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
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