Details

Autor(en) / Beteiligte

• Micheletto, Ruggero
• Abiko, Masayoshi
• Kaneta, Akio
• Kawakami, Yoichi
• Narukawa, Yukio
• Mukai, Takashi

Titel

Observation of optical instabilities in the photoluminescence of InGaN single quantum well

Ist Teil von

• Applied physics letters, 2006-02, Vol.88 (6), p.061118-061118-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2006

Link zum Volltext

Quelle

AIP Journals Complete

Beschreibungen/Notizen

• We investigate a peculiar optical instability (blinking) phenomena associated with spatial inhomogeneity in In x Ga ( 1 − x ) N single quantum well systems. We studied the time dependence of this dynamic phenomenon and tested a "quantum jump" single exponential model on the system. A comparative analysis of the behavior of different samples suggests that indium-rich localized centers participate in the mechanism of blinking and that the instability behavior differs with the excitation wavelength. Our study indicates that the trapping and de-trapping process between the localized-luminescent centers and surrounding less luminous regions plays important roles in the carrier recombination mechanism.