报告题目：New Materials for Low-cost Photovoltaics and Photocatalysis
报 告 人：Prof. Neil Robertson (JMCC期刊副主编，英国爱丁堡大学化学系国际交流主管)
邀 请 人：韩宏伟 教授
Sunlight provides a clean and renewable source of energy and we are exploring new materials to harvest and convert solar energy towards both photovoltaic and photocatalytic applications as follows.
(i) Perovskite solar cells are one of the hottest areas in photovoltaics at present and we have studied several series of hole-conducting materials to address limitations in the cost, stability and reproducibility of the current state-of-the-art materials. The talk will describe the synthesis, characterisation and application of triarylamine based hole-transport materials, describing the advantages and disadvantages of small-molecule, starburst and polymeric materials.
(ii) Contamination of drinking water sources is becoming increasingly problematic in the modern world. Photocatalysis has received much attention as a potential method of removing small amounts of highly toxic organic and inorganic compounds from contaminated drinking water in recent years. While titanium dioxide (TiO2) is the most popular photocatalytic material to date, fast charge recombination reduces the photocatalytic efficiency significantly and only UV light is absorbed. We have developed heterojunction photocatalysis able to overcome the limitations of TiO2 by providing visible light harvesting and an interface which allows charge separation to occur. In addition to structural and electronic characterisation of the films, we apply the system to the photocatalytic degradation of organic molecules, model wastewater and bacteria.
CV of Invited Speaker：
Neil Robertson教授为英国爱丁堡大学化学系分子材料学首席教授，世界著名材料化学、无机化学专家，在分子性导体、分子性磁体、光电材料、光催化材料、太阳能电池、场效应管等方面有很深入的研究和重要的学术贡献。在JACS, Angewandte Chemie,AEM, AFM, Dalton Transactions等杂志上发表论文150多篇。担任Journal of Materials Chemistry C杂志副主编，现任爱丁堡大学化学系国际交流主管。