Title :
Layer-by-layer structured Au NPs sensors for terpene vapors detection
Author :
Bin Chen ; Chuanjun Liu ; Hayashi, K.
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
Abstract :
Au nanoparticles (Au NPs) multilayer structures have been fabricated by an alternate deposition of a bifunctional dithiol cross-linker and Au NPs, to analyze the localized surface plasmon resonance spectra and the refractive index sensitivity to terpene vapors. UV-vis spectroscopy and atomic force microscopy (AFM) have been used to characterize the obtained multilayer structures. The investigations show that the number of Au NPs deposition cycles has effects on the multilayer structure fabrication and the refractive index sensitivity of the sensor.
Keywords :
atomic force microscopy; chemical vapour deposition; gas sensors; gold; multilayers; nanofabrication; nanoparticles; nanosensors; organic compounds; refractive index; surface plasmon resonance; ultraviolet spectra; visible spectra; AFM; Au; UV-vis spectroscopy; atomic force microscopy; bifunctional dithiol cross-linker deposition cycle; layer-by-layer structured NP sensor; localized surface plasmon resonance spectra; nanoparticle multilayer structure fabrication; refractive index sensitivity; terpene vapor detection; Gold; Nanoparticles; Nonhomogeneous media; Optical sensors; Refractive index; Sensitivity;
Conference_Titel :
Sensors, 2012 IEEE
Conference_Location :
Taipei
Print_ISBN :
978-1-4577-1766-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2012.6411152
