Constructing efficient organic solar cells by highly volatile solid additives with controlled phase morphology

Yueheng Liu; Yetai Cheng; Shenbo Zhu; Zhengdong Wei; Chenyi Zhang; Shuyue Song; Xinyue Cui; Ya-Nan Chen; Andong Zhang; Yahui Liu; Hao Lu; Huawei Hu; Zhishan Bo

doi:10.1039/D4CC04675G

Constructing efficient organic solar cells by highly volatile solid additives with controlled phase morphology†

Yueheng Liu,‡^a Yetai Cheng,‡^a Shenbo Zhu,^d Zhengdong Wei,^ab Chenyi Zhang,^a Shuyue Song,^a Xinyue Cui,^a Ya-Nan Chen,^a Andong Zhang,^a Yahui Liu,

*^a Hao Lu,

*^b Huawei Hu

*^d and Zhishan Bo

*^ac

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* Corresponding authors

^a College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
E-mail: liuyh@qdu.edu.cn, zsbo@bnu.edu.cn

^b College of Materials Science and Engineering, Qingdao University, Qingdao, P. R. China
E-mail: luhao@qdu.edu.cn

^c Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China

^d State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
E-mail: huaweihu@dhu.edu.cn

Abstract

We synthesized two highly volatile and low-cost solid additives, PT and TFT. The inclusion of PT and TFT effectively influences the aggregation behavior of D18: L8-BO during the film-forming process. Consequently, PT and TFT-treated D18: L8-BO-based OSCs achieved power conversion efficiencies of 18.28% and 19.19%, respectively. This study provides a straightforward approach for achieving efficient photovoltaic performance of OSCs.

Chemical Communications

Constructing efficient organic solar cells by highly volatile solid additives with controlled phase morphology†

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