Effect of the bilayer cathode on white and ultraviolet emission in polysilane based light emitting diodes

Author

Singh, Ranbir ; Sharma, Abhishek ; Deepak ; Katiyar, Monica

Author_Institution

Indian Inst. of Technol. Kanpur, Kanpur

fYear

2007

fDate

16-20 Dec. 2007

Firstpage

590

Lastpage

592

Abstract

Single layer polysilane based organic light- emitting diodes (OLEDs) are fabricated by inserting a thin layer of LiF between the emissive poly(n-butylphenylsilane) (PS-4) layer and Al cathode. It was found that the current in the devices is significantly enhanced as compared to devices with Ca/Al electrode. The enhancement may be caused by the increased electron injection due to the tunneling through LiF layer. Additionally, devices with LiF/Al cathode show reduced white emission when compared to devices having Ca/Al cathode.

Keywords

cathodes; organic light emitting diodes; bilayer cathode; emissive poly(n-butylphenylsilane); organic light-emitting diodes; polysilane based light emitting diodes; ultraviolet emission; Cathodes; Flat panel displays; Glass; Indium tin oxide; Inorganic materials; Light emitting diodes; Organic light emitting diodes; Photoluminescence; Semiconductor materials; Substrates; Effect of Cathode; Injection; Polysilanes;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on

Conference_Location

Mumbai

Print_ISBN

978-1-4244-1728-5

Electronic_ISBN

978-1-4244-1728-5

Type

conf

DOI

10.1109/IWPSD.2007.4472586

Filename

4472586