Observation of room temperature photoluminescence from asymmetric CuGaO2/ZnO/ZnMgO multiple quantum well structures

All of RECERCAT

To access the full text documents, please follow this link: http://hdl.handle.net/2445/61843

Title:	Observation of room temperature photoluminescence from asymmetric CuGaO2/ZnO/ZnMgO multiple quantum well structures
Author:	Aneesh, P. M.; Jayaraj, M. K.; Reshmi, R.; Ajimsha R. S.; Kukreja, L. M.; Antony, Aldrin; Rojas Tarazona, Fredy Enrique; Bertomeu i Balagueró, Joan; López Vidrier, Julià; Hernández Márquez, Sergi
Other authors:	Universitat de Barcelona
Abstract:	Asymmetric (CuGaO2/ZnO/ZnMgO) and symmetric (ZnMgO/ZnO/ZnMgO) multiple quantum well (MQW) structures were successfully fabricated using pulsed laser deposition (PLD) and their comparison were made. Efficient room temperature photoluminescent (PL) emission was observed from these MQWs and temperature dependent luminescence of asymmetric and symmetric MQWs can be explained using the existing theories. A systematic blue shift was observed in both MQWs with decrease in the confinement layer thickness which could be attributed to the quantum confinement effects. The PL emission from asymmetric and symmetric MQW structures were blue shifted compared to 150 nm thick ZnO thin film grown by PLD due to quantum confinement effects.
Subject(s):	-Luminescència -Teoria quàntica -Nanoestructures -Pel·licules fines -Semiconductors -Làsers
Rights:	(c) American Scientific Publishers, 2015
Document type:	Article Article - Published version
Published by:	American Scientific Publishers
Share: