Journal
ADVANCED THEORY AND SIMULATIONS
Volume 1, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adts.201700035
Keywords
analytical modeling; neuromorphic computing; organic-inorganic perovskites; resistive switching
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Funding
- NSFC for Excellent Young Scholars [51422201]
- NSFC Program [51732003, 51372035, 61774031, 61574031, 61404026, 11604044]
- 111 Project [B13013]
- Jilin Province [20160101324JC]
- European Research Council (ERC) under the European Union [648635]
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This paper presents an analytical model of resistive switching in organic-inorganic CH(3)NH(3)Pbl(3), perovskite. It is interpreted that the resistive switching phenomenon is due to the formation/rupture of iodine vacancy-based conductive filament (CF) propagating in both vertical and lateral directions. Set and reset processes are explained in the model by the evolution of the CF length and radius driven by electrical and thermal forces. The model-based simulation results can describe the experimental results, providing an estimate of several switching parameters such as the activation energy of iodine vacancy migration and the CF diameter. Learning in a two-transistor/one-resistor synapse structure is demonstrated by simulations. Finally, the neuromorphic recognition of multiple patterns is demonstrated through a two-layer neural network consisting of 5625 presynaptic neurons and four postsynaptic neurons.
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