Highly sensitive superhydrophobic Ag nanorods array substrates for surface enhanced fluorescence studies

作者：Kumar Samir; Goel Pratibha; Singh Dhruv P; Singh J P^*

来源：Applied Physics Letters, 2014, 104(2): 023107.

DOI：10.1063/1.4861836

We report a facile method to fabricate highly sensitive superhydrophobic Ag nanorods (AgNR) arrays based surface enhanced fluorescence spectroscopy (SEFS) substrates using glancing angle deposition technique at a substrate temperature of 133 K and then subsequent coating of heptadecafluoro-1-decanethiol (HDFT) molecules. The SEFS enhancement behaviour of these substrates was determined by using aqueous solution of Rhodamine 6G. The HDFT coated superhydrophobic AgNR arrays SEFS substrates exhibit more then 3-fold fluorescence signal enhancement than conventional AgNR films. These HDFT coated superhydrophobic AgNR SEFS substrates based sensors may find application for the purpose of trace analysis and biosensing.

• 出版日期2014-1-13