센서학회지 (Journal of Sensor Science and Technology)

  • 제33권5호
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  • Pages.310-317
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  • 2024
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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NiO가 장식된 In2O3 Nanorods의 HCHO 감지 특성 향상

Enhanced HCHO Sensing Performance of NiO-decorated In2O3 Nanorods

  • 박시온 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 김영훈 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 장유준 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 김유진 (한국기술교육대학교 전기.전자.통신공학부) ;
  • 한수현 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 정재한 (한국기술교육대학교 에너지신소재화학공학부) ;
  • 심영석 (한국기술교육대학교 에너지신소재화학공학부)
  • Zion Park (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Younghun Kim (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Youjune Jang (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Yujin Kim (School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education) ;
  • Soohyun Han (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Jae Han Chung (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Young-Seok Sim (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education)
  • 투고 : 2024.09.02
  • 심사 : 2024.09.11
  • 발행 : 2024.09.30
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초록

Formaldehyde (HCHO) is a major primary indoor air pollutant with various adverse effects on the human body, includingsuch as sick building syndrome, lung cancer, and nasal cancer. Therefore, gas sensors for effective HCHO detection detecting HCHO are crucial for maintaining a healthy indoor environments, and research is being conducted to develop high-performance sensors for this purpose. AnOne of the effective methods for enhancing the to enhance sensing properties is involves modifying the p-n heterojunction structure, which improves sensing through via electronic sensitization based on the expanded depletion region and chemical sensitization that dissociates specific gases. In this studyHerein, weWe fabricated NiO-decorated In2O3 NRs using an e-beam evaporator based on the glancing angle deposition technique by optimizing the NiO thickness (0, 1, 2, and 3 nm). When exposed to 50 ppm HCHO, NiO-decorated In2O3 NRs showed a 3.91%-fold enhancement in the gas response (Ra/Rg-1= 23.9) and a 41.47% faster response time (40.7 s) than-compared to bare In2O3 NRs with an extremely low theoretical detection limit of ≈approximately 9.3 ppb.

키워드

과제정보

본 논문은 교육부와 한국연구재단의 재원으로 지원을 받아 수행된 3단계 산학연협력 선도전문대학 육성사업(LINC 3.0)의 연구결과 입니다. 본 논문은 2024년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신사업의 결과입니다(2021RIS-004). 이 논문은 한국기술교육대학교 산학협력단 공용장비센터의 지원으로 연구되었음.

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