Improvement in the luminous efficiency of MEH-PPV based light emitting diodes using zinc oxide nanorods grown by the electrochemical deposition technique on ITO substrates

Gupta, R.B. and Kumar, Jitender and Madhwal, Devinder and Singh, Inderpreet and Kaur, Inderpreet and Bharadwaj, L.M. and Nagpal, S. and Bhatnagar, P.K. and Mathur, P.C. (2011) Improvement in the luminous efficiency of MEH-PPV based light emitting diodes using zinc oxide nanorods grown by the electrochemical deposition technique on ITO substrates. Physica Scripta, 84 (1). pp. 1-6. ISSN 0031-8949

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Abstract

Zinc oxide (ZnO) nanorods grown by the electrochemical technique have been used to enhance the luminance of poly[2-methoxy-5-(2'-ethylhexoxy)-1,4-phenylenevinylene] (MEH-PPV)-based polymer light-emitting diodes. The luminance of the device with ZnO nanorods is found to increase by more than two times as compared with the device without ZnO nanorods. The diameter of the nanorods used in device fabrication was ~145 nm. The size of the nanorods was estimated from field emission scanning electron microscope images. Optical and structural characterizations of the nanorods were also performed by using absorption, photoluminescence and x-ray diffraction, confirming the formation of ZnO nanorods.

Item Type: Article
Subjects: CSIO > Applied Physics
Depositing User: Ms. J Shrivastav
Date Deposited: 21 Apr 2012 22:57
Last Modified: 21 Apr 2012 22:57
URI: http://csioir.csio.res.in/id/eprint/278

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