期刊
ACS ENERGY LETTERS
卷 7, 期 3, 页码 1214-1222出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.2c00121
关键词
-
类别
资金
- Generalitat Valenciana [GRISOLIAP/2019/048]
- Ministerio de Ciencia y Innovacion [PID2019-107348GB100]
- CONICET
- Comunidad de Madrid [S2018/NMT-4326-SINFOTON2-CM]
- Universidad Rey Juan Carlos Grupo DELFO de alto rendimiento under research program Programa de fomento y desarrollo de la investigacion [M2363]
An investigation on the kinetic behavior of MAPbI(3) memristors reveals that the onset voltage to a high conducting state is strongly dependent on the voltage sweep rate, and the impedance spectra exhibit complex capacitive and inductive patterns. By developing a dynamic model, insights into the coupling of ionic and electronic properties that give rise to the resistive switching behavior are obtained. The model effectively distinguishes between diffusion and transition-state-formation steps and describes well the experimental current-voltage curves at different scan rates and impedance spectra.
An investigation of the kinetic behavior of MAPbI(3) memristors shows that the onset voltage to a high conducting state depends strongly on the voltage sweep rate, and the impedance spectra generate complex capacitive and inductive patterns. We develop a dynamic model to describe these features and obtain physical insight into the coupling of ionic and electronic properties that produce the resistive switching behavior. The model separates the memristive response into distinct diffusion and transition-state-formation steps that describe well the experimental current-voltage curves at different scan rates and impedance spectra. The ac impedance analysis shows that the halide perovskite memristor response contains the composition of two inductive processes that provide a huge negative capacitance associated with inverted hysteresis. The results provide a new approach to understand some typical characteristics of halide perovskite devices, such as the inductive behavior and hysteresis effects, according to the time scales of internal processes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据