The characteristics of inorganic electroluminescent devices with an amorphous diamond film as cathode material

Diamond like carbon (DLC) thin films were used as the cathode layers of inorganic alternating current driven thick dielectric electroluminescent devices. The results indicated that electroluminescent (EL) devices with DLC cathode has superior brightness over the EL with Al or Cr-doped DLC cathodes....

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Bibliographic Details
Published in:Thin solid films 2009, Vol.517 (5), p.1821-1824
Main Authors: Wang, Sea-Fue, Pu, Jui-Chen, Sung, James C.
Format: Article
Language:English
Subjects:
Cathode materials
Cathodic arc physical vapor deposition
Diamond like carbon
Electroluminescence
Electroluminescent devices
Luminosity
Phosphor
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Summary:Diamond like carbon (DLC) thin films were used as the cathode layers of inorganic alternating current driven thick dielectric electroluminescent devices. The results indicated that electroluminescent (EL) devices with DLC cathode has superior brightness over the EL with Al or Cr-doped DLC cathodes. Cr-doping in DLC thin film can increase the electrical conductivity, but degrades the EL properties. Also, the EL device with DLC cathode possesses the lowest decay rate among various cathodes, because of the high thermal conductivity and the inert nature of DLC film.
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2008.10.002