Observation of room temperature photoluminescence from asymmetric CuGaO2/ Zno/ZnMgo multiple quantum well structures

P. M. Aneesh; M. K. Jayaraj; R. Reshmi; R. S. Ajimsha; L. M. Kukreja; A. Aldrin; F. Rojas; J. Bertomeu; J. López-Vidrier; S. Hernández

doi:10.1166/jnn.2015.9497

Observation of room temperature photoluminescence from asymmetric CuGaO₂/ Zno/ZnMgo multiple quantum well structures

P. M. Aneesh
, M. K. Jayaraj
, R. Reshmi
, R. S. Ajimsha
, L. M. Kukreja
, A. Aldrin
, F. Rojas
, J. Bertomeu
, J. López-Vidrier
, S. Hernández

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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.

Original language	English
Pages (from-to)	3944-3950
Number of pages	7
Journal	Journal of Nanoscience and Nanotechnology
Volume	15
Issue number	5
DOIs	https://doi.org/10.1166/jnn.2015.9497 https://doi.org/10.1166/jnn.2015.9497
State	Published - 01 May 2015
Externally published	Yes

Keywords

Asymmetric multiple quantum well structures
Photoluminescence
Pulsed laser ablation
Symmetric multiple quantum well structures znO

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Aneesh, P. M., Jayaraj, M. K., Reshmi, R., Ajimsha, R. S., Kukreja, L. M., Aldrin, A., Rojas, F., Bertomeu, J., López-Vidrier, J., & Hernández, S. (2015). Observation of room temperature photoluminescence from asymmetric CuGaO₂/ Zno/ZnMgo multiple quantum well structures. Journal of Nanoscience and Nanotechnology, 15(5), 3944-3950. https://doi.org/10.1166/jnn.2015.9497, https://doi.org/10.1166/jnn.2015.9497

@article{fa544b3117964f60950244ae0a8c088a,

title = "Observation of room temperature photoluminescence from asymmetric CuGaO2/ Zno/ZnMgo multiple quantum well structures",

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.",

keywords = "Asymmetric multiple quantum well structures, Photoluminescence, Pulsed laser ablation, Symmetric multiple quantum well structures znO",

author = "Aneesh, \{P. M.\} and Jayaraj, \{M. K.\} and R. Reshmi and Ajimsha, \{R. S.\} and Kukreja, \{L. M.\} and A. Aldrin and F. Rojas and J. Bertomeu and J. L{\'o}pez-Vidrier and S. Hern{\'a}ndez",

year = "2015",

month = may,

day = "1",

doi = "10.1166/jnn.2015.9497",

language = "English",

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pages = "3944--3950",

journal = "Journal of Nanoscience and Nanotechnology",

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Aneesh, PM, Jayaraj, MK, Reshmi, R, Ajimsha, RS, Kukreja, LM, Aldrin, A, Rojas, F, Bertomeu, J, López-Vidrier, J & Hernández, S 2015, 'Observation of room temperature photoluminescence from asymmetric CuGaO₂/ Zno/ZnMgo multiple quantum well structures', Journal of Nanoscience and Nanotechnology, vol. 15, no. 5, pp. 3944-3950. https://doi.org/10.1166/jnn.2015.9497, https://doi.org/10.1166/jnn.2015.9497

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AU - Aneesh, P. M.

AU - Jayaraj, M. K.

AU - Reshmi, R.

AU - Ajimsha, R. S.

AU - Kukreja, L. M.

AU - Aldrin, A.

AU - Rojas, F.

AU - Bertomeu, J.

AU - López-Vidrier, J.

AU - Hernández, S.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - 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.

AB - 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.

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KW - Photoluminescence

KW - Pulsed laser ablation

KW - Symmetric multiple quantum well structures znO

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Observation of room temperature photoluminescence from asymmetric CuGaO₂/ Zno/ZnMgo multiple quantum well structures

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Keywords

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