关于举行阳明交通大学许千树教授学术报告的通知
报告题目：Carbazole based non-fullerene acceptors and cross-linkable fullerene derivatives for OPV application
报 告 人：许千树 教授，阳明交通大学
邀 请 人：黄飞 教授
报告时间：2023年6月14日（周三）上午10:00-11:30
报告地点：北区科技园1号楼发光国重502会议室
报告摘要：
In the first part of this presentation, several series of non-fullerene acceptors (NFAs) with dithienocyclopentacarbazole (DTC) and dithieno[3,2b]thiophenecyclopenta-carbazole (DTTC) cores were developed and combined with several p-type conjugated polymers, i.e. J71, PBDB-T and PBDB-TF to evaluate their performance in organic photovoltaics (OPVs). Compared with other fused-ring structure such as benzodithiophene, fluorine and cyclopentadithiophene, carbazole exhibits stronger electron-donating characteristic. Such characteristic results in the up-shifted lowest unoccupied molecular orbital (LUMO) of carbazole-based NFA in comparison with other NFAs, which is beneficial to afford higher Voc performance. Based on side-chain engineering, end group modification and conjugation extension of ladder core, the PCE value of the obtained OPV devices increases from 10 % to around 16 %. Also, ternary device is a robust approach to further elevate the PCE. A non-fullerene acceptor DTTC-4ClC9 is selected as the third component, in the PM6:BTP-BO-4Cl system can promote power conversion efficiency from 17.11% to a remarkable 18.21%, meanwhile, the open-circuit voltage, short-circuit current density, and fill factor are increased simultaneously.
In the second part, several fullerene derivatives containing cross-linkable styryl or oxetane groups will be presented. Both ladder-type conjugated polymers and n-type fullerene derivatives are used to fabricate high efficient bulk heterojunction OPVs. The cross-linkable fullerene derivatives are also used to fix the morphology of bulk heterojunction (BHJ) layer so as to improve the stability of PSCs. Finally, a cross-linkable fullerene derivative c-PCBSD, is applied as an interfacial modification layer on the surface of zinc oxide in the PBDB-TF:Y6-based OPV cells to enhance photovoltaic performance and long-term stability. The PCE of the OPV cells increased from 15.1 to 16.1%. In particular, such OPV cells exhibited much better stability under both thermal and air conditions because of the decreased number of interfacial defects and stable interfacial and active layer morphologies.
个人简介：
许千树教授于1987年获得美国Case Western Reserve University高分子化学博士学位，之后于1988年进入阳明交通大学应用化学系任教，1991年升任正教授，曾担任应用化学系主任、理学院副院长、研发长及副校长等要职，目前为终身讲座教授，并担任新世代功能性物质研究中心的主持人。主要研究领域为共轭高分子合成，应用在有机发光二极管、薄膜晶体管及有机太阳能电池，共发表国际期刊论文超过338篇，获得国内外专利38项，曾经获得三次科技部杰出研究奖及特约和资深特约研究奖，于2006年获得台法科技奖，2007年获得东元奖及侯金堆杰出荣誉奖，2008年荣获了教育部学术奖及亚太材料学院院士，2011年获得经济部奈米产业科技菁英奖，2014年获得日本高分子学会国际赏，2016年获得有庠科技讲座，2019年获得美国国际显示学会(SID) Slottow-Owaki Prize，2020年荣获教育部国家讲座主持人，以及2022年荣获斐陶斐荣誉学会杰出成就奖。
许教授在国际高分子学术界享有盛誉，代表台湾担任国际纯粹与应用化学联盟(IUPAC)高分子领域的国家代表，以及太平洋高分子联盟之理事，也曾担任太平洋地区高分子联盟(PPF)会长、化学会理事长及高分子学会理事长，担任四个重要国际高分子期刊(Macromolecules、ACS Macro Letters、Polymer、J. Polymer Science, Polymer Chemistry)等之编辑或咨询委员，学术表现极为优异。
