Nano-Micro Letters (Aug 2024)

Real-Time Tunable Gas Sensing Platform Based on SnO2 Nanoparticles Activated by Blue Micro-Light-Emitting Diodes

  • 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

DOI
https://doi.org/10.1007/s40820-024-01486-2
Journal volume & issue
Vol. 16, no. 1
pp. 1 – 17

Abstract

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Highlights Blue micro-light-emitting diodes (μLED)-integrated gas sensors were fabricated as monolithic structure by directly loading sensing materials onto the μLED. SnO2 nanoparticles are activated by blue μLED and exhibit outstanding sensitivity to NO2 at μ-Watt power levels. Noble metal (Au, Pd, Pt)-decorated SnO2 showed the tunable gas selectivity for 4 target gases under blue light illumination.

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