讲座预告 | 香港城市大学Andrey L. Rogach教授：Synthesis, optical spectroscopy, and applications of light-emitting colloidal nanomaterials

2026-02-03 10

报告人：Andrey L. Rogach 教授（香港城市大学）

邀请人：夏志国教授

报告时间：2026年2月6日10:00-12:00

报告地点：北区科技园1号楼W301中心会议室

报告摘要：

This lecture will provide an overview on synthesis, optical spectroscopy, and applications of light-emitting colloidal nanomaterials recently (2024-2025) synthesized in our labs, which include copper indium chalcogenide nanorods [1] and HgTe quantum dots [2] emitting over the broad visible and infrared spectral range, as well as different kinds of perovskite nanocrystals [3-5]. I will highlight their photophysical properties studied by advanced optical spectroscopy techniques, and demonstrate their emerging applications ranging from light-emitting diodes [3,4] to infrared photodetectors [1,2] and photocatalytic CO2 reduction [5,6].

参考文献

1. A. S. Portniagin, A. A. Sergeev, K. A. Sergeeva, S. Wang, Z. Li, J. Ning, C. C. S. Chan, S. V. Kershaw, X. Zhong, K. S. Wong, A. L. Rogach. Removing Cadmium Impurities from Cation-Exchange-Derived CuInSe2/CuInS2 Nanorods for Enhanced Infrared Emission and Photodetection. Adv. Funct. Mater. 2024, 34, 2400942.

2. K. A. Sergeeva, S. Hu, A. V. Sokolova, A. S. Portniagin, D. Chen, S. V. Kershaw, A. L. Rogach. Obviating Ligand Exchange Preserves the Intact Surface of HgTe Colloidal Quantum Dots and Enhances Performance of Short Wavelength Infrared Photodetectors. Adv. Mater. 2024, 36, 2306518.

3. J. Zhang, J. Wang, L. Cai, S. Wang, K. Wu, B. Sun, W. Zheng, S. V. Kershaw, G. Jia, X. Zhang, A. L. Rogach, X. Yang. Fine-Tuning Crystal Structures of Lead Bromide Perovskite Nanocrystals through Trace Cadmium(II) Doping for Efficient Colour-Saturated Green LEDs. Angew Chem. Int. Ed., 2024, 63, 202403996.

4. Q. Huang, W. Yin, B. Gao, Q. Zeng, D. Yao, H. Zhang, Y. Zhao, W. Zheng, J. Zhang, X. Yang, X. Zhang, A. L. Rogach. Enhancing Crystal Integrity and Structural Rigidity of CsPbBr3 Nanoplatelets to Achieve a Narrow Color-Saturated Blue Emission. Light Sci & Appl., 2024, 13, 111.

5. Md. S. Hassan, P. Basera, B. Khan, A. S. Portniagin, K. Vighnesh, Y. Wu, D. A. Rusanov, M. Babak, J.-H. He, M. Bajdich, A. L. Rogach. Bidentate Lewis Base Ligand-Mediated Surface Stabilization and Modulation of Electronic Structure of CsPbBr3 Perovskite Nanocrystals. JACS 2025, 147, 862-873.

6. R. Ahmad, Y. Zhang, J. Navrátil, P. Błoński, L. Zdražil, S. Kalytchuk, A. Naldoni, A. L. Rogach, M. Otyepka, R. Zboril, Š. Kment. Band Engineering in Iron and Silver Co-Doped Double Perovskite Nanocrystals for Selective Photocatalytic CO2 Reduction. J. Mater. Chem. A 2024, 12, 23035-23048.

报告人简介：

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Andrey L. Rogach is a Yeung Kin Man Chair Professor in Photonics Materials at the Department of Materials Science and Engineering, and the Founding Director of the Centre for Functional Photonics (CFP) at City University of Hong Kong. He received his Diploma in Chemistry (1991, with honors) and Ph.D. in Physical Chemistry (1995) from the Belarusian State University in Minsk, and worked as a postdoc and then as a staff scientist at the Institute of Physical Chemistry of the University of Hamburg, Germany from 1995 to 2002. From 2002–2009 he held a tenured position of a lead staff scientist at the Department of Physics of the University of Munich, Germany. He joined City University of Hong Kong as a Full Professor in 2009 and has been advanced to Chair Professor in 2012. His research focuses on synthesis, assembly and optical spectroscopy of colloidal semiconductor and metal nanocrystals and their hybrid structures, and their use for energy-related and optoelectronic applications. He authored over 600 scientific publications with an h-index of 154 {Google Scholar} in these fields that have been extensively (over 85,000) cited, which ranked him as Highly Cited Researcher (Clarivate Analytics) in Cross-Field or Materials Science every year since 2018. Andrey Rogach is a Foreign Member of the Academia Europaea, and a Fellow of the Electromagnetic Academy, USA. He served as an Associate Editor of ACS Nano in 2011-2023.