Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors-Reference-Cited by-同舟云学术

Precisely Manipulating Molecular Packing via Tuning Alkyl Side‐Chain Topology Enabling High‐Performance Nonfused‐Ring Electron Acceptors

Published:2024-01-22 Issue:10 Volume:63 Page:
ISSN:1433-7851
Container-title:Angewandte Chemie International Edition
language:en
Short-container-title:Angew Chem Int Ed

Author:

Han Ziyang¹,Zhang Cai'e¹,He Tengfei²,Gao Jinhua¹,Hou Yuqi¹,Gu Xiaobin¹,Lv Jikai¹,Yu Na³,Qiao Jiawei⁴,Wang Sixuan¹,Li Congqi¹,Zhang Jianqi⁵,Wei Zhixiang⁵,Peng Qian⁶,Tang Zheng³,Hao Xiaotao⁴,Long Guankui²,Cai Yunhao¹,Zhang Xin¹^ORCID,Huang Hui¹^ORCID

Affiliation:

1. College of Materials Science and Opto-Electronic Technology Center of Materials Science and Optoelectronics Engineering CAS Center for Excellence in Topological Quantum Computation CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 China

2. School of Materials Science and Engineering National Institute for Advanced Materials, Renewable Energy Conversion and Storage Center (RECAST) Nankai University Tianjin 300350 China

3. Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China

4. School of Physics School of Physics Shandong University Jinan Shandong 250100 China

5. Center for Excellence in Nanoscience (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS) National Center for Nanoscience and Technology Beijing 100190 China

6. School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 China

Abstract

AbstractIn the development of high‐performance organic solar cells (OSCs), the self‐organization of organic semiconductors plays a crucial role. This study focuses on the precisely manipulation of molecular assemble via tuning alkyl side‐chain topology in a series of low‐cost nonfused‐ring electron acceptors (NFREAs). Among the three NFREAs investigated, DPA‐4, which possesses an asymmetric alkyl side‐chain length, exhibits a tight packing in the crystal and high crystallinity in the film, contributing to improved electron mobility and favorable film morphology for DPA‐4. As a result, the OSC device based on DPA‐4 achieves an excellent power conversion efficiency of 16.67 %, ranking among the highest efficiencies for NFREA‐based OSCs.

Funder

National Natural Science Foundation of China

National Key Research and Development Program of China

Youth Innovation Promotion Association of the Chinese Academy of Sciences

Publisher

Wiley

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/anie.202318143

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