Hybrid organic–inorganic methylammonium lead halide perovskites, are recognized for their excellent semiconducting properties. These novel materials have been applied as the intrinsic layer in perovskite solar cells

As the third generation of solar cells, perovskite solar cells (PSCs) have high power-conversion efficiency. The fundamental charge generation and transportation mechanisms for PSC are similar to that of dye-sensitized solar cells.

Our research is focusing on the working mechanism and degradation process of PSCs. With the help of advanced characterizations like FIB-TEM, APT, and STEM-EELS, we can deeply understand their charge transfer and recombination mechanisms.

Highlighted Publications

S. Wang, M. Sina, P. Parikh, T. Uekert, B. Shahbazian, A. Devaraj, and Y. S. Meng, “Role of 4-tert-Butylpyridine as a Hole Transport Layer Morphological Controller in Perovskite Solar Cells” Nano Letters, 2016, 16, 5594

S. Wang, W. Yuan, and Y. S. Meng. “Spectrum-Dependent Spiro-OMeTAD Oxidization Mechanism in Perovskite Solar Cells“, ACS Appl. Mater. Interfaces, 2015, 7 (44), 24791