标题: | Porous Organic TFTs for the Applications on Real-Time and Sensitive Gas Sensors |
作者: | Zan, Hsiao-Wen Dai, Ming-Zhi Hsu, Ting-Yu Lin, Hung-Cheng Meng, Hsin-Fei Yang, Yuh-Shyong 生物科技学系 物理研究所 光电工程学系 显示科技研究所 Department of Biological Science and Technology Institute of Physics Department of Photonics Institute of Display |
关键字: | Ammonia;gas sensor;pentacene;porous;thin-film transistor (TFT) |
公开日期: | 1-八月-2011 |
摘要: | A pentacene-based organic thin-film transistor (OTFT) with a porous active layer is demonstrated for the first time. The porous OTFT exhibits a fast, sensitive, and reversible response to ammonia gas with a detection limit as 500 ppb, whereas the OTFT without porous structure has a slow response and a poor recovery behavior. The sensing mechanism dominated by the dissociation of hydroxyl groups of the polymer dielectric layer is raised and discussed. The proposed device is the first OTFT-based ammonia sensor with reversible response and high sensitivity in low parts-per-million range. It is promising for the development of a diagnostic breath analysis system. |
URI: | http://dx.doi.org/10.1109/LED.2011.2155025 http://hdl.handle.net/11536/20904 |
ISSN: | 0741-3106 |
DOI: | 10.1109/LED.2011.2155025 |
期刊: | IEEE ELECTRON DEVICE LETTERS |
Volume: | 32 |
Issue: | 8 |
起始页: | 1143 |
结束页: | 1145 |
显示于类别: | Articles |
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