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
What can we learn from earlier Pb- and Hg-based optoelectronics on the way to greener IR materials?
A joint perspective article published in Nano Letters raises an important question in the field of nanocrystal-based IR sensors: "What the Inheritance of IV–VI and II–VI Semiconductors Teaches Us for the Quest of Heavy Metal-Free Nanocrystals Dedicated to Infrared Detection". Read further to learn about the legacy of Pb/Hg-based IR sensors on the way towards more ecological narrow-bandgap semiconductor devices.
April 2026
Metastable wurtzite HgTe nanocrystals with superior electroluminescence properties
A joint paper in a collaboration with the group of Emmanuel Lhuillier entitled "Confining Metastable Wurtzite HgTe for Infrared Optoelectronics" has been published in ACS Nano. The article features first-ever determination of the electronic structure of wurtzite HgTe nanocrystals with spherical and nanorod morphology and demonstrates their strong potential in optoelectronic devices.
March 2026
Building the foundation of energy research
Our paper from early 2025 entitled "Green Spin Light-Emitting Diodes Enabled by Perovskite Nanocrystals in Situ Modified with Chiral Ligands" has been selected for inclusion in the Anniversary Collection "10 Years of ACS Energy Letters: 10 Topics that Defined the Decade" by the ACS Energy Letter editorial team. We are proud of this achievement and looking forward to new developments in the field.
January 2026
2024–2025 in Numbers
65+
papers published
2
projects started
4
PhD graduated
20+
conferences joined
3
scholarships won
Latest Publications
- S. Kalytchuk, T. Malina, F. Mravec, K. Poláková, L. Zdražil, S. Kment, A. L. Rogach, M. Otyepka, R. Zbořil. pH Sensing and Imaging in Living Cells based on Fluorescence Lifetime of Carbon Dot Nanosensors. Biosensors & Bioelectronics 2026, 291, 118022.
- D. V. Pavlov, K. A. Sergeeva, A. A. Seredin, A. B. Cherepakhin, A. A. Sergeev, A. V. Sokolova, Y. N. Kulchin, A. Y. Zhizhchenko, M. I. Petrov, A. A. Kuchmizhak, A. L. Rogach. Nonlinear Light Conversion and Infrared Photodetection with Laser-Printed Plasmonic Metasurface Supporting Bound States in the Continuum. Light Sci. Appl. 2026, 15, 23.
- M. Langer, L. Zdražil, A. L. Rogach, S. Osella, M. Otyepka. Photoexcited Species Localize on Solvent-Accessible Fluorophore Rich Domains inside Carbon Dots. Carbon 2026, 249, 121228.