Site Isolation in Phosphorescent Bichromophoric Block Copolymers Designed for White Electroluminescence

被引:82
作者
Poulsen, Daniel A. [1 ,2 ]
Kim, Bumjoon J. [1 ,2 ,3 ]
Ma, Biwu [1 ,2 ]
Zonte, C. Sebastian [1 ,2 ]
Frechet, Jean M. J. [1 ,2 ]
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA
[3] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Taejon 305701, South Korea
关键词
LIGHT-EMITTING-DIODES; SINGLE-POLYMER SYSTEM; IRIDIUM COMPLEX; ENERGY-TRANSFER; EFFICIENT; EMISSION; DEVICES; BLUE; CHROMOPHORES; POLYFLUORENE;
D O I
10.1002/adma.200901453
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Organization of phosphorescent domains in seld-assembled block copolymers is demonstrated to yield dual emission for white electroluminescence. Our block-copolymer approach minimizes energy transfer between two colored species by site isolation through morphology control, allowing higher loading concentration of red emitters with improved device performance.
引用
收藏
页码:77 / +
页数:7
相关论文
共 44 条
  • [1] Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials
    Adachi, C
    Kwong, RC
    Djurovich, P
    Adamovich, V
    Baldo, MA
    Thompson, ME
    Forrest, SR
    [J]. APPLIED PHYSICS LETTERS, 2001, 79 (13) : 2082 - 2084
  • [2] [Anonymous], 1991, MODERN MOL PHOTOCHEM
  • [3] Direct vapor jet printing of three color segment organic light emitting devices for white light illumination
    Arnold, Michael S.
    McGraw, Gregory J.
    Forrest, Stephen R.
    Lunt, Richard R.
    [J]. APPLIED PHYSICS LETTERS, 2008, 92 (05)
  • [4] Highly efficient phosphorescent emission from organic electroluminescent devices
    Baldo, MA
    O'Brien, DF
    You, Y
    Shoustikov, A
    Sibley, S
    Thompson, ME
    Forrest, SR
    [J]. NATURE, 1998, 395 (6698) : 151 - 154
  • [5] Defect-free nanoporous thin films from ABC triblock copolymers
    Bang, Joona
    Kim, Seung Hyun
    Drockenmuller, Eric
    Misner, Matthew J.
    Russell, Thomas P.
    Hawker, Craig J.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (23) : 7622 - 7629
  • [6] BLOCK COPOLYMER THERMODYNAMICS - THEORY AND EXPERIMENT
    BATES, FS
    FREDRICKSON, GH
    [J]. ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 (01) : 525 - 557
  • [7] Block copolymers - Designer soft materials
    Bates, FS
    Fredrickson, GH
    [J]. PHYSICS TODAY, 1999, 52 (02) : 32 - 38
  • [8] LIGHT-EMITTING-DIODES WITH VARIABLE COLORS FROM POLYMER BLENDS
    BERGGREN, M
    INGANAS, O
    GUSTAFSSON, G
    RASMUSSON, J
    ANDERSSON, MR
    HJERTBERG, T
    WENNERSTROM, O
    [J]. NATURE, 1994, 372 (6505) : 444 - 446
  • [9] Block copolymer nanocomposites: Perspectives for tailored functional materials
    Bockstaller, MR
    Mickiewicz, RA
    Thomas, EL
    [J]. ADVANCED MATERIALS, 2005, 17 (11) : 1331 - 1349
  • [10] Optical properties of polymer-based photonic nanocomposite materials
    Bockstaller, MR
    Thomas, EL
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (37) : 10017 - 10024