Photoluminescence Properties of InGaN/GaN Multiple Quantum Well Light Emitting Diodes by Metalorganic Chemical Vapor Deposition
Luminescence properties of blue emission InGaN/GaN multiple quantum well (MQW) light emitting diodes (LEDs), grown on sapphire substrates by metal organic chemical vapor deposition (MOCVD), were studied by time-resolved photoluminescence (TRPL) spectroscopic technique. Samples involved have similar basic structures of three QWs but different well-composition and barrier/well dimensions. TRPL results show that PL intensity and decay time increase with the number of QWs and the indium composition. Correlation of physical properties with crystalline perfection open the way for optimized designs of InGaN MQW LED, with controlled the indium composition and QW numbers.
Shiquan Liu and Min Zuo
T. W. Kuo et al., "Photoluminescence Properties of InGaN/GaN Multiple Quantum Well Light Emitting Diodes by Metalorganic Chemical Vapor Deposition", Advanced Materials Research, Vols. 306-307, pp. 1133-1137, 2011