Investigation of electroluminescence from Au/poly-4-dicyanomethylene-4H-cyclopenta[2,1-b:3,4-b′]dithiophene/porous Si/Si/Al light emitting diodes
作者:
Y. Dong,
S. C. Bayliss,
M. Parkinson,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 11
页码: 1344-1346
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.120989
出版商: AIP
数据来源: AIP
摘要:
We report simple porous silicon-based devices producing stable electroluminescence (EL) by the deposition of a poly-4-dicyanomethylene-4H-cyclopenta[2,1-b:3,4-b′]dithiophene monolayer (PCDM) into the nanostructure. The structure of these devices is Au/PCDM/porous silicon/Si/Al. The EL emission is bright, visible by the naked eye under normal daylight, and broad in wavelength, covering the whole visible range with a peak at 650 nm. The emission area of the devices is1 cm2.The EL starting voltage is in the range of 14–30 V and the current is around 300 mA. The time stability was good for all the devices tested. After exposure to the air for more than three months, the devices show nearly the same emission intensity without increase of external power supplied. ©1998 American Institute of Physics.
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