From July 29 to 31, 2022, The 4th National Conference on Organic Field-Effect Transistors & The 2nd International Conference on Flexible & Printed Optoelectronic Materials and Devices (OFET-4 & ICFPOE-2) was successfully held in Changsha, Hunan Province, China. Conference on Flexible & Printed Optoelectronic Materials and Devices (OFET-4 & ICFPOE-2) was successfully held at the Hyundai Kale Hotel in Changsha, Hunan Province. Prof. Huang Hui's team of six students (Wei Yanan, Chen Hao, Wang Song, Li Congqi, Gu Xiaobin, Zhang Meng) and two postdocs (Gao Jinhua and Li Zijie), led by Mr. Huang Hui, Mr. Shi Qinqin and Mr. Zhang Peasant, attended the conference.

 During the meeting, Mr. Huang Hui gave an invited presentation entitled "Theory, Characterization and Application Study of Non-Covalent Conformation Locks", Mr. Shi Qinqin gave an oral presentation entitled "The Green Synthetic Methods for Organic Semiconductors", and other students presented their results in the form of poster presentations.

 The conference will focus on the two themes of "field-effect transistors" and "flexible printed optoelectronic materials and devices", with the aim of academic exchange, discussing the latest progress of domestic and foreign research, opportunities and challenges, as well as future development directions, enhancing the communication and cooperation between domestic and foreign colleagues in the field of field-effect transistors and flexible printed optoelectronic materials and devices, and jointly promoting the cooperation and industrialization of field-effect transistors and flexible printed optoelectronic materials and devices.

 In addition, 8 RSC-JMCC Outstanding Oral Presentation Awards and 12 IOP Outstanding Poster Awards were selected by the expert group at the end of this meeting. Ms. Qinqin Shi of the group won the Outstanding Oral Presentation Award and Mr. Hao Chen won the Outstanding Poster Award.