DOI: 10.1063/1.3292027. On the origin of suppression of free exciton no-phonon emission in ZnO tetrapods

On the origin of suppression of free exciton no-phonon emission in ZnO tetrapods

10.1063/1.3292027

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Temperature dependent photoluminescence and cathodoluminescence (CL) spectroscopies are employed to investigate free exciton (FX) emissions in ZnO tetrapods. The intensity of the no-phonon line is found to be largely suppressed as compared with longitudinal optical phonon assisted transitions, in sharp contrast to bulk ZnO. From spatially resolved CL studies, this suppression is shown to strongly depend on structural morphology of the ZnO tetrapods and becomes most significant within areas with faceted surfaces. A model based on reabsorption due to multiple internal reflections in the vicinity of the FX resonance is suggested to account for the observed effect.

Bibliography

Chen, S. L., Lee, S. K., Chen, W. M., Dong, H. X., Sun, L., Chen, Z. H., & Buyanova, I. A. (2010). On the origin of suppression of free exciton no-phonon emission in ZnO tetrapods. Applied Physics Letters, 96(3).

Authors 7

S. L. Chen (first)
S. K. Lee (additional)
W. M. Chen (additional)
H. X. Dong (additional)
L. Sun (additional)
Z. H. Chen (additional)
I. A. Buyanova (additional)

References 22 Referenced 12

10.1063/1.1992666 / J. Appl. Phys. (2005)
10.1002/pssb.200743072 / Phys. Status Solidi A (2007)
10.1088/0953-8984/16/7/R03 / J. Phys Condens. Matter (2004)
10.1126/science.1060367 / Science (2001)
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10.1002/smll.200600134 / Small (2006)
10.1103/PhysRevLett.100.156403 / Phys. Rev. Lett. (2008)
10.1016/j.ssc.2004.05.043 / Solid State Commun. (2004)
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Dates

Type	When
Created	15 years, 7 months ago (Jan. 19, 2010, 6:19 p.m.)
Deposited	2 years, 2 months ago (June 22, 2023, 8:34 p.m.)
Indexed	4 weeks ago (July 30, 2025, 6:54 a.m.)
Issued	15 years, 7 months ago (Jan. 18, 2010)
Published	15 years, 7 months ago (Jan. 18, 2010)
Published Online	15 years, 7 months ago (Jan. 19, 2010)
Published Print	15 years, 7 months ago (Jan. 18, 2010)

Funders 0

None

BibTeX

@article{Chen_2010, title={On the origin of suppression of free exciton no-phonon emission in ZnO tetrapods}, volume={96}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3292027}, DOI={10.1063/1.3292027}, number={3}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Chen, S. L. and Lee, S. K. and Chen, W. M. and Dong, H. X. and Sun, L. and Chen, Z. H. and Buyanova, I. A.}, year={2010}, month=jan }

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