We upscale tandem perovskite solar cells to surpass the 25 % efficiency milestone. We will NOT stop working on this project until at least half of the globe is powered by green energy.

We fabricate and investigate perovskite single-crystal solar cells to explore the fundamental limits and ultimate performance of this emerging technology. Our goal is to uncover the intrinsic properties of these materials to guide the design of more efficient, stable, and scalable solar energy solutions. 

Wonder why X-ray tomography is so harmful? Because X-ray detectors are not sensitive. We develop sensitive sensors for X-ray photons. We will NOT stop until medical X-ray imaging becomes safe and able to detect 10 μm features.

We love systematic studies, but allow our curiosity and intuition to discover and design unseen materials for unseen applications. We work on the Automated and Machine-Learning-guided discovery of new materials.

Single crystals are free of grain boundaries, leading to significantly low defect densities, and thus hold promise for high-efficiency devices. We develop strategies to grow crystals through self-assembly, to perfect them and to integrate them into functional devices.