The preparation of silver nanoparticle decorated silica nanowires on fused quartz as reusable versatile nanostructured surface-enhanced Raman scattering substrates.
We introduce a platform, comprised of silver nanoparticle decorated silica nanowires (SiONWs) dispersed on fused quartz substrates, for high sensitivity surface-enhanced Raman scattering (SERS) measurements using both frontal (through the analytes) and back-face (through the transparent substrate) excitation. Quasi-quantitative SERS performances on the specialized substrate, vis-à-vis a silver deposited bare fused quartz plate, showed: (i) the suitability of the Ag modified SiONW substrate for frontal as well as back-face excitation; (ii) a wider detection range with high sensitivity to Rhodamine 6G; and (iii) good underwater metal-oxide adhesion of the specialized substrates. Capable of surviving ultrasonic cleaning, the substrate introduced is one of the few reusable low-cost Ag-based nanostructured SERS substrates, requiring only a simple silver reload process (the silver mirror reaction).
Hwang
Jih-Shang
JS
Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan. hjsspin@mail.ntou.edu.tw
Chen
Kuan-Yu
KY
Hong
Shih-Jay
SJ
Chen
Shih-Wei
SW
Syu
Wun-Shing
WS
Kuo
Chi-Wen
CW
Syu
Wei-Yi
WY
Lin
Tai Yuan
TY
Chiang
Hai-Pang
HP
Chattopadhyay
Surojit
S
Chen
Kuei-Hsien
KH
Chen
Li-Chyong
LC
D003460:Crystallization / Q000379:methods*; D008027:Light; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D011791:Quartz / Q000737:chemistry*; D012542:Scattering, Radiation; D012822:Silicon Dioxide / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties
D046911:Macromolecular Substances; D011791:Quartz; D012834:Silver; D012822:Silicon Dioxide