Insights on the enhanced Raman scattering of monolayer TMDCs (Mo, W)(S, Se)2 with Ag nanoparticles via rapid thermal annealing

2020 ◽  
Vol 520 ◽  
pp. 146367
Author(s):  
Guofeng Yang ◽  
Xiudong Fang ◽  
Yan Gu ◽  
Aaron Danner ◽  
Feng Xie ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Ag Nanoparticles ◽  
Enhanced Raman Scattering

scholarly journals Development of Effectual Substrates for SERS by Nanostructures-on flexible surfaces

2021 ◽  
Vol 2114 (1) ◽  
pp. 012084
Author(s):  
Hammad R. Humud ◽  
Fatimah Jumaah Moaen
Keyword(s):  
Raman Scattering ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Wave Number ◽  
Plasmonic Nanostructures ◽  
Sers Substrate ◽  
Two Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Abstract The current study examines recent advancements in surface-enhanced Raman scattering (SERS), a technique that employs flexible surfaces as an active substrate, this surfaces consist from two-dimensional thermo-plasmonic grating. With 53 nm Au layer (was deposited on the 2D grating structure of the PDMS by the PVD method). The explosive wire technique was used to preparing Ag nanoparticles that were used for the purpose of SERS. The effect of the plasmonic nanostructures on the absorption spectra and Surface - Enhanced Raman Scattering (SERS) activities was examined. Rhodamine 6G dye was used as a probe molecule. X-Ray diffraction (XRD) was used to examine the structural characteristics of the nanoparticles. The morphology was assessed using Field Emission Scanning Electron Microscopy(FESEM). A twin beam UV-Vis Spectrophotometer was used to measure the absorption of the combined Rh6G dye (concentration 1×10“–6M) with the nanostructures. a Sunshine Raman microscope system and a 50mm objective lens, used for investigating the Raman spectra of the Rh6G combined with nanostructures. The results showed that the enhancement factor (EF) for SERS of R6G (1×M) reached to (2.2×10 3) When using Ag nanoparticles and (0.08 × 103) when R6G deposited directly on the flexible substrates without nanostructures at the wave number (1650 cm−1), we produced a recyclable, homogeneous, and highly sensitive SERS substrate with dependable reproducibility. For the SERS substrate, a surface made up of two-dimensional (2D) flexible grating substrates was chosen to provide multiple modalities in electrical and medicinal applications.

Raman Scattering Study of Mixing of GaAs/AlAs Superlattices by Ion Implantation and Rapid Thermal Annealing

1986 ◽  
Vol 69 ◽  
Author(s):  
D. Kirillov ◽  
P. Ho ◽  
G. A. Davis
Keyword(s):  
Ion Implantation ◽  
Raman Scattering ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Damaged Material ◽  
Different Types ◽  
Scattering Study

AbstractRaman scattering was applied to study mixing of GaAs/AlAs superlattices. Different implantation ions and doses were used. The evolution from partially amorphous to completely amorphous and from partially mixed to completely mixed structures was observed. Rapid thermal annealing caused recrystallization of the damaged material. Different types of structures were obtained, depending on the implantation doses and species of ions. Completely mixed crystalline alloys could be obtained only for high implantation doses.

Sign in / Sign up

Export Citation Format

Share Document