유기발광디바이스용 청색발광재료의 합성

정평진; 조민주; Pyung Jin Chung; Min Ju Cho

Journal of the Korean Industrial and Engineering Chemistry, Vol.16, No.6, 755-759, December, 2005

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유기발광디바이스용 청색발광재료의 합성

Synthesis of Blue Emitting Materials for Organic Light Emitting Device

정평진^†, 조민주

단국대학교 신소재공학과

Pyung Jin Chung^†, and Min Ju Cho

Department of Materials Science and Engineering, Dankook University, Cheonan 330-714, Korea

E-mail:

초록

본 연구는 유기EL의 기초연구로서, 특히 발광재료인 DPAVBi, AVBi 및 DPVBi를 Witting반응과 Wittig-Horner반응으로 합성했다. 이 반응은 Phosphorous ylide와 4-(디페닐아미노)벤즈알데히드, 9-안트라알데히드 및 벤조페논으로 행해졌다. 반응생성물의 구조적 특성은 FT-IR, 'H-NMR 스펙트로스코피로서 분석되었으며, 열적 안정성, 반응성 및 PL특성은 융점, 수득율 및 발광스펙트럼으로 각각 분석되었다. 순수한 DPAVBi, AVBi 및 DPVBi의 광전발광스펙트럼은 445 nm, 484 nm 및 450 nm 부근에서 각각 관찰되었다. 본 연구에 있어서 합성된 DPAVBi, AVBi 및 DPVBi는 알데히드, 케톤의 카르보닐기의 α-위치의 안정성에 따라서 다른 반응특성을 나타냈다.

This study was based on organic electroluminescence display. Especially, DPAVBi, AVBi and DPVBi for the emitting materials were synthesized by Wittig, Wittig-Horner reaction. This reaction was conducted between phosphorous ylide and 4-(diphenylamino)benzaldehyde, 9-anthraldehyde and benzophenone. The structural property of reaction products were analyzed by FT-IR, 1H-NMR spectroscopy and thermal stability, reactivity and PL property were analyzed by melting poiint, yield and emission spectrum, respectvely. The photoluminescence spectra of a pure DPAVBi, AVBi and DPVBi were observed at approximately 445nm, 484nm and 450nm, respectively. In this study, it was known that DPAVBi, AVBi, DPVBi had a different reaction properties according to stability of α-position carbonyl group of the aldehyde, ketone.

Keywords:DPAVBi;AVBi;DPVBi;EM;OLED

[References]

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[1] Tang CW, VanSlyke SA, Appl. Phys. Lett., 51, 913 (1987)

[2] Helfrich W, Schneider WG, Phys. Rev. Lett., 14, 229 (1965)

[3] Adachi C, Tokito S, Tsutsui T, Saito S, Jpn. J. Appl. Phys., 27, L713 (1988)

[4] Burroughes JH, Bradley DDC, Brown AR, Marks RN, Mackay K, Friend RH, Bumm PL, Holmes AB, Nature, 374, 539 (1990)

[5] Kido J, Hayase H, Hongawa K, Nagai K, Okuyama K, Appl. Phys. Lett., 65, 212 (1994)

[6] Kim DU, Tsutsui T, J. Appl. Phys., 80, 4785 (1996)

[7] Yang Z, Sokolik I, Karatz FE, Macromolecules, 26, 1188 (1993)

[8] Ding XB, Synth. Met., 142, 267 (2004)

[9] Tang CW, VanSlyke SA, Chen CH, J. Appl. Phys., 65, 3610 (1989)

[10] Saito S, Tsutsui T, Era M, Takada N, Adachi C, Hamada Y, Wakimoto T, Proc. SPIE, 1910, 212 (1993)

[11] Tokito S, Tsutsui T, Taga Y, J. Appl. Phys., 86, 2407 (1999)

[12] Hamada Y, Kanno H, Tsujioka T, Takahashi H, Usuki T, Appl. Phys. Lett., 75, 1682 (1999)

[13] Adachi C, Tsutsui T, Saito S, Appl. Phys. Lett., 55, 1489 (1989)

[14] Kido J, Ohtaki C, Hongawa K, Okuyama K, Nagai K, J. Appl. Phys., 32, L917 (1993)

[15] Carrard M, Goncalves-Conto S, Si-Ahmed L, Ades D, Siove A, Thin Solid Films, 352(1-2), 189 (1999)

[16] Yoshino K, Love P, Onoda M, Sugimoto R, J. Appl. Phys., 27, L2388 (1998)

[17] Hayashi S, Etoh H, Saito S, J. Appl. Phys., 25, L773 (1986)