镀膜仪文献：通过调制光致发光和光吸收，浸涂纳米碳管的光学气体感应

2020-09-08 14:13  下载量：0

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Photoluminescence (PL) and optical absorption (OA) of single-wall carbon nanotube (CNT) thin films are shown to substantially change after exposure to NO 2 or NH 3 gas. These films prepared by dipcoating in surfactant-aided CNT dispersions consist of unbundled and well-exposed tubes; the former property enables the detection of PL, a task difficult for bundled CNTs, while the latter enlarges the effective surface area available for gas adsorption. The observed changes correspond well to those in electrical resistance, which are consistently explained by charge transfer between the CNTs and the gas molecules.

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北京东方德菲仪器有限公司
银牌会员 | 第21年
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