Welcome to Prof. Rogach
Lab at CityUHK
Welcome to the official website of Prof. Andrey Rogach, Yeung Kin Man Chair Professor in Photonics Materials at the Department of Materials Science and Engineering at City University of Hong Kong.
Our research group is dedicated to advancing chemical synthesis and application of nanomaterials. Using colloidal chemistry approaches, we synthesize nanocrystals with variable sizes, shapes, and compositions. We focus on the infrared-emitting quantum dots, as well as carbon dots and perovskites for energy harvesting and light-emitting applications.
Explore these pages to discover our main research areas, read the latest news and publications, and learn about the opportunities to join our team. If you have any questions or are interested in scientific collaboration, feel free to contact us by sending an email.
Our Work At a Glance
| Apply advanced materials design to synthesize quantum dots, carbon dots, perovskites, nanoclusters, and more | |
| Enable green energy solutions by fabricating solar cells, solar concentrators, fuel cells, electro- and photocatalysts | |
| Develop the field of photonic devices, such as infrared photodetectors and highly efficient visible LEDs | |
| Explore fundamental properties of nanoparticles by changing their shape and composition |
Recent News & Highlights
Workshop on "Nano, Optoelectronics, and Photonics"
Great talks by the Distinguished Visiting Professor of CityUHK Maksym Kovalenko (Professor at ETH Zurich), Dr. Maryna Bodnarchuk (Group Leader at EMPA) and colleagues from several Hong Kong universities. Thank you for this fruitful and curious event.
June 2025
Dr. Ye Wu becomes Associate Professor in Nanjing
Dr. Ye Wu who has been working as a postdoc in our group for the last 2 years successfully finishes his current research and moves to Nanjing to take up the Associate Professor position at the School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications. We will miss you, and good luck in your future career!
March 2025
New approach boosts efficiency of perovskite light-emitting diodes
Our group has developed a novel method to produce FAPbBr3 perovskite films with an ultralow trap density of 1.2×1010 cm−3, significantly enhancing the performance of LEDs. This advancement resulted in green perovskite LEDs achieving a brightness of approximately 312,000 cd/m2, a half-lifetime of 350 hours, and a power conversion efficiency of 15.6%. Read more in our fresh Nature Comm. paper "Ultralow trap density FAPbBr3 perovskite films for efficient light-emitting diodes and amplified spontaneous emission".
March 2025
2023–2024 in Numbers
35+
papers published
3
projects started
5
PhD graduated
15+
conferences joined
4
scholarships won
Latest Publications
- A. P. Litvin, J. Guo, J. Wang, X. Zhang, W. Zheng, A. L. Rogach. Systematic Study of the Synthesis of Monodisperse CsPbI3 Perovskite Nanoplatelets for Efficient Color-Pure Light Emitting Diodes. Small, 2025, 21, 2408422.
- D. Chen, A. A. Sergeev, N. Zhang, L. Ke, Y. Wu, B. Tang, C. K. Tao, H. Liu, G. Zou, Z. Zhu, Y. An, Y. Li, A. Portniagin, K. A. Sergeeva, K. S. Wong, H.-L. Yip, A. L. Rogach. Ultralow Trap Density FAPbBr3 Perovskite Films for Efficient Light-Emitting Diodes and Amplified Spontaneous Emission. Nature Comm. 2025, 16, 2367.
- M. D. Miruschenko, K. D. Kosolapova, I. A. Aleinik, L. N. Borodina, A. A. Vedernikova, A. V. Sokolova, M. A. Sandzhieva, A. M. Mitroshin, A. V. Yakimansky, A. V. Koroleva, E. V. Zhizhin, S. A. Cherevkov, M. Langer, M. Otyepka, E. V. Ushakova, A. L. Rogach. Functionalization of Hydrophilic and Amphiphilic Carbon Dots with Polyethylene Glycol for Electroluminescent Devices. Small Struct. 2025, 6, 2400528.