Diameter Control and Photoluminescence of ZnO Nanorods from Trialkylamines | Zendy

Tamar Andelman | Zendy; Yinyan Gong | Zendy; G. F. Neumark | Zendy; Stephen O’Brien | Zendy

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Diameter Control and Photoluminescence of ZnO Nanorods from Trialkylamines

Author(s) -

Tamar Andelman,

Yinyan Gong,

G. F. Neumark,

Stephen O’Brien

Publication year - 2007

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2007/73824

Subject(s) - nanorod , photoluminescence , materials science , chemical engineering , alkyl , nanotechnology , optoelectronics , organic chemistry , chemistry , engineering

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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