We report on the modification in the density of states of a multi-quantum well system of InGaN/GaN-based light emitting diodes. The modification was induced by dc current stress at I = 50 mA (current density J = 55 A cm−2) with stress times up to 100 h. The samples were characterized by means of current–voltage and capacitance–voltage, and photocurrent spectroscopy at different stress stages. We observed a progressive redistribution of the conduction band charge in the multi-quantum well system, along with a modification of the shape of the photocurrent spectrum.

L Rigutti, L Basiricò, A Cavallini, M Meneghini, G Meneghesso, E Zanoni (2009). Redistribution of multi-quantum well states induced by current stress in InxGa1−xN/GaN light-emitting diodes. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 24, 055015-055019 [10.1088/0268-1242/24/5/055015].

Redistribution of multi-quantum well states induced by current stress in InxGa1−xN/GaN light-emitting diodes

RIGUTTI, LORENZO;BASIRICO', LAURA;CAVALLINI, ANNA;
2009

Abstract

We report on the modification in the density of states of a multi-quantum well system of InGaN/GaN-based light emitting diodes. The modification was induced by dc current stress at I = 50 mA (current density J = 55 A cm−2) with stress times up to 100 h. The samples were characterized by means of current–voltage and capacitance–voltage, and photocurrent spectroscopy at different stress stages. We observed a progressive redistribution of the conduction band charge in the multi-quantum well system, along with a modification of the shape of the photocurrent spectrum.
2009
L Rigutti, L Basiricò, A Cavallini, M Meneghini, G Meneghesso, E Zanoni (2009). Redistribution of multi-quantum well states induced by current stress in InxGa1−xN/GaN light-emitting diodes. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 24, 055015-055019 [10.1088/0268-1242/24/5/055015].
L Rigutti; L Basiricò; A Cavallini; M Meneghini; G Meneghesso; E Zanoni
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/84386
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