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Optical property and Stokes' shift of Zn <inf>1-x</inf>Cd <inf>x</inf>O thin films depending on Cd content

Kang, HS and Kim, JW and Kim, JH and Lee, SY and Li, Y and Lee, JS and Lee, JK and Nastasi, MA and Crooker, SA and Jia, QX (2006) Optical property and Stokes' shift of Zn <inf>1-x</inf>Cd <inf>x</inf>O thin films depending on Cd content. Journal of Applied Physics, 99 (6). ISSN 0021-8979

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Abstract

Ternary Zn1-x Cdx O films were grown on (0001) sapphire substrates by pulsed laser deposition. The energy band gap of Zn1-x Cdx O films decreases with increasing Cd content. An increase of Cd content also leads to the emission broadening, absorption edge broadening, and crystallinity degradation. The absorption edge and ultraviolet emission energy shift to lower energy from 3.357 eV to 3.295 eV and 3.338 eV to 3.157 eV, respectively, with increasing Cd content from 0.3% to 3% at 4 K. The Stokes' shift between the absorption and emission is observed and that indicates the increase of exciton localization with Cd content. © 2006 American Institute of Physics.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Kang, HS
Kim, JW
Kim, JH
Lee, SY
Li, Y
Lee, JS
Lee, JKjul37@pitt.eduJUL370000-0002-7778-7679
Nastasi, MA
Crooker, SA
Jia, QX
Centers: Other Centers, Institutes, or Units > Petersen Institute of NanoScience and Engineering
Date: 14 April 2006
Date Type: Publication
Journal or Publication Title: Journal of Applied Physics
Volume: 99
Number: 6
DOI or Unique Handle: 10.1063/1.2186372
Schools and Programs: Swanson School of Engineering > Mechanical Engineering and Materials Science
Refereed: Yes
ISSN: 0021-8979
Date Deposited: 18 Nov 2014 16:03
Last Modified: 05 Feb 2019 19:55
URI: http://d-scholarship.pitt.edu/id/eprint/23474

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