λ/4 흡수층 구조를 갖는 NDIR 이산화탄소 가스 센서용 적외선센서의 제조 및 특성
- Title
- λ/4 흡수층 구조를 갖는 NDIR 이산화탄소 가스 센서용 적외선센서의 제조 및 특성
- Other Titles
- Fabrications and Characteristics of Infrared Sensor Composed of λ/4 Absorbing Structure for the Application of NDIR CO2 Gas Sensor
- Author
- 남태운
- Keywords
- λ/4 absorbing structure; Micromachining; Microbolometer; Absorptance efficiency
- Issue Date
- 2008-11
- Publisher
- 한국전기전자재료학회
- Citation
- 전기전자재료학회논문지, v. 21, No. 11, Page. 1005-1009
- Abstract
- A noble infrared λ/4 absorbing structure using metal reflector was studied for uncooled infrared sensors. This paper described the design and the fabrication of IR uncooled detectors which were composed of 21 by 21 elements using the surface micromachining technology. The characteristics of the array were investigated in the spectral region of 4.26 ㎛. The fabricated detectors exhibited the thermal mass of 9.75x10-9 J/K, the thermal conductance of 1.31x10-6 W/K, the thermal time constant of 7.4 ms, the responsivity of 1.07x105 V/W and the detectivity of 1.04x109 ㎝㎐1/2/W, at the chopper frequency of 10 Hz and the bias current of 9.22 ㎂. Finally the absorptance efficiency of λ/4 absorbing structure was about 23.2 % higher than that of absence absorbing structure.
- URI
- http://kiss.kstudy.com/thesis/thesis-view.asp?key=2736120https://repository.hanyang.ac.kr/handle/20.500.11754/104998
- ISSN
- 1226-7945
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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