Lateral diffusion of photogenerated carriers in InGaN/GaN heterostructures observed by PL measurements

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12471

Vierheilig, Clemens ; Braun, H. ; Schwarz, Ulrich ; Wegscheider, Werner ; Baur, E. ; Strauß, U. ; Härle, Volker

PDF
(215kB) - Nur für Mitarbeiter des Archivs

Veröffentlichungsdatum dieses Volltextes: 25 Jan 2010 13:46

Alternative Links zum Volltext:DOI

Details

Bibliographische Daten exportieren

Zusammenfassung

In this paper we present a direct observation of the lateral diffusion of photogenerated carriers in InGaN/GaN quantum wells. The spatial distribution of the photoluminescence around a small exciting laser spot is analyzed by scanning in the focal plane of our confocal microscope. The results of a blue and a green emitting sample at varying excitation densities are discussed in the context of the ...