In:
Journal of Nanoscience and Nanotechnology, American Scientific Publishers, Vol. 8, No. 3 ( 2008-03-01), p. 1341-1345
Abstract:
Electroluminescence was obtained from an indium-tin-oxide/poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV): ZnSe/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP)/8-tris-hydroxyquinoline (Alq 3 )/LiF/Al structured device, in which ZnSe nanocrystals
were synthesized in aqueous solution by using mercapto-acetate acid as stabilizer. The mechanical, electrical, and optical properties of the device were established. The photoluminescence and electroluminescence spectra changed with the mass ratio of ZnSe to MEH-PPV in the composite. Comparison between the absorption spectra and photoluminescence spectra of the ZnSe nanocrystals and the MEH-PPV thin film exhibited an effective energy transfer from ZnSe nanocrystals to MEH-PPV, which was one reason for the difference between the photoluminescence and electroluminescence spectra of
the MEH-PPV: ZnSe composite film. The recombination mechanism of ZnSe nanocrystals under photo excitation and electric injection was investigated with the help of a single layer device structure of indium-tin-oxide/ZnSe/LiF/Al.
Type of Medium:
Online Resource
ISSN:
1533-4880
DOI:
10.1166/jnn.2008.18193
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2008
SSG:
11
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