# photoluminescence

## 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 …

## Depth-resolved micro-Raman study of porous silicon at different oxidation states

Photoluminescence ~PL! and Raman spectra were measured along a cross section of porous silicon films at different oxidation times after application of anodic current transients. The average crystallite size was determined from the Raman spectra with …