Graphdiyne Derivative as Multifunctional Solid Additive in Binary Organic Solar Cells with 17.3% Efficiency and High Reproductivity

Le Liu; Yuanyuan Kan; Ke Gao; Jianxiao Wang; Min Zhao; Hao Chen; Tonggang Jiu; Alex‐K.‐Y. Jen; Yuliang Li

doi:10.1002/adma.201907604

journal article Feb 05, 2020

Graphdiyne Derivative as Multifunctional Solid Additive in Binary Organic Solar Cells with 17.3% Efficiency and High Reproductivity

Le Liu

Yuanyuan Kan Ke Gao

Alex‐K.‐Y. Jen Yuliang Li

Advanced Materials Vol. 32 No. 11 · Wiley

View at Publisher Save 10.1002/adma.201907604

Abstract

AbstractMorphology tuning of the blend film in organic solar cells (OSCs) is a key approach to improve device efficiencies. Among various strategies, solid additive is proposed as a simple and new way to enable morphology tuning. However, there exist few solid additives reported to meet such expectations. Herein, chlorine‐functionalized graphdiyne (GCl) is successfully applied as a multifunctional solid additive to fine‐tune the morphology and improve device efficiency as well as reproductivity for the first time. Compared with 15.6% efficiency for control devices, a record high efficiency of 17.3% with the certified one of 17.1% is obtained along with the simultaneous increase of short‐circuit current (Jsc) and fill factor (FF), displaying the state‐of‐the‐art binary organic solar cells at present. The redshift of the film absorption, enhanced crystallinity, prominent phase separation, improved mobility, and decreased charge recombination synergistically account for the increase of Jsc and FF after introducing GCl into the blend film. Moreover, the addition of GCl dramatically reduces batch‐to‐batch variations benefiting mass production owing to the nonvolatile property of GCl. All these results confirm the efficacy of GCl to enhance device performance, demonstrating a promising application of GCl as a multifunctional solid additive in the field of OSCs.

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Details

Published: Feb 05, 2020
Vol/Issue: 32(11)
License: View

Authors

L

Le Liu

Chinese Academy of Sciences Qingdao 266101 P. R. China

Y

Yuanyuan Kan

University of Washington Seattle WA 98195‐2120 USA

K

Ke Gao

University of Washington Seattle WA 98195‐2120 USA

J

Jianxiao Wang

Chinese Academy of Sciences Qingdao 266101 P. R. China

M

Min Zhao

Chinese Academy of Sciences Qingdao 266101 P. R. China

H

Hao Chen

Chinese Academy of Sciences Qingdao 266101 P. R. China

T

Tonggang Jiu

Chinese Academy of Sciences Qingdao 266101 P. R. China

A

Alex‐K.‐Y. Jen

University of Washington Seattle WA 98195‐2120 USA; City University of Hong Kong Kowloon Hong Kong

Y

Yuliang Li

Chinese Academy of Sciences Beijing 100190 P. R. China

Funding

National Natural Science Foundation of China Award: 51672288

Office of Naval Research Award: N00014‐17‐1‐2201

Youth Innovation Promotion Association of the Chinese Academy of Sciences

Natural Science Foundation of Shandong Province Award: ZR2017ZB0313

Cite This Article

Le Liu, Yuanyuan Kan, Ke Gao, et al. (2020). Graphdiyne Derivative as Multifunctional Solid Additive in Binary Organic Solar Cells with 17.3% Efficiency and High Reproductivity. Advanced Materials, 32(11). https://doi.org/10.1002/adma.201907604

Graphdiyne Derivative as Multifunctional Solid Additive in Binary Organic Solar Cells with 17.3% Efficiency and High Reproductivity

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