Abstract
Two-dimensional halide perovskites are exciting new semiconductors that show great promising in low cost and high performance optoelectronics devices. However, the weak chemical bonding of halide perovskites makes them chemically, thermally, and mechanically unstable. To address this critical issue and move forward for commercialization, deeper fundamental insights regarding the degradation mechanism and better stabilization strategies have to be achieved. In this talk, I will present a new molecular approach to the synthesis of high-quality organic-inorganic hybrid perovskite quantum wells through incorporating widely tunable organic semiconducting building blocks as the surface capping ligands. Then, I will talk about the applications of these materials in high performance and highly stable solar cells and thermoelectric conversion devices.
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