UV-Assisted Alcohol Sensing With Zinc Oxide-Functionalized Gallium Nitride Nanowires

被引：7

作者：

Bajpai, Ritu ^{[1
]}

Motayed, Abhishek ^{[2
,3
]}

Davydov, Albert V. ^{[3
]}

Bertness, Kris A. ^{[4
]}

Zaghloul, Mona E. ^{[1
]}

机构：

[1] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20052 USA

[2] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA

[3] NIST, Mat Measurement Lab, Gaithersburg, MD 20899 USA

[4] NIST, Phys Measurement Lab, Boulder, CO 80305 USA

来源：

IEEE ELECTRON DEVICE LETTERS | 2012年 / 33卷 / 07期

关键词：

Chemical sensors; nanoparticles; nanoscale devices; photoconductivity; semiconductor nanostructures;

D O I：

10.1109/LED.2012.2194129

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Alcohol sensors using gallium nitride (GaN) nanowires (NWs) functionalized with zinc oxide (ZnO) nanoparticles have been demonstrated. These sensors operate at room temperature, are fully recoverable, and demonstrate a response and recovery time on the order of 100 s. The sensing is assisted by UV light within the 215-400-nm band and with the intensity of 375 nW/cm(2) measured at 365 nm. The ability to functionalize an inactive NW surface, with analyte-specific active metal-oxide nanoparticles, makes this sensor technique suitable for fabricating multianalyte sensor arrays.

引用

页码：1075 / 1077

页数：3

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