STIMULATED-EMISSION WITH THE LONGEST WAVELENGTH IN THE BLUE REGION FROM GAINN GAN MULTIQUANTUM-WELL STRUCTURES/

The structural and optical properties of GaInN single layer and GaInN multi-quantum well (MQW) structures were investigated. Room temperatur e stimulated emission with the longest wavelength in the blue region b y optical pumping is observed from a GaInN/GaN MQW for the first time. The compositional dependence of the emission properties of GaInN stra ined MQW structures with different InN molar fractions has also teen d iscussed. It was found that the quantum-confined Stark effect due to t he intrinsic piezoelectric field has a serious effect on the optical p roperties of nitride-based MQW. (C) 1998 Published by Elsevier Science B.V. All rights reserved.