孙良峰博士.D.

副教授

物理 & 天文学部门
115 理论物理ical 科学 Laboratory Building
419.372.7245
lsun@newtownnewcomers.com

传记事实:

Joined the faculty in 2011
Ph.D., University of Texas at Austin (2006)
M.S., Chinese Academy of Science (2000) 

火博体育网站兴趣:

The research of Sun group is focused on the photophysics of nanomaterials including nanosheets, 纳米棒, 量子点, 还有碳点. The novel properties of the nanomaterials originate at the quantum confinement at the nanometer scale. 例如, tunable and pure-color light emission can be achieved by simply changing the size of 量子点, which is the science behind the new quantum-dot LED (QLED) TVs made by Samsung. The current research in Sun group aims at the anisotropic nanomaterials with emphasis on nanosheets. The anisotropic confinement of the exciton in nanosheets results in new properties different from isotropic 量子点, such as slower Auger processes, giant oscillator strength transition, high photoluminescence quantum yield, and low threshold lasing. These new photophysics properties are studied using time-resolved laser spectroscopy and other material characterization methods including electron microscopy, XRD, 红外光谱, 拉曼光谱学.

The students in Sun group will learn and master many experimental techniques for nanomaterial research, including electron microscopy (such as TEM and SEM), UV-Vis-IR光谱学, 激光技术, synthesis of nanostructured materials, optoelectronic device fabrication and testing. In the process of research, they will participate in planning future research and setting up experimental apparatus. In such a way, they will gain significant critical-thinking and problem-solving skills.

选择出版物:

1. Wenhui Wan, Yugui Yao, Liangfeng太阳, Cheng-Cheng Liu, Fan Zhang, "Topological, Valleytronic, and Optical Properties of Monolayer PbS", 先进材料 29, 1604788 (2017)
2. Simeen Khan, Zhoufeng Jiang, Shashini M. Premathilka, Antara Antu, Jianjun Hu, Andrey A. Paul J . Voevodin. 兰迪·罗兰. Ellingson, Liangfeng太阳, "Few-Atom-Thick Colloidal PbS/CdS Core/Shell Nanosheets", 材料化学28, 5342 (2016)
3. Zhoufeng Jiang, Ghadendra B. Shashini M .班达里. Premathilaka, Simeen Khan, Douglas M. Dimick, Cody Stombaugh, Angelic Mandell, Yufan He, H. Peter Lu and Liangfeng太阳, "Growth of colloidal PbS nanosheets and the enhancement of their photoluminescence", 理论物理. 化学. 化学. 理论物理. 17, 23303 (2015)
4. Ghadendra B. Bhandari, Kamal Subedi, Yufan He, Zhoufeng Jiang, Matthew Leopold, Nick Reilly, H. Peter Lu, Alexey T. Zayak and Liangfeng太阳, "Thickness-Controlled Synthesis of Colloidal PbS Nanosheets and Their Thickness-Dependent Energy Gaps", 材料化学 26, 5433 (2014)
5. L. 太阳,我. J. 崔D. Stachnik,. C. Bartnik B.-R. Hyun T. Hanrath G. G. 马利亚拉斯和F. W. 明智的” Bright infrared quantum-dot light-emitting diodes through inter-dot spacing control ", 自然纳米技术 7, 369 (2012)

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