Grain boundary engineering of organic semiconductor films in organic transistors
Yanpeng Wang,
Shougang Sun,
Yinan Huang,
Yao Fu,
Jiannan Qi,
Kai Tie,
Zhongwu Wang,
Fei Jiao,
Rongmei Si,
Xiaosong Chen,
Liqiang Li,
Wenping Hu
Affiliations
Yanpeng Wang
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Shougang Sun
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Yinan Huang
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Yao Fu
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Jiannan Qi
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Kai Tie
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Zhongwu Wang
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Fei Jiao
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Rongmei Si
Department of Materials Science and Engineering Tianjin College University of Science and Technology Beijing TianjinChina
Xiaosong Chen
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Liqiang Li
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Wenping Hu
Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry Institute of Molecular Aggregation Science School of Science Tianjin University TianjinChina
Abstract Organic field‐effect transistors (OFETs) show great application potential in organic electronic and optoelectronic fields due to their excellent mechanical flexibility, low cost, and solution processing. However, grain boundaries (GBs) disrupt the aggregation state of organic semiconductor (OSC) films and hinder electrical performance and stability, which limits the application of OFETs. Besides, the sensitive nature of GBs is widely used in sensing, but detailed descriptions of the GBs are scarce. This review aims to fill this knowledge gap. The role of GBs and their effect on the performance and stability of OFETs are analyzed, followed by a detailed summary of the characterization of GBs. Then, strategies for suppressing the negative effects of GBs and utilizing the sensitive nature of GBs for application are proposed. Finally, potential research directions for GBs in OFETs are discussed.
