본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

ETRI journal v.27 no.2, 2005년, pp.181 - 187  

Solution-Processible Blue-Light-Emitting Polymers Based on Alkoxy-Substituted Poly(spirobifluorene)

Lee, Jeong-Ik    (Basic Research Laboratory, ETRI   ); Chu, Hye-Yong    (Basic Research Laboratory, ETRI   ); Oh, Ji-Young    (Basic Research Laboratory, ETRI   ); Do, Lee-Mi    (Basic Research Laboratory, ETRI   ); Lee, Hyo-Young    (Future Technology Research Division, ETRI   ); Zyung, Tae-Hyoung    (Future Technology Research Division, ETRI   ); Lee, Jae-Min    (Department of Chemistry,KAIST   ); Shim, Hong-Ku    (Department of Chemistry,KAIST  );
  • 초록

    Alkoxy-substituted poly(spirobifluorene)s and their copolymers with a triphenylamine derivative have been synthesized by Ni(0)-mediated polymerization. The polymers were well soluble in common organic solvents. Pure blue-light emissions without the long wavelength emission of poly(fluorene)s have been observed in the fluorescence spectra of polymer thin films. The light emitting diodes with a device configuration of ITO/PEDT:PSS(30 nm)/polymer(60 nm)/LiF(1 nm)/Al(100 nm) have been fabricated. The electroluminescence spectra showed the blue emissions without the long wavelength emission as observed in the fluorescence spectra. The relatively poor electroluminescence quantum yield of the homopolymer (0.017% @ 20 $mA/cm^{2}$ ) with color coordinates of (0.16, 0.07) has been improved by the introduction of triphenylamine moiety, and the copolymer with derivative exhibited an electroluminescence quantum yield of 0.15 % at 20 $mA/cm^{2}$ with color coordinates of (0.16, 0.08). Moreover, the introduction of polar side chains to the spirobifluorene moiety enhanced the device performance and led to the quantum yields of 0.6 to 0.7 % at 20 $mA/cm^{2}$ , although there was some expense of color purities.


  • 주제어

    PLED .   poly(fluorine) .   spirobifluorene .   display.  

  • 참고문헌 (26)

