【摘 要】
：
Compared to conjugated polymer poly[2- met hoxy-5- (3, 7-dimet hyloctyloxy)- 1,4-phenylenevinylene] (MDMO-PPV)solar cells, bulk hetero junction solar cells comp
【机 构】
：
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of S
论文部分内容阅读
Compared to conjugated polymer poly[2- met hoxy-5- (3, 7-dimet hyloctyloxy)- 1,4-phenylenevinylene] (MDMO-PPV)solar cells, bulk hetero junction solar cells composed of zinc oxide (ZnO) nanocrystals and MDMO-PPV have a better energy conversion efficiency. However, ultraviolet (UV) light deteriorates the performance of solar cells composed of ZnO and MDMO-PPV. We propose a model to explain the effect of UV illumination on these ZnO:MDMO-PPV solar cells. According to this model, the degradation from UV illumination is due to a decrease of exciton dissociation efficiency. Our model is based on the experimental results such as the measurements of current density versus voltage, photoluminescence, and photocurrent.
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