UV pump-THz probe study of mechanisms limiting luminescence from nanoscale compositionally inhomogeneous AlGaN

We present ultraviolet pump-terahertz probe and photoconductive decay measurements on nanoscale compositionally inhomogeneous AlGaN. Results compared to photoluminescence and time-resolved photoluminescence measurements indicate luminescence from the material is limited by hole trapping.

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Bibliographische Detailangaben
Hauptverfasser:	Metcalfe, Grace D., Garrett, Gregory A., Rotella, Paul, Sampath, Anand V., Wright, Jonathan, Hongen Shen, Wraback, Michael, Sweeney, Timothy M., Hailin Wang
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Aluminum gallium nitride Charge carrier processes Luminescence Materials Probes Semiconductor device measurement Wavelength measurement
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Beschreibung
Zusammenfassung:	We present ultraviolet pump-terahertz probe and photoconductive decay measurements on nanoscale compositionally inhomogeneous AlGaN. Results compared to photoluminescence and time-resolved photoluminescence measurements indicate luminescence from the material is limited by hole trapping.
ISSN:	2160-8989 2160-9004
DOI:	10.1364/CLEO_AT.2011.JTuB3