DOI: 10.1063/1.1316069. Excitonic gain and stimulated ultraviolet emission in nanocrystalline zinc-oxide powder

Excitonic gain and stimulated ultraviolet emission in nanocrystalline zinc-oxide powder

10.1063/1.1316069

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We have studied ultraviolet photoluminescence from high-purity zinc-oxide powder over a wide temperature range (2–293 K). At low temperatures, the spontaneous emission is due to radiative recombination of excitons bound to donors and acceptors. At high temperature (&gt;90 K), it mainly consists of recombination of free excitons, with exciton–exciton collision-induced recombination dominating the spectrum at higher pumping intensities. Emission from the exciton–exciton collision process shows clear stimulated-emission behavior. At sufficiently high pumping intensity, the stimulated emission band shifts abruptly to a longer wavelength due to the formation of an electron–hole plasma. Sharp emission peaks are observed in the stimulated emission bands. The possible origins of these sharp peaks are discussed.

Bibliography

Sun, Y., Ketterson, J. B., & Wong, G. K. L. (2000). Excitonic gain and stimulated ultraviolet emission in nanocrystalline zinc-oxide powder. Applied Physics Letters, 77(15), 2322â2324.

Authors 3

Y. Sun (first)
J. B. Ketterson (additional)
G. K. L. Wong (additional)

References 14 Referenced 102

10.1016/S0038-1098(97)00216-0 / Solid State Commun. (1997)
10.1063/1.121620 / Appl. Phys. Lett. (1998)
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10.1016/0038-1098(96)00340-7 / Solid State Commun. (1996)
{'key': '2024020318545645600_r4', 'first-page': 'U294', 'volume': '4', 'year': '1999', 'journal-title': 'MRS Internet J. Nitride Semicond. Res.'} / MRS Internet J. Nitride Semicond. Res. (1999)
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{'key': '2024020318545645600_r11'}
{'key': '2024020318545645600_r12'}
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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:41 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 1:55 p.m.)
Indexed	1 year, 1 month ago (July 5, 2024, 5:17 p.m.)
Issued	24 years, 10 months ago (Oct. 9, 2000)
Published	24 years, 10 months ago (Oct. 9, 2000)
Published Print	24 years, 10 months ago (Oct. 9, 2000)

Funders 0

None

BibTeX

@article{Sun_2000, title={Excitonic gain and stimulated ultraviolet emission in nanocrystalline zinc-oxide powder}, volume={77}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1316069}, DOI={10.1063/1.1316069}, number={15}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Sun, Y. and Ketterson, J. B. and Wong, G. K. L.}, year={2000}, month=oct, pages={2322–2324} }

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