ZnO/Al2O3 Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property

C. Y. Chen; C. A. Lin; M. J. Chen; G. R. Lin; J. H. He

doi:10.1109/INEC.2010.5424798

ZnO/Al₂O₃ Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property

C. Y. Chen
, C. A. Lin
, M. J. Chen
, G. R. Lin
, J. H. He^*

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

We reported the aqueous chemical method to fabricate the well-aligned ZnO/Al₂O₃ nanocrystal (NC) core-shell nanorod arrays (NRAs). Structural characterization showed that the shell layers are composed of α -Al₂O₃ nanocrystals. Photoluminescence measurements showed the enhancement of near-band-edge (NBE) emission of ZnO NRAs due to the presence of Al₂O₃ NC shells. The Al₂O₃ NC shell layer resulting in flatband effect near ZnO surface leads to a stronger overlap of the wavefunctions of electrons and holes in the ZnO core, further enhancing the NBE emission. This approach should be very useful in designing many other core-shell NRAs for creating varieties of high-efficiency optoelectronic devices.

Original language	English
Title of host publication	INEC 2010
Subtitle of host publication	2010 3^rd International Nanoelectronics Conference, Proceedings
Editors	Paul K Chu
Publisher	IEEE
Pages	1457-1458
ISBN (Electronic)	978-1-4244-3544-9
ISBN (Print)	978-1-4244-3543-2
DOIs	https://doi.org/10.1109/INEC.2010.5424798
Publication status	Published - Jan 2010
Externally published	Yes
Event	3rd IEEE International NanoElectronics Conference (INEC 2010) - City University of Hong Kong, Hong Kong, China Duration: 3 Jan 2010 → 8 Jan 2010 http://www.cityu.edu.hk/ieeeinec/

Publication series

Name	INEC - International Nanoelectronics Conference, Proceedings
Publisher	IEEE
ISSN (Print)	2159-3523
ISSN (Electronic)	2159-3531

Conference

Conference	3rd IEEE International NanoElectronics Conference (INEC 2010)
Place	China
City	Hong Kong
Period	3/01/10 → 8/01/10
Internet address	http://www.cityu.edu.hk/ieeeinec/

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10.1109/INEC.2010.5424798

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Chen, C. Y., Lin, C. A., Chen, M. J., Lin, G. R., & He, J. H. (2010). ZnO/Al₂O₃ Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property. In P. K. Chu (Ed.), INEC 2010: 2010 3^rd International Nanoelectronics Conference, Proceedings (pp. 1457-1458). Article 5424798 (INEC - International Nanoelectronics Conference, Proceedings). IEEE. https://doi.org/10.1109/INEC.2010.5424798

@inproceedings{84e62836777743c2b80688fb9ae047a7,

title = "ZnO/Al2O3 Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property",

abstract = "We reported the aqueous chemical method to fabricate the well-aligned ZnO/Al2O3 nanocrystal (NC) core-shell nanorod arrays (NRAs). Structural characterization showed that the shell layers are composed of α -Al2O3 nanocrystals. Photoluminescence measurements showed the enhancement of near-band-edge (NBE) emission of ZnO NRAs due to the presence of Al2O3 NC shells. The Al2O3 NC shell layer resulting in flatband effect near ZnO surface leads to a stronger overlap of the wavefunctions of electrons and holes in the ZnO core, further enhancing the NBE emission. This approach should be very useful in designing many other core-shell NRAs for creating varieties of high-efficiency optoelectronic devices.",

author = "Chen, \{C. Y.\} and Lin, \{C. A.\} and Chen, \{M. J.\} and Lin, \{G. R.\} and He, \{J. H.\}",

year = "2010",

month = jan,

doi = "10.1109/INEC.2010.5424798",

language = "English",

isbn = "978-1-4244-3543-2",

series = "INEC - International Nanoelectronics Conference, Proceedings",

publisher = "IEEE",

pages = "1457--1458",

editor = "Chu, \{Paul K\}",

booktitle = "INEC 2010",

address = "United States",

note = "3rd IEEE International NanoElectronics Conference (INEC 2010) ; Conference date: 03-01-2010 Through 08-01-2010",

url = "http://www.cityu.edu.hk/ieeeinec/",

}

Chen, CY, Lin, CA, Chen, MJ, Lin, GR & He, JH 2010, ZnO/Al₂O₃ Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property. in PK Chu (ed.), INEC 2010: 2010 3^rd International Nanoelectronics Conference, Proceedings., 5424798, INEC - International Nanoelectronics Conference, Proceedings, IEEE, pp. 1457-1458, 3rd IEEE International NanoElectronics Conference (INEC 2010), Hong Kong, China, 3/01/10. https://doi.org/10.1109/INEC.2010.5424798

ZnO/Al₂O₃ Core-Shell Nanorod Arrays: Growth, Structural Characterization, and Luminescent Property. / Chen, C. Y.; Lin, C. A.; Chen, M. J. et al.
INEC 2010: 2010 3^rd International Nanoelectronics Conference, Proceedings. ed. / Paul K Chu. IEEE, 2010. p. 1457-1458 5424798 (INEC - International Nanoelectronics Conference, Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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T1 - ZnO/Al2O3 Core-Shell Nanorod Arrays

T2 - 3rd IEEE International NanoElectronics Conference (INEC 2010)

AU - Chen, C. Y.

AU - Lin, C. A.

AU - Chen, M. J.

AU - Lin, G. R.

AU - He, J. H.

PY - 2010/1

Y1 - 2010/1

N2 - We reported the aqueous chemical method to fabricate the well-aligned ZnO/Al2O3 nanocrystal (NC) core-shell nanorod arrays (NRAs). Structural characterization showed that the shell layers are composed of α -Al2O3 nanocrystals. Photoluminescence measurements showed the enhancement of near-band-edge (NBE) emission of ZnO NRAs due to the presence of Al2O3 NC shells. The Al2O3 NC shell layer resulting in flatband effect near ZnO surface leads to a stronger overlap of the wavefunctions of electrons and holes in the ZnO core, further enhancing the NBE emission. This approach should be very useful in designing many other core-shell NRAs for creating varieties of high-efficiency optoelectronic devices.

AB - We reported the aqueous chemical method to fabricate the well-aligned ZnO/Al2O3 nanocrystal (NC) core-shell nanorod arrays (NRAs). Structural characterization showed that the shell layers are composed of α -Al2O3 nanocrystals. Photoluminescence measurements showed the enhancement of near-band-edge (NBE) emission of ZnO NRAs due to the presence of Al2O3 NC shells. The Al2O3 NC shell layer resulting in flatband effect near ZnO surface leads to a stronger overlap of the wavefunctions of electrons and holes in the ZnO core, further enhancing the NBE emission. This approach should be very useful in designing many other core-shell NRAs for creating varieties of high-efficiency optoelectronic devices.

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M3 - RGC 32 - Refereed conference paper (with host publication)

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