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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 7
BKCSDE 27(7)
July 20, 2006

Title	New Conjugated Polymer Based on Dihydroindoloindole for LEDs
Author	Youngeup Jin, Kwanghyun Kim, Suhee Song, Jinwoo Kim, Jaehong Kim, Sung Heum Park, Kwanghee Lee, Hongsuk Suh*
Keywords	Electroluminescence, Polymer, PLED, Light-emitting diodes (LEDs)
Abstract	New electroluminescence polymer, poly(5,10-dihexyl-5,10-dihydroindolo[3,2-b]indole-2,7-diyl) (PININO) was synthesized by Yamamoto conditions with Ni(0) catalyst. The full characterization of structures and properties as well as the performances of the electroluminescence devices of the new polymer are presented. The resulting polymer, which exhibits good solubility in common organic solvents, was used as the electroluminescence layer for the light-emitting diodes (LEDs) (ITO/PEDOT/polymer/Al). PININO shows turn-on voltage of 2.5 V, and electroluminescence (EL) with maximum peak at 490 nm, maximum brightness of 40 cd/m² at 8 V, and efficiency of 0.002 cd/A at 350 mA/cm².
Page	1043 - 1047
Full Text	PDF

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