Diameter Control and Photoluminescence of ZnO Nanorods from Trialkylamines

Andelman, Tamar; Gong, Yinyan; Neumark, Gertrude; O'Brien, Stephen

doi:https://doi.org/10.1155/2007/73824

Journal of Nanomaterials

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Research Article | Open Access

Volume 2007 | Article ID 073824 | https://doi.org/10.1155/2007/73824

Diameter Control and Photoluminescence of ZnO Nanorods from Trialkylamines

Tamar Andelman,¹Yinyan Gong,¹Gertrude Neumark,¹and Stephen O'Brien¹

Academic Editor: Ping Xiao

Received16 Feb 2007

Accepted25 Apr 2007

Published03 Jun 2007

Abstract

A novel solution method to control the diameter of ZnO nanorods is reported. Small diameter (2-3 nm) nanorods were synthesized from trihexylamine, and large diameter (50–80 nm) nanorods were synthesized by increasing the alkyl chain length to tridodecylamine. The defect (green) emission of the photoluminescence (PL) spectra of the nanorods varies with diameter, and can thus be controlled by the diameter control. The small ZnO nanorods have strong green emission, while the large diameter nanorods exhibit a remarkably suppressed green band. We show that this observation supports surface oxygen vacancies as the defect that gives rise to the green emission.

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Copyright

Copyright © 2007 Tamar Andelman et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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