Suppressing nonradiative recombination in crown-shaped quantum wells

We examined the structural and optical properties of a crown-shaped quantum well (CSQW) to suppress nonradiative recombination. To reduce carrier loss in defect traps at the well/barrier interface, the CSQW was designed to concentrate carriers in the central region by tailoring the bandgap energy. T...

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Veröffentlicht in:	Japanese Journal of Applied Physics 2018-03, Vol.57 (3), p.30305
Hauptverfasser:	Ju, Gunwu, Na, Byung Hoon, Park, Kwangwook, Hwang, Hyeong-Yong, Jho, Young-Dahl, Myoung, NoSoung, Yim, Sang-Youp, Kim, Hyung-jun, Lee, Yong Tak
Format:	Artikel
Sprache:	eng
Schlagworte:	activation energy band gap energy Carrier density Carrier lifetime CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS defect traps defects high temperature MATERIALS SCIENCE non-radiative recombinations Optical properties Photoluminescence potential fluctuations Quantum wells semiconductor quantum wells structural and optical properties Temperature dependence temperature dependent photoluminescences Variations
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