EXCITON DYNAMICS IN A NOVEL HIGH-YIELD GAINP QUANTUM-WIRE ARRAY

We report the carrier dynamics in a spontaneously organized array of q uantum wires grown by a novel technique that involves strain induced l ateral ordering (SILO). Our cw-photoluminescence (PL) measurements rev eal a very strong optical anisotropy associated with these wires, whil e the time-resolved PL measurements demonstrate a very interesting car rier dynamics due to localization of excitons and slow interwire scatt ering. The high quality and freedom from defects of the SILO multiple quantum wire array are nicely borne out by the long decay photolumines cence times (similar to 4 ns). (C) 1996 American Institute of Physics.