Real-Time Tunable Gas Sensing Platform Based on SnO<sub>2</sub> Nanoparticles Activated by Blue Micro-Light-Emitting Diodes.

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

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

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

Affiliation

Nam GB; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Ryu JE; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Eom TH; Research Laboratory of Electronics, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Kim SJ; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Suh JM; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Lee S; Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
Choi S; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Moon CW; Research Laboratory of Electronics, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
Park SJ; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Lee SM; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Kim B; Department of Display Materials Engineering, Soonchunhyang University, Asan, 31538, Republic of Korea.
Park SH; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Yang JW; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Min S; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Park S; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Cho SH; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Kim HJ; Department of Photonics and Nanoelectronics, BK21 FOUR ERICA-ACE Center, Hanyang University ERICA, Ansan, 15588, Republic of Korea.
Jun SE; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Lee TH; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Kim YJ; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Kim JY; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Hong YJ; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Shim JI; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Byun HG; Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Park Y; Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul, 05006, Republic of Korea.
Park I; Department of Photonics and Nanoelectronics, BK21 FOUR ERICA-ACE Center, Hanyang University ERICA, Ansan, 15588, Republic of Korea.
Ryu SW; Department of Electronics, Information and Communication Engineering, Kangwon National University, Samcheok, 25913, Republic of Korea.
Jang HW; Advance Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea.

Nanomicro Lett ; 16(1): 261, 2024 Aug 08.

Article in En | MEDLINE | ID: mdl-39112731

ABSTRACT

ABSTRACT

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 blue µLED-integrated light-activated gas sensor array based on SnO2 nanoparticles (NPs) that exhibit excellent sensitivity, tunable selectivity, and rapid detection with micro-watt level power consumption. The optimal power for µLED 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 SnO2 NPs. The noble metals induce catalytic interaction with reducing gases, clearly distinguishing NH3, H2, and C2H5OH. Real-time gas monitoring based on a fully hardware-implemented light-activated sensing array was demonstrated, opening up new avenues for advancements in light-activated electronic nose technologies.

Key words

Gas sensor array; Low power consumption; Metal decoration; Micro-LED; Real-time detection

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