Annealing treatment effects on the performances of solar cells based on different composition systems
Annealing treatment effects on the performances of solar cells based on different composition systems
复制标题
退火处理对不同组成体系太阳能电池性能的影响
DOI：
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发表时间：
2015
影响因子：
0.5
通讯作者：
Liang Wen-Yao
中科院分区：
文献类型：
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作者：
Yu Huang-Zhong;Ge Yun-Cheng;Dong Yi-Fan;Liang Wen-Yao
以聚3-己基噻吩（P3 HT）为给体，[6，6]-苯基C61 -丁酸甲酯（PCBM）为受体，制备了不同配比的共混物太阳能电池。通过紫外-可见吸收光谱（UV-vis）、光致发光光谱（PL）和暗J-V特性分析了退火处理对不同组成比共混体系太阳能电池性能的影响。结果表明，随着PCBM质量的增加（P3 HT/PCBM=2：1，1：1，1：2），400-650 nm处P3 HT π-π * 跃迁的电子振动吸收峰强度增加，光致发光光谱强度降低，电池的开路电压也随之增加。在暗J-V特性中从指数区域转变到空间电荷限制行为的电压也随着PCBM浓度的增加而增加。130 ℃热处理对不同比例P3 HT：PCBM体系的太阳能电池性能产生不同的影响。通过紫外-可见吸收光谱、光致发光谱和暗电流-电压曲线分析了这些现象产生的原因。
The solar cells based on different composition ratio blends of poly(3-hexylthiophene) (P3HT) as donors and [6, 6]-phenyl C61 -butyric acid methyl ester (PCBM) as acceptors are fabricated. Annealing treatment effects on the performances of solar cells based on different composition ratio blend systems are analyzed by ultraviolet-visible absorption spectroscopy (UV-vis), photoluminescence spectroscopy (PL) and the dark J-V characteristics. The results show that as PCBM weight increases (P3HT/PCBM=2:1,1:1,1:2), 400-650 nm vibronic absorption peaks intensity attributed to the P3HT pi - pi* transition increase, but photoluminescence spectra intensity lower, and the open circuit voltage of solar cells also increases. The voltage at which the transition from the exponential region to space charge limited behavior in the dark J-V characteristics also increases with the increase in the PCBM concentration. 130 degrees C heat treatment produces different results on the performante of solar cells based on different proportions of P3HT:PCBM system. We discuss the causes of these phenomena by UV-vis absorption, PL spectroscopy and dark current-voltage curve.