Bias-scanning based tunable LSPR sensor. Issue 4 (8th January 2018)

• Record Type: Journal Article
• Authors: Ran, Lingling; Tao, Yifei; Guo, Kai; Shen, Fei; Zhou, Hongping; Sun, Yongxuan; Zhang, Renbin; Zhou, Qingfeng; Yang, Jiuru; Yin, Zhiping; Guo, Zhongyi
• Is Part Of: Physical chemistry chemical physics. Volume 20:Issue 4(2017)
• Page Start: 2146
• Page End: 2150
• Publication Date: 2018-01-08
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c7cp07565k
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The principle and the characteristics of the bias-scanning based tunable localized surface plasmon resonance (LSPR) sensors for environmental refractive index have been theoretically and numerically investigated in detail. Abstract : The principle and the characteristics of the bias-scanning based tunable localized surface plasmon resonance (LSPR) sensors for environmental refractive index have been theoretically and numerically investigated in detail. The sensors exhibit linear negative-shifts in the scattering-bias spectral position when the refractive index of the surrounding medium increases. By bias-scanning, a single-wavelength measurement for sensing the environmental refractive index can be realized effectively. In addition, we demonstrate that the sensing performance of the designed sensor can be adjusted by nano-scale manipulations of metal nanoparticles' sizes and shapes. The proposed devices may pave the way for the development of electrochemical sensors that can convert spectrum scanning into bias scanning.