly(p-phenylene vinylene) derivative as the hole conductor and 6,6-phenyl C-61-butyric acid methyl ester as the electron conductor. The observed photogenerated current and V-oc are at variance with classical p-n junction-based models. The influence of light intensity and recombination strength on V-oc is consistently explained by a model based on the notion that the quasi-Fermi levels are constant throughout the device, including both drift and diffusion of charge carriers. (C) 2005 American Institute of Physics.