Junke Wang | LENS Lab

Invited talk at the Aydin Group, LMU Munich

Mon, 18 May 2026 00:00:00 +0000

Junke Wang visited the Aydin Group at Ludwig Maximilian University of Munich (LMU Munich) as an invited speaker at their Solar Energy Seminar Series.

The talk, titled Perovskite multijunction photovoltaics: materials, interfaces, and device platforms, covered the fundamental challenges of morphological and compositional disorder in perovskite films and how these lead to open-circuit voltage losses and stability issues in high-bandgap solar cells. Mitigation strategies based on templated crystal growth were presented, achieving open-circuit voltages approaching 90% of the theoretical limit across bandgaps from 1.8 to 2.3 eV. The talk also demonstrated efficient monolithic all-perovskite double-, triple-, and quadruple-junction solar cells with power conversion efficiencies beyond 27% at 1 cm².

The presentation was followed by stimulating discussions with members of Prof. Aydin’s group on interfacial engineering, long-term stability, and scalable deposition pathways. The visit also opened promising avenues for future collaboration, and we look forward to continued exchange.

We thank Prof. Erkan Aydin and his group for the warm welcome and the excellent scientific atmosphere. A summary of the visit has also been posted on the Aydin Group website.

Junke Wang

Mon, 18 May 2026 00:00:00 +0000

Junke Wang is a Professor in Materials Science and Engineering at South China University of Technology. His research focuses on emerging semiconductors and multilayer optoelectronic devices, with an emphasis on understanding how processing, composition, and interfaces govern energy losses, stability, and performance.

He received his PhD in Chemistry from Eindhoven University of Technology (TU/e) in 2020 under the supervision of Prof. René Janssen, where he developed perovskite-based multijunction solar cells and investigated interfacial and morphological control of charge transport. He then carried out postdoctoral research between TU/e and the University of Toronto (2020–2023) with Prof. Edward Sargent, focusing on high-bandgap semiconductors, tandem photovoltaics, and solar-driven fuel generation. From 2023 to 2026, he was a Marie Skłodowska-Curie Fellow at the University of Oxford in the group of Prof. Henry Snaith, working on wide-bandgap perovskites and multijunction device architectures.

His research has contributed to advancing the performance and understanding of perovskite multijunction solar cells, including the development of low-loss interconnecting layers, halide homogenization strategies, and mechanistic insights into film formation and interfacial recombination. His work spans materials chemistry, thin-film processing, and device physics, with a consistent focus on identifying and mitigating the fundamental loss mechanisms in optoelectronic devices.

At South China University of Technology, he is developing a research program centered on device acceleration platforms that integrate automated fabrication, multimodal characterization, and data-driven optimization. His goal is to enable systematic exploration of complex material and process spaces and to establish scalable strategies for high-efficiency and stable optoelectronic devices, including photovoltaics, photodetectors, and light-emitting systems.

Junke Wang joins South China University of Technology as Tenure-Track Professor

Sun, 17 May 2026 00:00:00 +0000

Junke Wang has signed a contract with South China University of Technology (SCUT) to join the School of Materials Science and Engineering and the State Key Laboratory of Luminescent Materials and Devices as a tenure-track professor and principal investigator.

The signing ceremony took place in Munich, Germany, and was attended by Professor Hongwu Tang, Member of the Chinese Academy of Engineering.

The LENS Lab will work on multijunction perovskite optoelectronics, targeting ultra-high efficiency solar modules, solar-driven fuel generation, and multilayer image sensors through advanced materials characterisation and optical design.

The LENS Lab welcomes applications from highly motivated and talented researchers. Interested candidates are welcome to get in touch.