Systematic Investigation of Benzodithiophene- and Diketopyrrolopyrrole-Based Low-Bandgap Polymers Designed for Single Junction and Tandem Polymer Solar Cells
作者:Letian Dou、Jing Gao、Eric Richard、Jingbi You、Chun-Chao Chen、Kitty C. Cha、Youjun He、Gang Li、Yang Yang
DOI:10.1021/ja301460s
日期:2012.6.20
effective way to harvest a broader part of the solar spectrum and make better use of the photonic energy than the single junction cell. Here, we present the design, synthesis, and characterization of a series of new low bandgap polymers specifically for tandem polymer solar cells. These polymers have a backbone based on the benzodithiophene (BDT) and diketopyrrolopyrrole (DPP) units. Alkylthienyl and alkylphenyl
Efficient Polymer Solar Cells Based on Benzothiadiazole and Alkylphenyl Substituted Benzodithiophene with a Power Conversion Efficiency over 8%
作者:Maojie Zhang、Yu Gu、Xia Guo、Feng Liu、Shaoqing Zhang、Lijun Huo、Thomas P. Russell、Jianhui Hou
DOI:10.1002/adma.201301494
日期:2013.9.20
A new copolymer PBDTP‐DTBT based on benzothiadiazole and alkylphenylsubstitutedbenzodithiophene is synthesized and characterized. The correlation of the evolution of the morphology and photovoltaic performance is investigated. The powerconversionefficiency of the polymersolarcellsbased on PBDTP‐DTBT/PC71BM (1:1.5, w/w) reaches up to 8.07%, under the irradiation of AM 1.5G, 100 mW/cm2.
合成并表征了一种新型的基于苯并噻二唑和烷基苯基取代的苯并二噻吩的共聚物PBDTP-DTBT。研究了形态演变与光伏性能的相关性。在AM 1.5G,100 mW / cm 2的辐照下,基于PBDTP-DTBT / PC 71 BM(1:1.5,w / w)的聚合物太阳能电池的功率转换效率高达8.07%。