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- W4382894263 abstract "Methylammonium lead iodide (MAPbI3) with extraordinary optoelectronic properties has recently been explored for memristors. Despite significant studies on its susceptibility to air, there has been limited attention towards the impact of ambiance on resistive switching (RS), specifically, the nanoscale electrical properties of interest. We used scanning probe microscopy (SPM) to study local current-voltage (I-V) characteristics, time-scale evolution of hysteresis, current maps, and topography to profoundly understand the ambient degradation. The local and macroscopic current-voltage characteristics are studied by interface modulation with (3-Aminopropyl)trimethoxysilane (APTMS) in devices, i.e., ITO/APTMS/MAPbI3 and ITO/ MAPbI3/APTMS. We report three stages of degradation based on quantitative nano-mechanical (QNM) characterizations and local I-V properties: stage 1 comprising of increased Young’s modulus accompanied by the appearance of hysteresis; stage 2 with decreased Young’s modulus when RS and negative differential resistance (NDR) happen with the evolution of lead iodide (PbI2); stage 3 when RS disappears with enhanced Young’s modulus and densification of PbI2. The enhanced nanoscale and macroscale RS characteristics of ITO/MAPBI3 and ITO/APTMS/MAPbI3 could be attributed to the humidity-induced degradation of MAPbI3 into PbI2 indicated by XRD. These characteristics at the nanoscale however diminish on Day 7 showing the nano-scale RS devices requires the prompt attention of researchers." @default.
- W4382894263 created "2023-07-03" @default.
- W4382894263 creator A5014793035 @default.
- W4382894263 creator A5021716569 @default.
- W4382894263 creator A5048984634 @default.
- W4382894263 creator A5068209077 @default.
- W4382894263 date "2023-11-01" @default.
- W4382894263 modified "2023-09-25" @default.
- W4382894263 title "Resistive switching characteristics of methyl-ammonium lead iodide perovskite during atmosphere degradation" @default.
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- W4382894263 doi "https://doi.org/10.1016/j.jallcom.2023.171231" @default.
- W4382894263 hasPublicationYear "2023" @default.
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