WANG Xue-pei, WEI Heng-yong, WU Ming-ming etc. Preparation of Mo<sub>2</sub>N/TiN Composite Films and Their Surface Enhanced Raman Spectroscopy[J]. Chinese Journal of Luminescence, 2019,40(12): 1460-1468
WANG Xue-pei, WEI Heng-yong, WU Ming-ming etc. Preparation of Mo<sub>2</sub>N/TiN Composite Films and Their Surface Enhanced Raman Spectroscopy[J]. Chinese Journal of Luminescence, 2019,40(12): 1460-1468 DOI: 10.3788/fgxb20194012.1460.
Preparation of Mo2N/TiN Composite Films and Their Surface Enhanced Raman Spectroscopy
N/TiN composite thin films were prepared by ammonia reduction nitridation method using titanium tetrachloride and molybdenum pentachloride as materials. The composition
morphology and surface enhanced Raman spectroscopy of the composite films were studied through XRD
XPS
SEM
UV-Vis and Raman testing. The results indicated that the TiN and Mo
2
N coexisted in the composite film. With the increase of molybdenum pentachloride content
there was an obvious resonance absorption peak in the range of 400-600 nm
and the absorption peak intensity and peak width increased. The surface enhanced Raman spectroscopy properties of Mo
2
N/TiN composite films were studied using Rhodamine 6G as probe molecule. When the addition amount of the molybdenum pentachloride was 6%
the Raman enhancement effect of the composite films was the best
and the detection limit was 10
-5
mol/L. Raman enhancement factor was 0.3110
3
. Meanwhile the surface enhanced Raman performance decreased only 20.76% after it was stored in air for 6 months. At the same time
the composite films had high temperature stability
and they still had surface enhanced Raman characteristics after annealing at 500℃
therefore
they have the potential of reuse as SERS substrate.
关键词
Keywords
references
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