应化学化工学院、稀土功能材料教育部工程研究中心、甘肃省有色金属化学与资源利用重点实验室邀请，瑞典皇家理工学院应用物理系 王立刚博士来我校交流并做学术报告，欢迎感兴趣的师生参加。

报 告 人：王立刚博士

报告题目：Classical Optoelectronic and Optical Quantum Information Devices

报告时间：2023年6月9日（星期五）15: 00

报告地点：第二化学楼201报告厅

报告人简介：

Dr. Ligang Wang is currently a postdoc researcher of Prof. Val Zwiller’s group at KTH, Royal Institute of Technology, Sweden. He received PhD from Peking University under joint-supervision of Prof. Chun-Hua Yan (严纯华) and Huanping Zhou (周欢萍) in 2019. He was awarded the Newton International Fellowship by the Royal Society (UK) and joined Prof. Sir Richard Friend’s group at Cavendish Laboratory (Department of Physics), University of Cambridge, in Nov. 2019. Dr. Wang and his cooperators’ research was selected as "Top10 Science Advances in China, 2019" and also a question of Gaokao. His current research is focused on developing key devices of optical quantum information, including quantum emitter (based on QDs, perovskite, rare earth), quantum memory (based on rare earth doped crystals), superconducting nanowire single photon detectors (based on NbN, NbTiN, MgB2, YBCO), etc. These devices are mainly planned to be used in the fields of optical quantum computing, quantum communication, integrated photonics, biological imaging, etc.

报告内容：

Classical optoelectronic and optical quantum devices for energy and information industry have being developed in the past few years. Among them, quantum emitters (QEs) and quantum detectors are key components for optical quantum information. We are developing new QEs based on rare earth, quantum dots and perovskite for emission of anti-bunched single photons or entangled photon pairs and new quantum detectors based on nanowires of superconducting materials such as NbTiN, MgB2, YBCO for detecting single photons in Vis-IR range. As to classical optoelectronic devices for energy or information, selective n-phase emission in nano-perovskite LEDs and new efficiency record of 26.8% are achieved. Efficient and stable perovskite solar cells were developed by solving the intrinsic degradation of Pb-I perovskite into Pb0 & I0 by incorporating an “redox shuttle”.