Raman spectroscopy

Overview

Brief introduction to Raman spectroscopy of materials

Laser writing of nanostructured silicon arrays for the SERS detection of biomolecules with inhibited oxidation

The present work reports the processing of laser irradiated Si arrays (LISi) and underlines their surface enhanced Raman scattering (SERS) functionality. A nanostructured Si/SiOx surface forms providing additional fluidic and photoprotective …

Nanostructural changes upon substitutional Al doping in ZnO sputtered films

Al:ZnO layers, with low and high Al content, 0.2% and 2.1% cat. respectively, have been prepared using the RF magnetron sputtering technique. Noticeable differences in the optical and electrical properties have been detected in these films. With …

Lattice damage in 9-MeV-carbon irradiated diamond and its recovery after annealing

We have studied the radiation damage in diamond as a function of layer depth upon self-ion implantation with 9-MeV carbon ions and its recovery after annealing at $1000^\circ$C. Raman and photoluminescence spectra show substantial damage of the …

Micro-Raman spectroscopy of near-surface damage in diamond irradiated with 9-MeV boron ions

We have studied the near-surface damage in a diamond crystal caused by irradiation with swift boron ions and its healing after high-temperature annealing. A diamond crystal was irradiated with 9-MeV $^{11}$B$^{3+}$ ions with fluence values between $1 …

The apparent variability of silkworm (Bombyx mori) silk and its relationship with degumming

Abstract As spun silkworm (Bombyx mori) silk fibers were compared in terms of their tensile behavior and microstructure with fibers subjected to different degumming treatments. Fibers were initially retrieved by forced silking directly from the worms …

Differences in n-type doping efficiency between Al- and Ga-ZnO films

A careful and wide comparison between Al and Ga as substitutional dopants in the ZnO wurtzite structure is presented. Both cations behave as n-type dopants and their inclusion improves the optical and electrical properties of the ZnO matrix, making …

High quality ZnO and Ga:ZnO thin films grown onto crystalline Si (100) by RF magnetron sputtering

Undoped and 2% Ga-doped ZnO films have been deposited by RF magnetron sputtering onto single crystal Si (100) substrates equivalent to the commercial Si solar cells. The same films were also grown on amorphous silica substrates to complete their …

DC substrate bias effects on the physical properties of hydrogenated amorphous carbon films grown by plasma-assisted chemical vapour deposition

In the present work, $a$-C:H films have been grown from argon/methane gas mixtures by Electron Cyclotron Resonance Chemical Vapour Deposition (ECRCVD). The effect of the application of a dc bias voltage to the silicon substrate material on the …

Phonon-plasmon coupling in electron surface accumulation layers in InN nanocolumns

Raman measurements in high quality InN nanocolumns display a coupled LO phonon-plasmon mode together with uncoupled phonons. The coupled mode is attributed to the spontaneous accumulation of electrons on the lateral surfaces of the nanocolumns. For …