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Cited by 193

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Morphology-Dependent Stimulated Emission and Field Emission of Ordered CdS Nanostructure Arrays

Zhai, Tianyou, Fang, Xiaosheng, Bando, Yoshio, Liao, Qing, Xu, Xijin, Zeng, Haibo, Ma, Ying, Yao, Jiannian, Golberg, Dmitri·2009·ACS Nano

Abstract

Highly ordered CdS nanostructure arrays were successfully fabricated via a simple two-step metal-organic chemical vapor deposition process. Both stimulated emission and field-emission measurements were carried out in an attempt to understand the correlation between the morphologies, alignments, and emission performances of five ordered CdS nanostructure array types (well-aligned truncated nanocones, nanorods, cleft nanorods, quasi-aligned nanowires, and nanowires). The 1D CdS nanostructures of various types displayed notable differences in stimulated and field-emission performances. The stimulated emission strongly correlated with the structure alignment: the better the alignment, the lower the threshold. Both of the alignments and aspect ratios greatly affected the field-emission properties; the CdS emitters of higher aspect ratio and better alignment exhibited better field-emission performance. Thus the well-aligned CdS nanorod arrays had the lower threshold for stimulated emission, and quasi-aligned nanowire arrays produced the higher field-emission current and possessed the lower turn-on fields.

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Metadata

Authors
Zhai, T., Fang, X., Bando, Y., Liao, Q., Xu, X., Zeng, H., Ma, Y., Yao, J., & Golberg, D.
Venue
ACS Nano
Published
2009-03-23
Volume
3
Issue
4
Pages
949-959
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W2025803275
Cited by
193
References
2
FWCI
15.14
Type
journal article
Language
en
Open access
closed

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