时间：2015年5月21日（星期四）上午10：30
地点：北区科技园国重5楼会议室

报告摘要：
       Carrier (electron and hole) transport layers are important components in organic/inorganic optoelectronics such as organic solar cells (OSCs), perovskite solar cells, dye sensitized solar cells, organic light emitting diodes (OLEDs), etc which can favor the efficient transport of carriers between the photoactive layer and electrode as well as high optical transparency. Transition metal oxides are promising materials for carrier transport layers because of their good electrical properties, stability, and optical transmission. We propose and demonstrate several low-temperature solution-processed approaches for forming transparent and efficient metal oxide-based carrier transport layers including electron and hole transport layers [1-6]. With the incorporation of metal nanoparticles [7-10], the electrical and optical properties can be enhanced. The interesting features of the novel carrier extraction layers are low temperature (i.e. low cost), solution process (i.e. large area) and water free (i.e. compatible to most devices) for high performance optoelectronics [1-10]. With the knowledge of solution processed of organic and inorganic materials, we have recently proposed different approaches such as vacuum-Assisted thermal annealing of CH3NH3PbI3 for highly stable and efficient perovskite SCs with power conversion efficiency (PCE) of 14.5% and no hysteresis [11] and also demonstrated single junction OSCs with PCE of 10.5%.

附报告人简介：
       蔡植豪博士（Dr. Wallace C.H. Choy），香港大学副教授//博士生导师，美国电机及电子学工程师学会(IEEE)高级会员(Senior member)和英国特许工程师, 多年从事半导体光电子器件的理论与实验研究，曾先后在加拿大国家研究中心、美国伊利诺斯大学、美国加州硅谷的日本富士通化合物半导体公司工作。现在是香港大学电子工程系副教授，承担多项研究课题，组建独立实验室和研究组，主要从事有机小分子/聚合物,钙钛矿,和其它半导体薄膜太阳能电池以及发光二极管研究、纳米材料与器件包括材料生长、器件制备及其光电特性等的研究。到目前为止，在光电材料与器件方面发表论文140篇，会议论文140余篇（详情：http：//scholar.google.com.hk/citations?user=GEJf9dAAAAAJ），论文被他人引用3610余次 (H-index; 28)，国际学术会议邀请报告20余次，2009及 2011年暑假访问Prof. Yang Yang UCLA (加州大学洛杉矶分校), 研究组，2010暑假访问Prof. Karl Leo, IAPP,德累斯顿技术大学, Dresden, Germany, 2013暑假访问Prof./Sir Richard Friend, Cavendish Lab, 剑桥大学。
       蔡植豪博士根据汤姆森路透的基本科学指标（ESI）2014被认定为前1％引用最多的科學家(Top 1% most cited scientist)。他是Nature Publishing Group-Scientific Reports的編委會成員,OSA Journal of the Optical Society of America B (JOSA B, 美国光学学会OSA杂志创办于1917年)的专题主编辑和IEEE Photonic Journals的副主编。