Optical properties of InGaN based multiple quantum wells on low threading dislocation density GaN films fabricated by air‐bridged lateral epitaxial growth
Autor: | Akihiko Ishibashi, Yasutoshi Kawaguchi, Tsunemasa Taguchi, Gaku Sugahara, Yoichi Yamada, Toshiya Yokogawa |
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Rok vydání: | 2003 |
Předmět: | |
Zdroj: | physica status solidi (c). :2116-2119 |
ISSN: | 1610-1634 |
DOI: | 10.1002/pssc.200303491 |
Popis: | We have systematically studied radiative and nonradiative recombination processes by time-resolved photoluminescence (TR-PL) measurements in InGaN based multiple quantum wells (MQWs) with various In content or Si doping conditions of barrier layers on low-threading dislocaton (TD) density GaN films fabricated by (ABLEG). Temperature dependences of PL decay times and PL intensities indicate that the localization of photo-excited carriers and the nonradiative recombination process are suppressed by using Si-doped InGaN barriers in InGaN based MQWs on low TD density ABLEG-GaN films. |
Databáze: | OpenAIRE |
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