https://scholars.lib.ntu.edu.tw/handle/123456789/379857
標題: | Long-wavelength infrared sensing by cytochrome C protein thin film deposited by the spin coating method | 作者: | Lai, B.-Y. Chu, C.-H. GUO-DUNG JOHN SU |
關鍵字: | Bolometer; Cytochrome c protein; Long-wavelength infrared; Temperature coefficient of resistance | 公開日期: | 2013 | 卷: | 13 | 期: | 11 | 起(迄)頁: | 15833-15845 | 來源出版物: | Sensors (Switzerland) | 摘要: | High infrared absorption, large temperature coefficient of resistance (TCR) and small 1/f noise are preferred characteristics for sensing materials used in bolometers. In this paper, we discuss a cytochrome c protein as a potential sensing material for long-wavelength bolometers. We simulated and experimentally proved high infrared absorption of cytochrome c in the wavelength between 8 μm and 14 μm. Cytochrome c thin films were deposited on a hydrophilic surface using the spin coating method. The resistance variation with temperature is measured and we show that the TCR of cytochrome c thin films is consistently higher than 20%. The measured values of 1/f noise were as low as 2.33 × 10-13 V2/Hz at 60 Hz. Finally, we test the reliability of cytochrome c by measuring the resistance changes over time under varying conditions. We found that cytochrome c thin films deteriorated significantly without appropriate packaging. © 2013 by the authors; licensee MDPI, Basel, Switzerland. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84888122688&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/379857 |
DOI: | 10.3390/s131115833 | SDG/關鍵字: | Bolometers; Coatings; Infrared absorption; Infrared detectors; Light absorption; Proteins; Cytochrome c; Hydrophilic surfaces; Long-wavelength infrared; Protein thin films; Resistance change; Resistance variations; Spin-coating method; Temperature coefficient of resistance; Thin films |
顯示於: | 電機工程學系 |
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