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Title: Photoluminescence and electroluminescence from copper doped zinc sulphide nanocrystals/polymer composite
Authors: Que, W.
Zhou, Y.
Lam, Y.L.
Chan, Y.C.
Kam, C.H.
Liu, B. 
Gan, L.M. 
Chew, C.H. 
Xu, G.Q. 
Chua, S.J. 
Xu, S.J. 
Mendis, F.V.C. 
Issue Date: 1998
Citation: Que, W., Zhou, Y., Lam, Y.L., Chan, Y.C., Kam, C.H., Liu, B., Gan, L.M., Chew, C.H., Xu, G.Q., Chua, S.J., Xu, S.J., Mendis, F.V.C. (1998). Photoluminescence and electroluminescence from copper doped zinc sulphide nanocrystals/polymer composite. Applied Physics Letters 73 (19) : 2727-2729. ScholarBank@NUS Repository.
Abstract: Cu-doped ZnS nanocrystals were prepared in an inverse microemulsion at room temperature as well as under a hydrothermal condition. X-ray diffraction analysis showed that the diameter of the Cu-doped ZnS nanocrystals particles was about 9 nm. These particles showed a strong photoluminescence intensity and a broad emission band from 490 to 530 nm. The half-width of emission was about 60 nm. Cu-doped ZnS nanocrystals/polymethylmethacrylate composite as a light-emitting layer was used to fabricate a single layer structure electroluminescent device which had low turn on voltage (less than 5 V). The green light of electroluminescence was observed at room temperature. The electroluminescence and photoluminescence spectra were nearly identical at room temperature. © 1998 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.122571
Appears in Collections:Staff Publications

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