Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
Publication date: 23rd October 2018
Organometal halide perovskites have gained tremendous attention for its attractive optical and electronical properties. Understanding and controlling the intrinsic properties of this material is important for solving the unsettled questions and advancing the performance of the diverse optoelectronic applications. At this point, we focused on the investigation of CH3NH3PbX3 (X=Cl, Br, I) perovskite single crystals which are considered an ideal form without having interfacial effects. We verified the local electronic property and the surface potential distribution of each perovskite halide materials via conductive atomic force microscopy and Kelvin probe force microscopy, respectively. In addition, we confirmed structural systems and phase purity by using transmission electron microscopy and Raman scattering spectroscopy. Synthetically, we presented the electronic band structures of each perovskite crystals which reveal the semiconducting nature of the materials by consolidating the result values of the band gap energy and the work function. We suggest the comparative view of the fundamental properties between the most common halide dependent organometal perovskites.
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International Conference on Hybrid and Organic Photovoltaics
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