Thermal annealing induced the tunable optical properties of silver thin films with linear variable thickness

被引：8
作者：
Hong, Ruijin [1 ,2 ,3 ]
Shao, Wen [1 ,2 ]
Ji, Jialin [1 ,2 ]
Tao, Chunxian [1 ,2 ]
Zhang, Dawei [1 ,2 ]
机构：
[1] Univ Shanghai Sci & Technol, Minist Educ, Engn Res Ctr Opt Instrument & Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China
[3] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Jilin, Peoples R China
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2018年 / 118卷
基金：
中国国家自然科学基金;
关键词：
Silver thin film; Surface plasmons; Surface enhanced raman scattering; Absorption spectra; NANOROD ARRAYS; SURFACE; NANOPARTICLES; MOLECULES;
D O I：
10.1016/j.spmi.2018.04.008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Silver thin films with linear variable thickness were deposited at room temperature. The corresponding tunability of optical properties and Raman scattering intensity were realized by thermal annealing process. With the thickness increasing, the topography of as annealed silver thin films was observed to develop from discontinued nanospheres into continuous structure with a redshift of the surface plasmon resonance wavelength in visible region. Both the various nanosphere sizes and states of aggregation of as-annealed silver thin films contributed to significantly increasing the sensitivity of surface enhanced Raman scattering (SERS). (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：170 / 176
页数：7
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