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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 9 — May. 1, 2014
  • pp: 2633–2636

Heterojunction of ZnO nanoparticle/PMMA and its ultraviolet electroluminescence

Song Gao, Su-Ling Zhao, Zheng Xu, Yi-Fan Yang, Zhi-Min Liu, and Xiao-Yi Xie  »View Author Affiliations


Optics Letters, Vol. 39, Issue 9, pp. 2633-2636 (2014)
http://dx.doi.org/10.1364/OL.39.002633


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Abstract

A ZnO nanoparticle layer was synthesized by the sol-gel method on ITO glass. Devices with a ZnO nanoparticle layer/polymethylmethacrylate (PMMA) heterojunction structure were then fabricated and the room temperature electroluminescence (EL) spectra were studied. Under DC bias, ultraviolet (UV) EL at 390 nm from the ZnO band edge emission was observed, and defect-related emission of ZnO at 600 and 760 nm were also detected. The EL mechanisms are discussed in terms of the carrier tunneling process.

© 2014 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.0250) Optoelectronics : Optoelectronics
(260.3800) Physical optics : Luminescence
(260.7190) Physical optics : Ultraviolet

ToC Category:
Physical Optics

History
Original Manuscript: February 26, 2014
Manuscript Accepted: March 23, 2014
Published: April 22, 2014

Citation
Song Gao, Su-Ling Zhao, Zheng Xu, Yi-Fan Yang, Zhi-Min Liu, and Xiao-Yi Xie, "Heterojunction of ZnO nanoparticle/PMMA and its ultraviolet electroluminescence," Opt. Lett. 39, 2633-2636 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-9-2633

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