Organohalide Light Absorbers

The development of CH3NH3PbI3 perovskite solar cells in recent years has had tremendous impact by significantly improving the efficiency of solution processable photovoltaic devices, with numbers as high as 22% that are quickly approaching the state-of-the-art performance of Si at 25%. Yet, commercialization of these materials faces real challenges because of the dangers associated with water-soluble compounds that contain lead. Following some early work on the processing of Pb-based phases, our group shifted our focus to the development of less toxic perovskite analogues based on elements like Bi and developing the fundamental understanding of their optical properties. 

Publications

Goh et al. Structural Diversity in 2-(2-Aminoethyl) pyridine-Based Lead Iodide Hybrids Inorganic Chemistry 63 (2024) 10160-10166 [doi]

Cassingham et al. Ordered Cationic Mixing in a 1D Organic–Inorganic Hybrid Chemistry of Materials 37 (2025) 2418-2426 [doi]

McClure et al. Influence of Dimethyl Sulfoxide on the Structural Topology during Crystallization of PbI2 Inorganic Chemistry 59 (2020) 16799–16803 [doi]

Hodgkins et al. Anionic order and band gap engineering in vacancy ordered triple perovskites Chemical Communications 55 (2019) 3164-3167 [doi]

Bass et al. Vibronic Structure in Room Temperature Photoluminescence of the Halide Perovskite Cs3Bi2Br9 Inorg. Chem., 2017, 56, 42 [doi]

Bass et al. Influence of moisture on the preparation, crystal structure, and photophysical properties of organohalide perovskites Chem. Commun. 2014, 50, 15819 [doi]