Rui Zeng¹, Ming Zhang¹, Xiaodong Wang², Lei Zhu^1*, Bonan Hao¹, Wenkai Zhong¹, Guanqing Zhou¹, Jiaxing Zhuang¹, Anyang Zhang¹, Fei Han¹, Zichun Zhou¹, Xiaonan Xue³, Shengjie Xu¹, Jinqiu Xu¹, Yahui Liu², Hao Lu², Xuefei Wu³, Cheng Wang⁴, Zachary Fink^4,5, Thomas P. Russell^4,5, Hao Jing³, Yongming Zhang^1,6, Zhishan Bo^2,7*, Feng Liu^1,6*

1 School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In-situ Center for Physical Science, and Center of Hydrogen Science Shanghai Jiao Tong University, Shanghai 200240, China.

2 College of Textiles & Clothing, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China.

3 Shanghai OPV Solar New Energy Technology Co., Ltd., Shanghai 201210, China.

4 Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

5 Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA01003, USA.

6 State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company, Zibo City, Shandong 256401, China.

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

* Corresponding authors emails: zhulei1130@outlook.com, zsbo@bnu.edu.cn, fengliu82@sjtu.edu.cn

DOI10.24435/materialscloud:nt-y8 [version v1]

Publication date: Aug 31, 2023

How to cite this record

Rui Zeng, Ming Zhang, Xiaodong Wang, Lei Zhu, Bonan Hao, Wenkai Zhong, Guanqing Zhou, Jiaxing Zhuang, Anyang Zhang, Fei Han, Zichun Zhou, Xiaonan Xue, Shengjie Xu, Jinqiu Xu, Yahui Liu, Hao Lu, Xuefei Wu, Cheng Wang, Zachary Fink, Thomas P. Russell, Hao Jing, Yongming Zhang, Zhishan Bo, Feng Liu, Achieving 19% efficiency in nonfused ring electron acceptor solar cells via solubility hysteresis sequential condensation strategy, Materials Cloud Archive 2023.135 (2023), https://doi.org/10.24435/materialscloud:nt-y8

Description

Nonfused ring electron acceptors (NFREAs) are interesting n-type near infrared (NIR) photoactive semiconductors with strong molecular absorption and easy synthetic route. However, the low backbone planarity and bulky substitution make NFREA less crystalline, which significantly retards charge transport and the formation of bicontinuous morphology in organic photovoltaic device. Donor and acceptor solubility in different solvents is studied, and the created solubility hysteresis can induce the formation of the highly crystalline donor polymer fibril to purify the NFREA phase, thus a better bicontinuous morphology with improved crystallinity. Based on these results, a general solubility hysteresis sequential condensation (SHSC) thin film fabrication methodology is established to produce highly uniform and smooth photoactive layer. The well-defined interpenetrating network morphology afforded a record efficiency of 19.02%, which is ~22% improvement comparing to conventional device fabrication. A high efficiency retention (Pr) value of 92.3% is achieved in 1 cm² device (17.28% efficiency).

Materials Cloud sections using this data

Files

File name	Size	Description
Table1.xlsx MD5md5:4d9ecb6fe8f3c736f15faad5a663ac48	12.8 KiB	Specific performance parameters in different preparation conditions based on organic solar cells in this paper.
Supplementary_Table4.xlsx MD5md5:f3be51c4010bab0d37eb43e350f1ce58	19.4 KiB	The device optimization for OXY content in CF&OXY mixed solution under AM 1.5G, 100 mA cm².
Supplementary_Table5.xlsx MD5md5:8273b020b95a958f266a45a9b96efc10	17.7 KiB	The device optimization for solid additive DIB content under AM 1.5G, 100 mA cm².
Supplementary_Table17.xlsx MD5md5:2dc4b76a3982cdb813961830e7af8fa3	16.4 KiB	The efficiency for CF, OXY, CF&OXY based devices in area of 5.2 mm^2 and 100 mm^2 under AM 1.5G, 100 mA cm².

License

Files and data are licensed under the terms of the following license: Creative Commons Attribution 4.0 International.
Metadata, except for email addresses, are licensed under the Creative Commons Attribution Share-Alike 4.0 International license.

External references

Keywords

organic solar cells nonfused ring electron acceptor record efficiency large-area device experimental