Photochemical modification of an optical fiber tip with a silver nanoparticle film: a SERS chemical sensor.
We present a method of photochemical modification of an optical fiber tip with a silver nanoparticle film. The deposited silver nanoparticle film displays alternating light and dark circles, which are similar to a radial diffraction pattern. The modified optical fiber is examined as a chemical sensor for in situ detection. The modified fibers show excellent SERS activity, a low limit of detection (LOD), and good reproducibility. The maximum SERS activity of the sensor was achieved within 5.0 min of deposition. Thus, the method is also quite rapid.
Zheng
Xianliang
X
State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, PR China.
Guo
Dangwei
D
Shao
Yunliang
Y
Jia
Shaojie
S
Xu
Shuping
S
Zhao
Bing
B
Xu
Weiqing
W
Corredor
Charlie
C
Lombardi
John R
JR