能量转换效率
有机太阳能电池
材料科学
光电子学
图层(电子)
光伏系统
电极
有机半导体
太阳能电池
苝
薄膜
酞菁
纳米技术
化学
电气工程
有机化学
分子
物理化学
工程类
摘要
A thin-film, two-layer organic photovoltaic cell has been fabricated from copper phthalocyanine and a perylene tetracarboxylic derivative. A power conversion efficiency of about 1% has been achieved under simulated AM2 illumination. A novel feature of the device is that the charge-generation efficiency is relatively independent of the bias voltage, resulting in cells with fill factor values as high as 0.65. The interface between the two organic materials, rather than the electrode/organic contacts, is crucial in determining the photovoltaic properties of the cell.
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