Fine-Tuned Photoactive and Interconnection Layers for Achieving over 13% Efficiency in a Fullerene-Free Tandem Organic Solar Cell

Journal of the American Chemical Society
Yong CuiJianhui Hou

Abstract

Fabricating organic solar cells (OSCs) with a tandem structure has been considered an effective method to overcome the limited light absorption spectra of organic photovoltaic materials. Currently, the most efficient tandem OSCs are fabricated by adopting fullerene derivatives as acceptors. In this work, we designed a new non-fullerene acceptor with an optical band gap (Egopt) of 1.68 eV for the front subcells and optimized the phase-separation morphology of a fullerene-free active layer with an Egopt of 1.36 eV to fabricate the rear subcell. The two subcells show a low energy loss and high external quantum efficiency, and their photoresponse spectra are complementary. In addition, an interconnection layer (ICL) composed of ZnO and a pH-neutral self-doped conductive polymer, PCP-Na, with high light transmittance in the near-IR range was developed. From the highly optimized subcells and ICL, solution-processed fullerene-free tandem OSCs with an average power conversion efficiency (PCE) greater than 13% were obtained.

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Citations

Mar 31, 2018·Advanced Materials·Shaoqing ZhangJianhui Hou
Aug 10, 2018·Advanced Materials·Yuanpeng XieYanming Sun
Dec 28, 2018·Advanced Materials·Dario Di Carlo Rasi, René A J Janssen
Jan 16, 2019·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Yunping Huang, Christine K Luscombe
Feb 1, 2019·Advanced Materials·Dongfeng DangErgang Wang
Feb 8, 2019·Reports on Progress in Physics·Robert S GurneyTao Wang
Jan 24, 2018·Nature Materials·Jianhui HouFeng Gao
Apr 25, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Timofey N ChmovzhOleg A Rakitin
May 28, 2019·Macromolecular Rapid Communications·Liya SunShiming Zhang
Mar 7, 2019·Royal Society Open Science·Gabriel BernardoAndrew J Parnell
Apr 5, 2020·Chemistry : a European Journal·Qinqin ShiHui Huang
Nov 21, 2017·Macromolecular Rapid Communications·Fuchuan LiuShiming Zhang
Aug 2, 2018·Nature Communications·Jiahua HuMatthew Y Sfeir
Apr 1, 2020·Physical Chemistry Chemical Physics : PCCP·Amjad AliWeihua Tang
Aug 11, 2018·Science·Lingxian MengYongsheng Chen
Sep 26, 2020·Applied Optics·Olivia Amargós-ReyesDaniel Romero-Borja
Nov 25, 2017·Macromolecular Rapid Communications·Cheng LiWeiwei Li
Mar 27, 2018·Advanced Materials·Yamin ZhangYongsheng Chen
Feb 17, 2018·Nanotechnology·Yanlong LiChenggang Tao
May 16, 2018·Physical Chemistry Chemical Physics : PCCP·Yan-Ling WangZe-Sheng Li
Oct 5, 2018·Frontiers in Chemistry·Zhenzhen ZhangYingping Zou

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