Boehmite nanorod/gold nanoparticle nanocomposite film for an easy-to-use optical humidity sensor

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• 作者：Priyank Mohan^a  ; [Author Vitae] ; Ryuzo Shinta^b  ; [Author Vitae] ; Jun Fujiwara^c  ; [Author Vitae] ; Hiroaki Takahashi^a  ; [Author Vitae] ; Derrick Mott^a  ; [Author Vitae] ; Yasufumi Matsumura^b  ; [Author Vitae] ; Goro Mizutani^a  ; [Author Vitae] ; Kentaro Iwami^c  ; [Author Vitae] ; Norihiro Umeda^c  ; [Author Vitae] ; Shinya Maenosono^a ; ^{shinya@jaist.ac.jp}  ; [Author Vitae]
• 关键词：Boehmite ; Gold nanoparticle ; Composite film ; Localized surface plasmon resonance ; Humidity sensor
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2012
• 出版时间：20 June, 2012
• 年：2012
• 卷：168
• 期：Complete
• 页码：429-435
• 全文大小：1399 K

文摘

Nanocomposite films consisting of gold nanoparticles (Au NPs) and boehmite nanorods (NRs) were synthesized via simple wet chemical methods. The nanocomposite film exhibited an excellent optical sensing capability of humidity utilizing the refractive-index-dependent localized surface plasmon resonance (LSPR), which directly enables low-cost and easy-to-use remote humidity monitoring. It has been revealed that the superior performance of the Au-NP/boehmite nanocomposite film is owing to porousness, smoothness, and hydrophilicity of the boehmite matrix.