Design of tunable ultraviolet (UV) absorbance by controlling the AgAl co-sputtering deposition

Xin-Yuan Zhang; Lei Chen; Yaxin Wang; Yongjun Zhang; Jinghai Yang; Hyun Chul Choi; Young Mee Jung

doi:10.1016/j.saa.2017.12.056

Design of tunable ultraviolet (UV) absorbance by controlling the AgAl co-sputtering deposition

Spectrochim Acta A Mol Biomol Spectrosc. 2018 May 15:197:37-42. doi: 10.1016/j.saa.2017.12.056. Epub 2017 Dec 20.

Authors

Xin-Yuan Zhang¹, Lei Chen², Yaxin Wang³, Yongjun Zhang³, Jinghai Yang⁴, Hyun Chul Choi⁵, Young Mee Jung⁶

Affiliations

¹ Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
² Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, PR China; Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea.
³ Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, PR China.
⁴ Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, PR China. Electronic address: jhyang1@jlnu.edu.cn.
⁵ Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea.
⁶ Department of Chemistry, Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea. Electronic address: ymjung@kangwon.ac.kr.

PMID: 29277479
DOI: 10.1016/j.saa.2017.12.056

Abstract

Changing the structure and composition of a material can alter its properties; hence, the controlled fabrication of metal nanostructures plays a key role in a wide range of applications. In this study, the structure of AgAl ordered arrays fabricated by co-sputtering deposition onto a monolayer colloidal crystal significantly increased its ultraviolet (UV) absorbance owing to a tunable localized surface plasmon resonance (LSPR) effect. By increasing the spacing between two nanospheres and the content of aluminum, absorbance in the UV region could be changed from UVA (320-400nm) to UVC (200-275nm), and the LSPR peak in the visible region gradually shifted to the UV region. This provides the potential for surface-enhanced Raman scattering (SERS) in both the UV and visible regions.