报告题目：Recent progress inperovskite solar cells at UCLA
报告人： Yang Yang 教授
Department of Materials Science andEngineering, University of California,
Los Angeles, United States
地点： 独墅湖校区701-B501
时间： 2016年6月10日（星期五），上午9:30
摘要：
Perovskitephotovoltaic has been witnessed with the rapid increase in power conversionefficiency (PCE) recently due to the superior properties of the perovskitematerials suitable for a wide spectrum of optoelectronic applications. In viewof recent advances in perovskite solar cell research, hysteresis, stability,PCE, and scale-up fabrication are the most attracting topics among thecommunity. We have been making the efforts from the pursuit of relevantfundamental device physics and deep materials understanding to address theseissues, including 1) investigation of degradation mechanism of perovskite solarcells, 2) analysis of defects in the film and development of passivationtechniques, 3) study of ion migration upon device operation, and 4) implementof suitable materials into the devices. It ultimately leads to a high efficientand stable perovskite solar cell with no apparent hysteresis. In addition tothe most concerned issues as mentioned above, we also fabricated bendableperovskite solar cells, which helps to expand the horizon of future applicationof this promising photovoltaic materials.
简历：
Professor Yang is the Carol and Lawrence E. Tannas Jr. ChairProfessor of Materials Science and Engineering at UCLA. He is a materialsphysicist with expertise in the fields of organic electronics,organic/inorganic interface engineering, and the development and fabrication ofrelated devices, such as photovoltaic cells, LEDs, and memory devices. His notable contributions to the fieldof organic photovoltaics (OPV) are enhanced understanding of polymer morphologyand its influence on device performance; the invention of the inverted organicsolar cell; the inverted tandem solar cell; and transparent OPV devices. Since2007, he has taken the lead in the creation of several world record cells inOPV, with a recent efficiency of 10.6% - 11.6% PCE via tandem structure. Inaddition to organic solar cells, his group is also heavily involved in thedevelopment of liquid-processable CIGS/CZTS photovoltaics. His group hasachieved approximately 11.2% PCE using a CISS absorber layer deposited from asolution- phase precursor system. Recently, his group has entered the field ofperovskite solar cell, and he demonstrated 19.3% power conversion efficiency byinterface engineering and improved crystal growth process.
Professor Yang has as published more than 300 peer-reviewedpapers (including book chapters); ~60 patents (filed or issued), and given 150invited/plenary talks. His H-Index is 122 as of May 2016 (from Google Scholar).His citation has more than 62,000 times. He is the Fellow of APS, MRS, Royal Society of Chemistry (FRSC), EMAcademy, and SPIE. Yang was named to beone of the most influenced scientific mind in 2016 by Thomason Reuters. He is also the recipient of the AchievementAward from CESASC (Chinese American Scientists and Engineers in SouthernCalifornia).
(报告联系人：李永舫 院士)