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Chemiresistive semiconductor metal oxide (SMO) gas sensors detect gases based on resistance changes caused by gas adsorption/desorption on SMOs. These sensors have witnessed significant advancements with the development of microelectromechanical systems (MEMS) and nanotechnology. MEMS technology has facilitated mass production, miniaturization, and uniformity across sensors. Whereas, nanotechnology has contributed to the development of high-sensitivity gas sensing materials with large surface areas, catalytic coatings, and hybrid SMO junctions. However, SMOs require activation via external energy to overcome their bandgap energy and generate hot electron carriers, which are essential for high sensitivity and fast response/recovery times. Traditionally, embedded heaters have been used for this purpose; however, micro-and nano-heaters are plagued by high power consumption and low durability, which limit their use in mobile applications. Consequently, photoactivated gas sensing using light sources (e.g., lamps and LEDs) has garnered attention as an alternative approach. This study reviewed the progress from early lamp and LED-based research to recent studies on monolithic micro-LED (µLED) based gas sensors. µLED gas sensors facilitate room-temperature operation and ultra-low power consumption within the microwatt range. Consequently, they are highly suitable for integration into consumer electronics, smart farms, smart factories, and mobile gas sensors.

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권호기사 목록 테이블로 기사명, 저자명, 페이지, 원문, 기사목차 순으로 되어있습니다.
기사명 저자명 페이지 원문 목차
Highly selective and sensitive detection of acetone by ZnWO4-WO3 hetero-composite spheres Ki Beom Kim, Myung Sung Sohn, Seong-Young Jeong p. 237-241

Highly sensitive and fast-responding ethanol sensor using Au doped-In2O3 hollow spheres Seong-Young Jeong p. 242-247

(A) multi-sensor fire detection method based on trend predictive BiLSTM networks Gyu-Li Kim, Seong-Jun Ro, Kwangjae Lee p. 248-254

Enhanced acetone detection in high-humidity environments using Cr-doped ε-WO3 spheres Ji-Yun Jeon, Da-Gyeong Shin, Young Kook Moon p. 255-258

Colorimetric sensor based on Pd-MoO3 nanowires for hydrogen gas leak detection Cheyeon Kim, Ji-Wook Yoon p. 259-264

Mini-review on VO2-based sensors utilizing metal-insulator transition Hyeongyu Gim, Minho Lee, Woojin Hong, Kootak Hong p. 265-273

Photoactivated metal oxide-based chemiresistors : revolutionizing gas sensing with ultraviolet illumination Sunwoo Lee, Gye Hyeon Lee, Myungwoo Choi, Gana Park, Dakyung Kim, Sangbin Lee, Jeong-O Lee, Donghwi Cho p. 274-287

Synthesis and oxidation behavior of Pd-Ir@CeO2 core-shell nanoparticles for hydrogen gas sensor Gi-Seung Shin, Dong-Seog Kim, Tuong Van Tran, Geun-Jae Oh, Seok-Yong Hong, Ho-Geun Song, Yeon-Tae Yu p. 288-297

임베디드 플랫폼을 위한 화재 조기 감지 시스템 = Early fire detection system for embedded platforms : deep learning approach to minimize false alarms : 오경보 최소화를 위한 딥러닝 접근 방식 노성준, 이광재 p. 298-304

고감도 sub-ppm 수준의 다공성 CuO/In2O3나노구조 트리메틸아민 가스센서 = Highly sensitive sub-ppm level trimethylamine gas sensor based on porous CuO/In2O3 nanostructures 윤성도, 명윤, 나찬웅 p. 305-309

NiO가 장식된 In2O3 Nanorods의 HCHO 감지 특성 향상 = Enhanced HCHO sensing performance of NiO-decorated In2O3 nanorods 박시온, 김영훈, 장유준, 김유진, 한수현, 정재한, 심영석 p. 310-317

TiO2장식을 통한 SnO2 nanorods의 CH3COCH3 감지 특성 개선 = Role of TiO2 decoration on SnO2 nanorods for highly sensitive and selective acetone detection 이지형, 조운현, 임희원, 소재환, 배하경, 정재한, 심영석 p. 318-325

MOS-based gas sensors for early alert of thermal runaway in lithium-ion batteries Soo Min Lee, Seon Ju Park, Ho Won Jang p. 326-337

InGaZnO thin-film transistor-based pH sensor with parylene-C gate dielectric Gwang-Eun Choi, Min-Joon Kim, Ra-Yeong Park, Yoon Kim, Dong-Wook Park p. 338-343

Strategy for enhancing functional density of stretchable electronics by self-sensing interconnects Dongwuk Jung, Hunpyo Ju p. 344-352

Effect of SAW-IDT electrodes composed of aluminum-nickel composite thin films on the acoustic performance of SAW devices Jae-Cheol Park p. 353-358

Advancements in photoactivated gas sensors : a review Kichul Lee, Inkyu Park p. 359-365

Enhanced electrochemical detection of heavy metal ions via post-synthetic Schiff base modification of MWCNT-MOF composites Yeon-Joo Kim, Seung-Ho Choi, Seon-Jin Choi p. 366-372

필름형 레벨센서의 민감도 향상을 위한 설계 방법 = Design method for improving sensitivity of film-type level sensors 김병곤, 장수관 p. 373-377

저비용 고효율의 IoT 기반의 부력식 레벨센서 설계 = Design of IoT-based buoyancy-based level sensors for low-cost and high-efficiency 김병곤, 장수관 p. 378-383

옵티컬 플로우를 이용한 영상처리 기반 진동 계측 및 검증 = Vibration measurements and verification based on image processing using optical flow 백준병, 이태희, 임수연, 최봉열, 최두현 p. 384-390

초단기선 탑재 무인수상선의 협력 항법을 통한 무인잠수정의 위치인식 향상 = Improved localization of unmanned underwater vehicle via cooperative navigation of unmanned surface vehicle equipped with ultrashort baseline 최승혁, 최영철, 정종대 p. 391-398

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