Stable and uniform self-assembled organic diradical molecules for perovskite photovoltaics-Reference-Cited by-同舟云学术

Stable and uniform self-assembled organic diradical molecules for perovskite photovoltaics

Published:2025-07-10 Issue:6756 Volume:389 Page:195-199
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Wu Wenping¹²^ORCID,Gao Han³^ORCID,Jia Lingbo⁴^ORCID,Li Yuan⁵^ORCID,Zhang Dezhong¹^ORCID,Zhan Hongmei¹^ORCID,Xu Jianan³^ORCID,Li Binhe¹^ORCID,Geng Ziran¹^ORCID,Cheng Yanxiang¹^ORCID,Tong Hui¹^ORCID,Pan Yanxiong¹^ORCID,Liu Jun¹^ORCID,He Yongcai⁴^ORCID,Xu Xixiang⁴^ORCID,Li Zhenguo⁴^ORCID,He Bo⁴^ORCID,Zhou Min³^ORCID,Wang Lixiang¹^ORCID,Qin Chuanjiang¹²^ORCID

Affiliation:

1. State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.

2. School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, China.

3. State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.

4. LONGi Central R&D Institute, LONGi Green Energy Technology Co., Xi’an, China.

5. Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China.

Abstract

Organic self-assembled molecules (SAMs), which are widely used in perovskite solar cells (PSCs), should exhibit enhanced performance to support the ongoing advancement of perovskite photovoltaics. We designed diradical SAMs through a coplanar conjugation of a donor-acceptor strategy to facilitate hole transport across the SAMs. The diradical SAMs exhibited high photothermal and electrochemical stability as well as improved assembly uniformity and large-area solution processability attributed to molecular steric hindrance design. We used an advanced scanning electrochemical cell microscopy–thin-layer cyclic voltammetry technique to accurately determine the carrier transfer rate, stability, and assembly properties of the SAMs. Ultimately, the efficiencies of the PSCs exceeded 26.3%, minimodules (10.05 cm 2 ) reached 23.6%, and perovskite-silicon tandem devices (1 cm 2 ) surpassed 34.2%. The PSCs maintained >97% after 2000 hours tracking at 45°C.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adv4551

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