南京大学邓正涛教授学术报告通知

发布者:材料科学与工程学院、信息科学与纳米技术研究院 发布时间:2019-05-23浏览次数:24

报告题目:Controlled synthesis of luminescent perovskite nanocrystals for optical applications/发光钙钛矿纳米晶体的可控合成及光学应用

报 告 人:邓正涛教授

单   位南京大学现代工程与应用科学学院

报告时间:2019年52214:00-15:00

报告地点:材料学科楼4楼413大会议室


报告摘要:

Metallic halide perovskite nanocrystals have the advantages of highly tunable absorption and emission spectrum, narrow full width to half maximum (FWHM), high photoluminescence quantum yield (PL QY up to 100%), simple and low-cost liquid phase synthesis, etc., and have become the ideal luminescent materials for high-definition displays and other optical applications. However, the stability of perovskite halide nanocrystals under light, heat, moisture, oxygen and other aging conditions is still not satisfactory. In this talk, I will report several recently developed synthetic strategies for nanocrystal-polymer composite films to overcome these stability limitations and discuss their practical applications in wide color gamut liquid crystal displays. white LED lighting, and luminescent solar concentrators (LSCs).

金属卤化物钙钛矿纳米晶体具有高度可调的吸收和发射光谱,窄的半峰宽,高的光致发光量子产率(可达100%),简单和低成本的液相合成策略等优点,在高性能液晶显示器件等光学领域有望成为理想的发光材料。然而,钙钛矿卤化物纳米晶在实际应用中的光、热、湿、氧等老化条件下的稳定性仍不理想。在本报告中,我将介绍最近我们团队发展起来的纳米晶体聚合物复合薄膜的一些合成策略,以及如何提高其稳定性能,并讨论其在广色域液晶显示器件,白色发光二极管照明,发光太阳能聚光器中的应用。


报告人简介:

Zhengtao Deng is a professor at the College of Engineering and Applied Sciences of the Nanjing University (NJU). He received his Ph.D. in Physical Chemistry from the University of Chinese Academy of Sciences (UCAS) in 2007. From 2007 to 2014, he worked on luminescent nanocrystals at University of Arizona (UA), Arizona state university (ASU), and MIT in the United States. In 2014, he was selected into the national overseas high-level talents program and joined NJU faculty. At present, his research is focused on the controllable preparation of the luminescent quantum materials and their optical applications in displays, lighting and solar cells. See more information at: http://eng.nju.edu.cn/3e/50/c5183a212560/page.htm.

邓正涛,南京大学工程与应用科学学院教授。2007年获中国科学院大学物理化学博士学位。从2007年到2014年,分别在美国亚利桑那大学(UA)、亚利桑那州立大学(ASU)和麻省理工学院(MIT)从事发光纳米晶体材料的研究。2014年入选国家海外高层次人才引进计划,入职南京大学。目前,他的研究主要集中在发光量子材料的可控制备及其在显示器、照明和太阳能电池中的光学应用。更多信息可访问http://eng.nju.edu.cn/3e/50/c5183a212560/page.htm