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Room-Temperature Lasing Characteristics of Zinc Sulfide Single Nanoribbons

Published online by Cambridge University Press:  21 March 2011

J. A. Zapien ,
Y. Jiang ,
X.-M. Meng ,
W. Chen ,
Y. Lifshitz  and
S.-T. Lee
J. A. Zapien
Affiliation:
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
Y. Jiang
Affiliation:
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
X.-M. Meng
Affiliation:
Technical Institute of Physics and Chemistry, Beijing, China
W. Chen
Affiliation:
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
Y. Lifshitz
Affiliation:
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China On leave from Soreq NRC, Yavne 81800, Israel
S.-T. Lee
Affiliation:
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
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Abstract

We present a study of the photoluminescence and lasing characteristics of individual single-crystal zinc sulfide nanoribbons. We show that ZnS presents optical gain at the near band gap emission of ∼338 nm. Optical gain together with the optical cavity defined by the perfect crystallographic structure with a rectangular cross section results in lasing activity at optical pumping power densities of ∼ 50 kW/cm2. Small collection angle measurements show that nanoribbons form excellent optical cavities and gain medium with record (FWHM<0.1nm) lasing modes free of PL background. Large collection angles (as previously employed for nanowire measurements) add a broad, non-resonant PL component and obscure the original high-quality lasing of the nanowires/nanoribbons.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 818: Symposium M – Nanoparticles and Nanowire Building Blocks-Synthesis, Processing, Characterization and Theory , 2004 , M8.21.1
Copyright
Copyright © Materials Research Society 2004

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