Formula: C51H42O3Pd2In 2020 ,《14.4% efficiency all-polymer solar cell with broad absorption and low energy loss enabled by a novel polymer acceptor》 was published in Nano Energy. The article was written by Jia, Tao; Zhang, Jiabin; Zhong, Wenkai; Liang, Yuanying; Zhang, Kai; Dong, Sheng; Ying, Lei; Liu, Feng; Wang, Xiaohui; Huang, Fei; Cao, Yong. The article contains the following contents:
All-polymer solar cells (All-PSCs) offer several distinct merits including superior thermal stability and flexibility. Here, we report a novel polymer acceptor PJ1 that exhibits a narrow band gap around 1.4 eV and a high extinction coefficient about 1.39 ×105 cm-1. When PJ1 is blended with donor polymer PBDB-T, all-PSC with a record power conversion efficiency (PCE) of 14.4% is achieved, which is mainly attributed to the broad absorption, efficient charge separation and collection, and low energy loss. The synergetic effects of mol. weight of PJ1 on the photovoltaic performance are also investigated. It is found that the increase in mol. weight can result in the red-shift of absorption along with slight enhancement of extinction coefficient, which therefore benefits photocurrent. In addition, all-PSC based on PJ1 demonstrate much better thermal stability than the control device based on small mol. acceptor (TTPBT-IC), as evidenced by the insignificant morphol. change of PBDB-T:PJ1 vs. excessive phase separation of PBDB-T:TTPBT-IC when annealed at 150°C. Of particular interest is that the all-PSCs based on PBDB-T:PJ1 can retain high PCEs even when the thickness of photoactive layer is increased over 300 nm (PCE of 12.1%) or the device area is enlarged to 1 cm2 (PCE of 13.0%). In the experiment, the researchers used many compounds, for example, Tris(dibenzylideneacetone)dipalladium(0)(cas: 51364-51-3Formula: C51H42O3Pd2)
Tris(dibenzylideneacetone)dipalladium(0)(cas: 51364-51-3) is used in the preparation of semiconducting polymers processed from nonchlorinated solvents into high performance thin film transistors.Formula: C51H42O3Pd2 It is also used in the synthesis of polymer bulk-heterojunction solar sells as a semiconductor.
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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI