Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1999.11d
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- Pages.962-964
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- 1999
Emitting Properties of Poly(3-hexylthiophene) deposited by LB method
LB법에 의한 제막된 poly(3-hexylthiophene)의 발광특성
- Seo, Bu-Wan (Dept. of Electrical Eng. Chonnam Univ.) ;
- Kim, Ju-Seung (Dept. of Electrical Eng. Chonnam Univ.) ;
- Gu, Hal-Bon (Dept. of Electrical Eng. Chonnam Univ.) ;
- Lee, Kyung-Sup (Dept. of Electrical & Electronic Eng. Dongshin Univ.) ;
- Park, Bok-Gi (Dept. of Electrical Eng. Howon Univ.) ;
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Park, Gye-Chun
(Dept. of Electrical Eng. Mokpo Univ.)
- 서부완 (전남대 전기공학과) ;
- 김주승 (전남대 전기공학과) ;
- 구할본 (전남대 전기공학과) ;
- 이경섭 (동신대 전기공학과) ;
- 박복기 (호원대 전기공학과) ;
-
박계춘
(목포대 전기공학과)
- Published : 1999.11.20
Abstract
We studied emitting properties of devices fabricated using the spin-coating and Langmuir-Blodgett[LB] technique. The LB technique has the advantage of precise control of the thickness better than spin-coating method. Poly(3-hexylthiophene)[P3HT] LB films used as the emitting layer in light-emitting devices. LB monolayers were deposited 27 layers onto the indium-tin-oxide[ITO] as Y-type films by the vertical dipping method. The thickness is about 80nm. Absorption spectrum of LB films presented that P3HT is regiorandom conformation. Also, current-voltage-luminance characteristics and electroluminescence spectra of light-emitting devices fabricated by LB method is studied. In current-voltage-luminescence characteristics, turn-on voltage of P3HT LB film LEDs is higher than that of spin-coating LEDs. But electroluminescence spectrum is similar to the spin-coating LEDs. The orange-red light was clearly visible in a darkened room.
Keywords