三元有机光电子(光伏、倍增型光探测)器件研究进展

来源 :2016第二届有机光电材料与器件国际会议 | 被引量 : 0次 | 上传用户:qwedddessf
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  我们基于两个窄带隙小分子材料(DRCN5T和DR3TSBDT)为给体材料,PC71BM为受体材料,制备和研究三元小分子太阳能电池.当DRCN5T与DR3TSBDT在有源层中的比例为0.7:0.3时,三元小分子太阳能电池的能量转换效率达到了10.16%,远高于DRCN5T:PC71BM(9.12%)与DR3TSBDT:PC71BM(8.24%)器件的效率值.有机太阳能电池效率的提高主要归因:(1)DRCN5T与DR3TSBDT吸收光谱的互补增强了有源层对光子的俘获;(2)合金模型的形成提升载流子在有源层中的传输效率.
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