Artículo
Physical Model for the Current-Voltage Hysteresis and Impedance of Halide Perovskite Memristors
Berruet, Mariana
; Pérez Martínez, José Carlos; Romero, Beatriz; Gonzales, Cedric; Al Mayouf, Abdullah M.; Guerrero, Antonio; Bisquert, Juan
Fecha de publicación:
03/2022
Editorial:
American Chemical Society
Revista:
ACS Energy Letters
ISSN:
2380-8195
e-ISSN:
2380-8195
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
An investigation of the kinetic behavior of MAPbI3 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.
Palabras clave:
MEMRISTOR
,
HALIDE PEROVSKITE
,
PHYSICAL MODEL
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Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Berruet, Mariana; Pérez Martínez, José Carlos; Romero, Beatriz; Gonzales, Cedric; Al Mayouf, Abdullah M.; et al.; Physical Model for the Current-Voltage Hysteresis and Impedance of Halide Perovskite Memristors; American Chemical Society; ACS Energy Letters; 7; 3; 3-2022; 1214-1222
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