学术报告通知

报告题目：Doping and Defect Chemistry of Organometal Halide Perovskite

报 告 人：余晖 博士 香港中文大学

报告时间: 2016 年12 月27 日（星期二）上午 10 :00-11:00

报告地点: 中南大学南校区先进材料超微结构与超快过程研究所211

欢迎大家参加！

报告摘要：

Solution-processed photovoltaics (PVs) have attracted increasing attention of the

scientific and industrial communities due to the light-weight, low-cost and manufacturing

flexibility of the technology since 1990s. In the past twenty years, people have made great

effort to improve the power conversion efficiency of solution-processed photovoltaics.

Recently, a promising class of photovoltaic (PV) materials, organometal halide perovskites

with a chemical formula of AMX3, has received a lot of attention due to their excellent

electronic properties, low temperature processability, and high power conversion efficiency

(PCE).

Perovskite solar cells have been improved at a rapid pace and have already reached ~

22% PCE within four years of development due to the deeper understanding on the

fundamental science of the materials and devices, such as the formation mechanisms of

perovskite materials, the correlation between microstructure and properties, and interface

engineering. While doping as the most important technique in conventional semiconductor

industry has not been systematically inspected in organometal halide perovskite materials.

Here, I’d like to introduce my ideas and current work about doping and defect chemistry in

organometal perovskite materials.

报告人简介：

余晖博士，2008年7月在中南大学材料科学与工程学院获得学士学

位 ，2012年1月在清华大学材料科学与工程系获得硕士学位，2016

年8月，在香港中文大学电子工程系获得博士学位。目前在香港中

文大学电子工程系继续从事研究工作。主要研究兴趣包括薄膜太

阳能电池、量子点红外探测器件、柔性电子器件（柔性太阳能电

池，柔性电池以及柔性传感器）、热界面材料等。