Memory and logic operations in self-powered multiferroic photodetectors
Abstract
The in-sensor computing paradigm, which enables rapid signal processing with low energy consumption, pursues a frontier model to reduce data transmission and redundancy. The direct conversion of light signals into photocurrent is achieved in multiferroic photodetectors, which implement in-sensor computing. The millisecond response and detectivity of ∼1015 Jones enable pronounced performance in wavelengths 300–430 nm. By leveraging the plastic photocurrent/photoconductance, Bi4Ti3−xFexO12 multiferroic photodetectors exhibit memory/forgetting and logic functions (OR, AND, and NOT) under light and electric pulse stimulation, which is attributed to the coupling of magnetic photocurrent with the imprinting effect. The observations highlight the advantages of in-sensor memory and computing.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (7)
Hongyang Li
Qiligeer Bai
School of Physical Science and Technology, & Inner Mongolia Key Laboratory of Microscale Physics and Atomic Manufacturing, Inner Mongolia University , Hohhot 010021, the Nei Monggol Autonomous Region,
Uudam Borjigin
School of Physical Science and Technology, & Inner Mongolia Key Laboratory of Microscale Physics and Atomic Manufacturing, Inner Mongolia University , Hohhot 010021, the Nei Monggol Autonomous Region,
Li Zhen
Chaoran Zhang
Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
Shifeng Zhao
School of Physical Science and Technology, & Inner Mongolia Key Laboratory of Microscale Physics and Atomic Manufacturing, Inner Mongolia University , Hohhot 010021, the Nei Monggol Autonomous Region,
Yulong Bai
Department of Chemistry, Westlake University, 600 Dunyu Road, Hangzhou 310030, P. R. China