Confocal scanning laser microscopy was used for the first time to obtain the submicron-scale photoluminescence (PL) of InGaN/GaN single quantum wells (SQWs). We found island-shaped spatial inhomogeneities of both PL intensities and spectra as small as 100-200 nm. The spatial resolution of the obtained PL images was much smaller than the diffusion length of carriers in active layers at room temperature.
|Number of pages||2|
|Journal||Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers|
|Publication status||Published - Feb 2004|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)