Real-Time Tunable Gas Sensing Platform Based on SnO_(2) Nanoparticles Activated by Blue Micro-Light-Emitting Diodes  

作　　者：Gi Baek Nam Jung-El Ryu Tae Hoon Eom Seung Ju Kim Jun Min Suh Seungmin Lee Sungkyun Choi Cheon Woo Moon Seon Ju Park Soo Min Lee Byungsoo Kim Sung Hyuk Park Jin Wook Yang Sangjin Min Sohyeon Park Sung Hwan Cho Hyuk Jin Kim Sang Eon Jun Tae Hyung Lee Yeong Jae Kim Jae Young Kim Young Joon Hong Jong-In Shim Hyung-Gi Byun Yongjo Park Inkyu Park Sang-Wan Ryu Ho Won Jang 

机构地区：[1]Department of Materials Science and Engineering,Seoul National University,Seoul 08826,Republic of Korea [2]Research Laboratory of Electronics,Department of Mechanical Engineering,Massachusetts Institute of Technology,Cambridge,MA 02139,USA [3]Ming Hsieh Department of Electrical and Computer Engineering,University of Southern California,Los Angeles,CA 90089,USA [4]Department of Display Materials Engineering,Soonchunhyang University,Asan 31538,Republic of Korea [5]Department of Photonics and Nanoelectronics,BK21 FOUR ERICA-ACE Center,Hanyang University ERICA,Ansan 15588,Republic of Korea [6]Department of Nanotechnology and Advanced Materials Engineering,Sejong University,Seoul 05006,Republic of Korea [7]Department of Electronics,Information and Communication Engineering,Kangwon National University,Samcheok 25913,Republic of Korea [8]Advance Institute of Convergence Technology,Seoul National University,Suwon 16229,Republic of Korea [9]Department of Mechanical Engineering,Korea Advanced Institute of Science and Technology,Daejeon 34141,Republic of Korea [10]Department of Physics,Chonnam National University,Gwangju 500-757,Republic of Korea

出　　处：《Nano-Micro Letters》2024年第12期103-119,共17页纳微快报（英文版）

基　　金：supported by the Nano&Material Technology Development Program through the National Research Foundation of Korea(NRF)funded by Ministry of Science and ICT(RS-2024-00405016);supported by“Cooperative Research Program for Agriculture Science and Technology Development(Project No.PJ01706703)”Rural Development Administration,Republic of Korea.The Inter-University Semiconductor Research Center and Institute of Engineering Research at Seoul National University provided research facilities for this work.

摘　　要：Micro-light-emitting diodes(μLEDs)have gained significant interest as an activation source for gas sensors owing to their advantages,including room temperature operation and low power consumption.However,despite these benefits,challenges still exist such as a limited range of detectable gases and slow response.In this study,we present a blueμLED-integrated light-activated gas sensor array based on SnO_(2)nanoparticles(NPs)that exhibit excellent sensitivity,tunable selectivity,and rapid detection with micro-watt level power consumption.The optimal power forμLED is observed at the highest gas response,supported by finite-difference time-domain simulation.Additionally,we first report the visible light-activated selective detection of reducing gases using noble metal-decorated SnO_(2)NPs.The noble metals induce catalytic interaction with reducing gases,clearly distinguishing NH3,H2,and C2H5OH.Real-time gas monitoring based on a fully hardwareimplemented light-activated sensing array was demonstrated,opening up new avenues for advancements in light-activated electronic nose technologies.

关 键 词：Micro-LED Gas sensor array Low power consumption Metal decoration Real-time detection 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TP212[自动化与计算机技术—检测技术与自动化装置]