    1. Purification of Laboratory Chemicals , Perrin, D.D.;Armarego, W.L.F. , / v.,pp.,
    2. High Efficiency Low Operating Voltage Polymer Light-Emitting Diodes with Aluminum Cathode , Deng, X.Y.;Lau, W.M.;Wong, K.Y.;Low, K.H.;Chow, H.F.;Cao, Y. , Appl. Phys. Lett. / v.84,pp.3522-3524,
    3. Light Emitting Polymers , Lee, J.I.(et al.) , / v.,pp.,
    4. Efficient Blue-Green and White Light Emitting Electrochemical Cells Based on Poly(9,9-(bis(3,6-dioxaheptyl)-fluorene-2,7-diyl) , Yang, Y.;Pei, Q. , J. Appl. Phys. / v.81,pp.3294-3298,
    5. Sainova, D.;Miteva, T.;Nothofer, H.G.;Scherf, U.;Glowacki, I.;Ulanski, J.;Fujikawa, H.;Neher, D. , Appl. Phys. Lett. / v.76,pp.1810,
    6. Triphenylamine-Substituted Polyfluorene - A Stable Blue-Emitter with Improved Charge Injection for Light-Emitting Diodes , Ego, C.;Grimsdale, A.C.;Uckert, F.;Yu, G.;Srdanov, G.;Mullen, K. , Adv. Mater. / v.14,pp.809-811,
    7. Improving the Performance of Polyfluorene-Based Organic Light-Emitting Diodes via End-Capping , Miteva, T.;Meisel, A.;Knoll, W.;Nothofer, H.G.;Scherf, U.;Muller, D.C.;Meerholz, K.;Yasuda, A.;Neher, D. , Adv. Mater. / v.13,pp.565-570,
    8. Conjugated Polymers Having Spiro Centers and Their Use as Electroluminescence Materials , Kreuder, W.;Lupo, D.;Salbeck, J.;Schenk, H.;Stehlin, T. , / v.,pp.,
    9. Spiro-Functionalized Polyfluorene Derivatives as Blue Light-Emitting Materials , Yu, W.L.;Pei, J.;Huang, W.;Heeger, A.J. , Adv. Mater. / v.12,pp.828-831,
    10. A Novel Spiro-Functionalized Polyfluorene Derivative with Solubilizing Side Chains , Vak, D.;Chun, C.;Lee, C.L.;Kim, J.J.;Kim, D.Y. , J. Mater. Chem. / v.14,pp.1342-1346,
    11. The Effect of Keto Defect Sites on the Emission Properties of Polyfluorene-Type Materials , List, E.J.W.;Guentner, R.;Scandiucci de Freitas, P.;Scherf, U. , Adv. Mater. / v.14,pp.374-378,
    12. Oxidative Stability and Its Effect on the Photoluminescence of Poly(Fluorene) Derivatives:End Group Effects , Lee, J.I.;Klaerner, G.;Miller, R.D. , Chem. Mater. / v.11,pp.1083-1088,
    13. Synthesis of Regio- and Stereoselective Alkoxy-Substituted Spirobifluorene Derivatives for Blue Light Emitting Materials , Lee, H.;Oh, J.;Chu, H.Y.;Lee, J.I.;Kim, S.H.;Yang, Y.S.;Kim, G.H.;Do, L.M.;Zyung, T.;Lee, J.;Park, Y. , Tetrahedron / v.99,pp.2773-2779,
    14. Efficient, Blue Light-Emitting Diodes Using Cross-Linked Layers of Polymeric Arylamine and Fluorene , Chen, J.P.;Klarner, G.;Lee, J.I.;Markiewicz, D.;Lee, V.Y.;Miller, R.D.;Scott, J.C. , Synth. Metals / v.107,pp.129-135,
    15. Thermally Stable Blue-Light-Emitting Copolymers of Poly(alkylfluorene) , Kreyenschmidt, M.;Klaerner, G.;Fuhrer, T.;Ashenhurst, J.;Karg, S.;Chen, W.D.;Lee, V.Y.;Scott, J.C.;Miller, R.D. , Macromolecules / v.31,pp.1099-1103,
    16. Efficient Photoluminescence and Electroluminescence from a Soluble Polyfluorene , Pei, Q.;Yang, Y. , J. Am. Chem. Soc. / v.118,pp.7416-7417,
    17. Blue Electroluminescent Diodes Utilizing Poly(alkylfluorene) , Ohmori, Y.;Uchida, M.;Muro, K.;Yoshino, K. , Jpn. J. Appl. Phys. / v.30,pp.L1941-L1943,
    18. Excimer and Aggregate Formations in Poly(fluorene)s , Lee, J.I.;Lee, V.Y.;Miller, R.D. , ETRI J. / v.24,pp.409-414,
    19. Novel Polymers Based on Poly(fluorene)s for LED Applications , Lee, J.I.;Klarner, G.;Chen, J.P.;Scott, J.C.;Miller, R.D. , Proc. SPIE Int. Opt. Soc. Eng. / v.3623,pp.2,
    20. Colorfast Blue-Light-Emitting Random Copolymers Derived from di-n-hexylfluorene and Anthracene , Klaerner, G.;Davey, M.H.;Chen, W.D.;Scott, J.C.;Miller, R.D. , Adv. Mater. / v.10,pp.993-997,
    21. Polyfluorenes with Dendron Side Chains as the Active Materials for Polymer Light-Emitting Devices , Pogantsch, A.;Wenzl, F.P.;List, E.J.W.;Leising, G.;Grimsdale, A.C.;Mullen, K. , Adv. Mater. / v.14,pp.1061-1064,
    22. Highly Bright Blue Organic Light-Emitting Devices Using Spirobifluorene Cored Conjugated Compounds , Wu, C.C.;Lin, Y.T.;Chiang, H.H.;Cho, T.Y.;Chen, C.W.;Wong, K.T.;Lian, Y.L.;Lee, G.H.;Peng, S.M. , Appl. Phys. Lett. / v.81,pp.577-579,
    23. Efficient Organic Blue Light Emitting Devices with Double Confinement on Terfluorenes with Ambipolar Carrier Transport Properties , Wu, C.C.;Lin, Y.T.;Wong, K.T.;Chen, R.T.;Chien, Y.Y. , Adv. Mater. / v.16,pp.61-65,
    24. Electroluminescent Conjugated Polymers-Seeing Polymers in a New Light , Kraft, A.;Grimsdale, A.C.;Holmes, A.B. , Angew. Chemie. / v.37,pp.402-428,
    25. Electroluminescence in Conjugated Polymers , Friend, R.H.;Gymer, R.W.;Holmes, A.B.;Burroughes, J.H.;Marks, R.N.;Taliani, C.;Bradley, D.D.C.;Dos Santos, D.A.;Bredas, J.L.;Logdlund, M.;Salaneck, W.R. , Nature / v.397,pp.121-128,
    26. Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices , Baldo, M.A.;O'Brien, D.F.;You, Y.;Shoustikov, A.;Sibley, S.;Thompson, M.E.;Forrest, S.R. , Nature / v.395,pp.151-154,

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
유료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기