关于举行美国德州农工大学孙国荣博士学术报告的通知

报告题目：Topological Design of Hole Transporting Polymers for Highly Anisotropic Alignment in Solution Processed Thin Films

报 告 人：孙国荣 博士（美国德州农工大学）

报告时间：2019年03月25日（周一）上午10:00

报告地点：北区发光材料与器件国重 502会议室

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摘要：

In modern organic electronics and optoelectronics, anisotropic packing/alignment of charge transport functionalities has been recognized as a crucial factor for construction of high-performance devices. Depending upon the inherent charge transport direction within a device, molecular-scale “edge-on” orientation of charge-transporting hosts is favorable for organic field-effect transistors, while the “face-on” orientational counterpart is preferential for organic light-emitting diodes (OLEDs) and organic photovoltaics.

Solution-cast polymer thin films for hole transport layer (HTL) devices in OLED display applications have been proposed in recent years.  We have developed a novel hole transporting molecular bottlebrush polymer that can achieve unprecedented high degrees of anisotropic “face-on” alignment of the nonplanar triphenylamine hole transport moieties in the solution-cast HTL film.  The structure-property relationship between obtained anisotropic data with polymer topology, monomer selection, and film processing effect will be presented in detail.  Preliminary data indicates facile charge transport is commensurate with a high degree of anisotropic alignment, which demonstrates the topological design strategy is of great usefulness for solution-processable HTL films with high charge mobilities.

个人简介：

Guorong Sun received his Ph.D. in polymer chemistry in 2009 from Washington University in St Louis under the direction of Professor Karen L. Wooley.  He continued his postdoctoral training with Prof. Wooley and presently works as a Senior Scientist in the Wooley group at Texas A&M University.  His current research focuses on the exploration of intricate molecular bottlebrush-based electronic materials, as well as the developments of advanced nanomaterials for imaging guided cancer therapy.