Neuron-inspired CsPbBr_(3)/PDMS nanospheres for multi-dimensional sensing and interactive displays  

作　　者：Junhu Cai Xiang Zhang Yu Chen Wenzong Lai Yun Ye Sheng Xu Qun Yan Tailiang Guo Jiajun Luo Enguo Chen 

机构地区：[1]National and Local United Engineering Laboratory of Flat Panel Display Technology,College of Physics and Information Engineering,Fuzhou University,350108,Fuzhou,China [2]Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information,Huazhong University of Science and Technology,430074,Wuhan,China [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,350108,Fuzhou,China

出　　处：《Light(Science & Applications)》2025年第2期476-489,共14页光(科学与应用)(英文版)

基　　金：the support of the National Natural Science Foundation of China(Grant Nos.62175032 and 62104077);Key Science and Technology Project Program of Fujian Province(Grant No.2024HZ022005);Natural Science Foundation for Distinguished Young Scholars of Fujian Province(Grant No.2024J010046);Open Project Program of Wuhan National Laboratory for Optoelectronics(GrantNo.2023WNLOKF011).

摘　　要：Multifunctional materials have attracted tremendous attention in intelligent and interactive devices.However,achieving multi-dimensional sensing capabilities with the same perovskite quantum dot(PQD)material is still in its infancy,with some considering it currently challenging and even unattainable.Drawing inspiration from neurons,a novel multifunctional CsPbBr_(3)/PDMS nanosphere is devised to sense humidity,temperature,and pressure simultaneously with unique interactive responses.The carefully engineered polydimethylsiloxane(PDMS)shell enables the reversible activity of the core CsPbBr_(3),serving a dual role similar to dendrites in conveying and evaluating external stimuli with high sensitivity.Molecular dynamics analysis reveals that the PDMS shell with proper pore density enhances the conductivity in water and heat,imparting CsPbBrs with sensitive but reversible properties.By tailoring the crosslinking density of the PDMS shell,nanospheres can surprisingly show customized sensitivity and reversible responses to different level of stimuli,achieving over 95%accuracy in multi-dimensional and wide-range sensing.The regular pressure-sensitive property,discovered for the frst time,is attributed to the regular morphology of the nanosphere,the inherent low rigidity of the PDMS shell,and the uniform distribution of the CsPbBr core material in combination.This study breaks away from conventional design paradigms of perovskite core-shell materials by customizing the cross-linked density of the shell material.The reversible response mechanism of nanospheres with gradient shell density is deeply explored in response to environmental stimuli,which offers fresh insights into multi-dimensional sensing and interactive display applications.

关 键 词：interactive displays temperature sensing humidity sensing neuron inspired multifunctional materials CSPBBr PDMS nanospheres intelligent interactive deviceshoweverachieving multi dimensional sensing 

分 类 号：TB3[一般工业技术—材料科学与工程]