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Paper Abstract and Keywords
Presentation 2010-01-20 14:40
EL properties of Organic Light-Emitting Diodes using isomers of naphthyl-substituted diamine derivative (NPD) as a hole-transport layer
Ayanobu Ikeno, Tatsuo Mori (Nagoya Uni.)
Abstract (in Japanese) (See Japanese page) 
(in English) Diamine derivatives $\alpha$-NPD is widely used as hole transport materials in organic light-emitting diode(OLED). But it is known that $\alpha$-NPD is easily polycrystallized after vacuum deposition. In this study, we investigate the stability of film structure of $\beta$-NPD which is a different isomer and device characteristics of the device using $\alpha$-NPD. It was found that the film structure of $\beta$-NPD is very stable and that the HOMO and LUMO levels of $\alpha$-NPD is the same as that of $\beta$-NPD. The device using $\beta$-NPD as a hole transport layer has almost the same initial characterization as the device using $\alpha$-NPD. The lifetime of the former is longer than that of the latter.
Keyword (in Japanese) (See Japanese page) 
(in English) organic light-emitting diodes / hole transport layer / $\alpha$-NPD / $\beta$-NPD / polycrystallization / / /  
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Conference Information
Committee OME  
Conference Date 2010-01-20 - 2010-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Meijo Univ. 
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Paper Information
Registration To OME 
Conference Code 2010-01-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) EL properties of Organic Light-Emitting Diodes using isomers of naphthyl-substituted diamine derivative (NPD) as a hole-transport layer 
Sub Title (in English)  
Keyword(1) organic light-emitting diodes  
Keyword(2) hole transport layer  
Keyword(3) $\alpha$-NPD  
Keyword(4) $\beta$-NPD  
Keyword(5) polycrystallization  
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1st Author's Name Ayanobu Ikeno  
1st Author's Affiliation Nagoya University (Nagoya Uni.)
2nd Author's Name Tatsuo Mori  
2nd Author's Affiliation Nagoya University (Nagoya Uni.)
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Speaker Author-1 
Date Time 2010-01-20 14:40:00 
Presentation Time 25 minutes 
Registration for OME 
Paper #  
Volume (vol) vol.109 
Number (no) no.365 
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