Multifunctional ferroelectric heterostructure for high-performance photovoltaic,self-powered photodetection and optoelectronic synapse via non-equilibrium polarization strategyOA
Ferroelectrics exhibiting a unique photoelectric conversion mechanism based on spontaneous polarization have attracted significant interest for the development of new optoelectronic devices in the fields of communication,imaging,and sensors.Here,engineering non-equilibrium polarization by constructing a Bi_(0.9)La_(0.1)FeO_(3)/BiFe_(0.95)Mn_(0.05)O_(3)(BLFO/BFMO)ferroelectric heterostructure is presented as an innovative strategy for achieving high-efficiency photoelectric responses.Specifically,a 30-fold enhancement in the short-circuit current density is achieved in BLFO/BFMO due to the effective suppression of photogenerated carrier recombination.Benefitting from the high photocurrent density,BLFO/BFMO exhibits superior photodetection performance compared with traditional perovskite ferroelectric-based photodetectors,enabling outstanding dual-mode optical communication and imaging capabilities.Moreover,the non-equilibrium polarization induces an optoelectronic synaptic behavior that is leveraged to implement a neuromorphic vision sensor based on the BLFO/BFMO heterostructure.This work opens a novel route for designing high-performance ferroelectric materials,thereby advancing the development of multifunctional optoelectronic devices.
Guangcheng Wang;Xing Gao;Jianhua Wu;Xin Song;Shan Zhang;Ningning Sun;Pei Han;Chunxiao Lu;Liwen Zhang;Xihong Hao;Yong Li
Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,ChinaInner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices,School of Materials Science and Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources(Inner Mongolia University of Science and Technology),Ministry of Education,Baotou 014010,China
信息技术与安全科学
ferroelectricheterostructurepolarizationthin film
《Journal of Advanced Ceramics》 2026 (4)
P.221-231,11
supported by the Natural Science Foundation of China(Nos.12464001 and 12264036)the Natural Science Foundation of Inner Mongolia(Nos.2021JQ06 and 2024MS05016)the Development Program for Innovative Research Teams in Higher Education Institutions of Inner Mongolia(No.NMGIRT2510)“Lucheng Talent”Project Innovation and Entrepreneurship Team,the Program for“Grassland Talents”of Inner Mongolia“Light of the West”Talent Training Program of Chinese Academy of Sciencesthe Talent Development Fund of Inner MongoliaBasic Research Funds for Universities Directly under Inner Mongolia(Nos.2023RCTD008,2024QNJS002,and 2024QNJS036).
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