Cathodoluminescence quenching in Yb-doped ZnO nanostructures

A. Susarrey-Arce; M. Herrera-Zaldívar; W. de la Cruz; U. Pal

doi:10.4028/www.scientific.net/JNanoR.5.177

Cathodoluminescence quenching in Yb-doped ZnO nanostructures

A. Susarrey-Arce, M. Herrera-Zaldívar^*, W. de la Cruz, U. Pal

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

Cathodoluminescence (CL) quenching was observed in ZnO nanostructures when doped with Yb by both chemical and physical methods. CL spectra of the samples revealed a defect emission at 2.25 eV in samples prepared by the chemical method, and an emission at 2.5 eV in samples prepared by the physical method. From the thermal treatment studies, it was found that oxygen vacancies are responsible for the 2.5 eV emission. Observed CL quenching in ZnO is explained through the participation of point defects in the energy transfer process from ZnO to Yb3+.

Original language	English
Pages (from-to)	177-183
Number of pages	7
Journal	Journal of nano research
Volume	5
DOIs	https://doi.org/10.4028/www.scientific.net/JNanoR.5.177
Publication status	E-pub ahead of print/First online - Feb 2009
Externally published	Yes

Keywords

Cathodoluminescence
Yb-Doping
ZnO Nanostructure
n/a OA procedure

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10.4028/www.scientific.net/JNanoR.5.177

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title = "Cathodoluminescence quenching in Yb-doped ZnO nanostructures",

abstract = "Cathodoluminescence (CL) quenching was observed in ZnO nanostructures when doped with Yb by both chemical and physical methods. CL spectra of the samples revealed a defect emission at 2.25 eV in samples prepared by the chemical method, and an emission at 2.5 eV in samples prepared by the physical method. From the thermal treatment studies, it was found that oxygen vacancies are responsible for the 2.5 eV emission. Observed CL quenching in ZnO is explained through the participation of point defects in the energy transfer process from ZnO to Yb3+. ",

keywords = "Cathodoluminescence, Yb-Doping, ZnO Nanostructure, n/a OA procedure",

author = "A. Susarrey-Arce and M. Herrera-Zald{\'i}var and {de la Cruz}, W. and U. Pal",

year = "2009",

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doi = "10.4028/www.scientific.net/JNanoR.5.177",

language = "English",

volume = "5",

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TY - JOUR

T1 - Cathodoluminescence quenching in Yb-doped ZnO nanostructures

AU - Susarrey-Arce, A.

AU - Herrera-Zaldívar, M.

AU - de la Cruz, W.

AU - Pal, U.

PY - 2009/2

Y1 - 2009/2

N2 - Cathodoluminescence (CL) quenching was observed in ZnO nanostructures when doped with Yb by both chemical and physical methods. CL spectra of the samples revealed a defect emission at 2.25 eV in samples prepared by the chemical method, and an emission at 2.5 eV in samples prepared by the physical method. From the thermal treatment studies, it was found that oxygen vacancies are responsible for the 2.5 eV emission. Observed CL quenching in ZnO is explained through the participation of point defects in the energy transfer process from ZnO to Yb3+.

AB - Cathodoluminescence (CL) quenching was observed in ZnO nanostructures when doped with Yb by both chemical and physical methods. CL spectra of the samples revealed a defect emission at 2.25 eV in samples prepared by the chemical method, and an emission at 2.5 eV in samples prepared by the physical method. From the thermal treatment studies, it was found that oxygen vacancies are responsible for the 2.5 eV emission. Observed CL quenching in ZnO is explained through the participation of point defects in the energy transfer process from ZnO to Yb3+.

KW - Cathodoluminescence

KW - Yb-Doping

KW - ZnO Nanostructure

KW - n/a OA procedure

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-65649101929&partnerID=MN8TOARS

U2 - 10.4028/www.scientific.net/JNanoR.5.177

DO - 10.4028/www.scientific.net/JNanoR.5.177

M3 - Article

SN - 1662-5250

VL - 5

SP - 177

EP - 183

JO - Journal of nano research

JF - Journal of nano research

ER -

Cathodoluminescence quenching in Yb-doped ZnO nanostructures

Abstract

Keywords

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