Mixed-Halide Perovskite Film-Based Neuromorphic Phototransistors for Mimicking Experience-History-Dependent Sensory Adaptation

Sensory adaptation is an essential function for humans to live on the earth. Herein, a hybrid synaptic phototransistor based on the mixed-halide perovskite/organic semiconductor film is reported. This hybrid phototransistor achieves photosensitive performance including a high photoresponsivity over...

Full description

Saved in:
Bibliographic Details
Published in:ACS applied materials & interfaces 2021-10, Vol.13 (40), p.47807-47816
Main Authors: Liu, Jiahui, Shen, Zihong, Ye, Yuliang, Yang, Zunxian, Gong, Zhipeng, Ye, Bingqing, Qiu, Yinglin, Huang, Qiaocan, Xu, Lei, Zhou, Yuanqing, Wu, Wenbo, Li, Fushan, Guo, Tailiang
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Biomimetic Materials - chemistry
Biomimetics - instrumentation
Biomimetics - methods
Bromides - chemistry
Bromides - radiation effects
Cesium - chemistry
Cesium - radiation effects
Iodides - chemistry
Iodides - radiation effects
Lead - chemistry
Lead - radiation effects
Light
Organic Electronic Devices
Organosilicon Compounds - chemistry
Polystyrenes - chemistry
Semiconductors
Transistors, Electronic
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sensory adaptation is an essential function for humans to live on the earth. Herein, a hybrid synaptic phototransistor based on the mixed-halide perovskite/organic semiconductor film is reported. This hybrid phototransistor achieves photosensitive performance including a high photoresponsivity over 4 × 103 A/W and an excellent specific detectivity of 2.8 × 1016 Jones. Due to the photoinduced halide-ion segregation of the mixed-halide perovskites and their slow recovery properties, the experience-history-dependent sensory adaptation behavior can be mimicked. Moreover, the light pulse width, intensity, light wavelength, and gate bias can be used to regulate the adaptation processes to improve its adaptability and perceptibility in different environments. The CsPbBr x I3–x /organic semiconductor hybrid films produced by spin coating are beneficial to large-scale fabrication. This study fabricates a novel solution-processable light-stimulated synapse based on inorganic perovskites for mimicking the human sensory adaptation that makes it possible to approach artificial neural sensory systems.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.1c11866