From RT hysteresis free FETs to tailoring phase purity and orientation in layered 2D perovskites
Aditya Mohite a
a RICE UNIVERSITY, Main street, 6100, Houston, United States
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
Roma, Italy, 2019 May 12th - 15th
Organizers: Prashant Kamat, Filippo De Angelis and Aldo Di Carlo
Invited Speaker Session, Aditya Mohite, presentation 191
Publication date: 11th February 2019

In this talk, I will describe two new results that are open questions in the field of halide hybrid perovskites. First, I will describe our results on obtaining reproducible, hysteresis-free working field effect transistors using polycrystalline perovskite films. Despite the remarkable optoelectronic properties of halide perovskites, achieving reproducible of field effect transistors (FET) action in polycrystalline films at room temperature (RT) has been challenging and represents a fundamental bottleneck for understanding electronic charge transport. Second, I will describe extensive structure-property measurements to understand the design principles for tailoring phase-purity, crystallinity and orientation in layered 2D perovskites as they are processed from their single-crystal form to thin-films for optoelectronic devices.

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