[1]彭清,雷钢铁,刘煜,等.太阳能电池新型聚合物给体材料的性能研究[J].中国材料进展,2015,(2):062-66.[doi:10.7502/j.issn.1674-3962.2015.02.08]
　PENG Qing,LEI Gangtie,LIU Yu,et al.The Performance of Organic Solar Cell with New Polymer Donor[J].MATERIALS CHINA,2015,(2):062-66.[doi:10.7502/j.issn.1674-3962.2015.02.08]
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太阳能电池新型聚合物给体材料的性能研究()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2015年第2期
页码:
062-66
栏目:
特约研究论文
出版日期:
2015-02-28

文章信息/Info

Title:
The Performance of Organic Solar Cell with New Polymer Donor
作者:
彭清;  雷钢铁;  刘煜;  朱卫国
环境友好化学与应用教育部重点实验室，湘潭大学化学学院，湘潭，湖南，411105
Author(s):
PENG Qing;  LEI Gangtie;  LIU Yu;  ZHU Weiguo
Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
关键词:
有机太阳能电池; 聚合物给体; 受体; 添加剂
DOI:
10.7502/j.issn.1674-3962.2015.02.08
文献标志码:
A
摘要:
设计合成了新型聚合物给体材料PTT-FTQ，以PTT-FTQ:PCBM体系作为活性层，研究了给受体比例及膜厚、受体类型、添加剂等因素对有机太阳能电池性能的影响。结果表明，当给受体比例为1:2时，PTT-FTQ能与受体PC61BM形成良好的网络结构，活性层薄膜表面变得更加光滑平整，在活性层膜厚为120 nm时，有利于吸收光子，传输激子，器件能量转化效率达到2.12%，采用1,8-二碘辛烷(DIO)做添加剂，在添加量为溶剂的1%时，效率提升到2.18%，随着DIO加入量的增加，反而会减少给受体间的界面接触面积，导致激子的解离效率和载流子的传输效率大幅度降低。而采用PC71BM做受体时，电池的短路电流密度比PC61BM体系下的要大得多，但是开路电压会稍低，这主要是PC71BM有较强的光谱吸收但LUMO能级较低，PTT-FTQ:PC71BM体系能量转化效率达到2.78%。
Abstract:
A new donor material PTT-FTQ for organic solar cell (OSC) was synthesized and investigated. With the PTT-FTQ: PCBM as active layer, the factors which influenced the performance of OSC such as the ratio of donor/acceptor, the film thickness of active layer, the various acceptors and the additive were studied and optimized. The results showed that when the ratio of donor/acceptor was 1:2, a better interpenetrating network between PTT-FTQ and PC61BM was formed and the active layer has a more smooth surface morphology. When the film thickness of active layer was 120 nm, the power conversion efficiency (PCE) of OSC was 2.12%. Using 1, 8-diiodooctane (DIO) as the additive, PCE of OSC was 2.18%. The current density of OSC with PC71BM as acceptor is much greater than that of PC61BM while the voltage is slightly lower. This is mainly due to PC71BM has lower LUMO energy level and stronger spectral absorption. High PCE of 2.78% was achieved with PC71BM as acceptor.
更新日期/Last Update: 2015-02-02