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Organic and solution-processed tandem solar cells with 17.3% efficiency.

Science (New York, N.Y.) (2018-08-11)
Lingxian Meng, Yamin Zhang, Xiangjian Wan, Chenxi Li, Xin Zhang, Yanbo Wang, Xin Ke, Zuo Xiao, Liming Ding, Ruoxi Xia, Hin-Lap Yip, Yong Cao, Yongsheng Chen
ABSTRACT

Although organic photovoltaic (OPV) cells have many advantages, their performance still lags far behind that of other photovoltaic platforms. A fundamental reason for their low performance is the low charge mobility of organic materials, leading to a limit on the active-layer thickness and efficient light absorption. In this work, guided by a semi-empirical model analysis and using the tandem cell strategy to overcome such issues, and taking advantage of the high diversity and easily tunable band structure of organic materials, a record and certified 17.29% power conversion efficiency for a two-terminal monolithic solution-processed tandem OPV is achieved.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
PFN-Br
Sigma-Aldrich
COi8DFIC, ≥98%
Sigma-Aldrich
F-M, ≥98%