摘要
以聚苯乙烯微球的单层和双层胶体晶体为模板,通过模板电沉积银,移除模板后得到单层和双层银通孔阵列,并用作基于增强光透射(EOT)的等离子传感器.结果表明,与单层银通孔阵列相比,双层通孔阵列的传感灵敏度和品质因子都有很大提升,最高分别达到559.71 nm/RIU(RIU:Refractive index unit)和14.28 RIU^(-1).
One- and two-tier Ag through-void arrays for extraordinary optical transmission (EOT)-based plasmonic sensing were fabricated by electrodeposition of Ag through monolayer and bilayer colloidal crystal template of polystyrene spheres, followed by removal of the template. Experimental results reveal that compared with one-tier Ag through-void arrays, two-tier Ag through-void arrays show largely improved sensitivity and figure of merit( FOM), which reach 559.71 nm/RIU( RIU: Refractive index unit) and 14.28 RIU-1 , respectively. These suggests a low cost, feasible way for the fabrication of high quality EOT-based plasmonic sensor using routine techniques in which the tools used are accessible to most researchers.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2015年第12期2511-2515,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:91027037,J1210040)资助~~
关键词
表面等离子体
通孔阵列
模板电沉积
自组装
折射率传感
Surface plasmon
Through-void array
Template electrodeposition
Self-assembly
Refractive index sensor