Photo/electroluminescent properties of novel bipolar oligomers

O. K. Kim; H. Y. Woo; K. S. Lee; J. K. Kim; D. Y. Kim; H. K. Shim; C. Y. Kim

doi:10.1016/S0379-6779(00)00662-7

Photo/electroluminescent properties of novel bipolar oligomers

O. K. Kim, H. Y. Woo, K. S. Lee, J. K. Kim, D. Y. Kim, H. K. Shim, C. Y. Kim

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Bipolar light-emitting (LE) oligomers consisting of three sequential segments centered by dithienothiophene (DTT) as π-center and attached by D/D or D/A pair: D-π-D (dye 1) or D-π-A (dye 2) where D and A refer to hole-transporting (HT) and electron-transporting (ET) units, respectively. Their redox properties are alike, suggesting the resemblance in bipolarity. Photoluminescence (PL) shows that the symmetric D/D system has a higher PL quantum efficiency relative to the D/A system. Electroluminescence (EL) from a single-layer device using a PVK blend displays a slightly higher light intensity with D/A system while EL quantum efficiency of D/D system doubles that of D/A system.

Original language	English
Pages (from-to)	1607-1608
Number of pages	2
Journal	Synthetic Metals
Volume	121
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)00662-7
Publication status	Published - 2001 Mar 15
Externally published	Yes

Keywords

Electroluminescence and organic semiconductors
Photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0379-6779(00)00662-7

Cite this

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title = "Photo/electroluminescent properties of novel bipolar oligomers",

abstract = "Bipolar light-emitting (LE) oligomers consisting of three sequential segments centered by dithienothiophene (DTT) as π-center and attached by D/D or D/A pair: D-π-D (dye 1) or D-π-A (dye 2) where D and A refer to hole-transporting (HT) and electron-transporting (ET) units, respectively. Their redox properties are alike, suggesting the resemblance in bipolarity. Photoluminescence (PL) shows that the symmetric D/D system has a higher PL quantum efficiency relative to the D/A system. Electroluminescence (EL) from a single-layer device using a PVK blend displays a slightly higher light intensity with D/A system while EL quantum efficiency of D/D system doubles that of D/A system.",

keywords = "Electroluminescence and organic semiconductors, Photoluminescence",

author = "Kim, {O. K.} and Woo, {H. Y.} and Lee, {K. S.} and Kim, {J. K.} and Kim, {D. Y.} and Shim, {H. K.} and Kim, {C. Y.}",

year = "2001",

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doi = "10.1016/S0379-6779(00)00662-7",

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number = "1-3",

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T1 - Photo/electroluminescent properties of novel bipolar oligomers

AU - Kim, O. K.

AU - Woo, H. Y.

AU - Lee, K. S.

AU - Kim, J. K.

AU - Kim, D. Y.

AU - Shim, H. K.

AU - Kim, C. Y.

PY - 2001/3/15

Y1 - 2001/3/15

N2 - Bipolar light-emitting (LE) oligomers consisting of three sequential segments centered by dithienothiophene (DTT) as π-center and attached by D/D or D/A pair: D-π-D (dye 1) or D-π-A (dye 2) where D and A refer to hole-transporting (HT) and electron-transporting (ET) units, respectively. Their redox properties are alike, suggesting the resemblance in bipolarity. Photoluminescence (PL) shows that the symmetric D/D system has a higher PL quantum efficiency relative to the D/A system. Electroluminescence (EL) from a single-layer device using a PVK blend displays a slightly higher light intensity with D/A system while EL quantum efficiency of D/D system doubles that of D/A system.

AB - Bipolar light-emitting (LE) oligomers consisting of three sequential segments centered by dithienothiophene (DTT) as π-center and attached by D/D or D/A pair: D-π-D (dye 1) or D-π-A (dye 2) where D and A refer to hole-transporting (HT) and electron-transporting (ET) units, respectively. Their redox properties are alike, suggesting the resemblance in bipolarity. Photoluminescence (PL) shows that the symmetric D/D system has a higher PL quantum efficiency relative to the D/A system. Electroluminescence (EL) from a single-layer device using a PVK blend displays a slightly higher light intensity with D/A system while EL quantum efficiency of D/D system doubles that of D/A system.

KW - Electroluminescence and organic semiconductors

KW - Photoluminescence

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DO - 10.1016/S0379-6779(00)00662-7

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SP - 1607

EP - 1608

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Photo/electroluminescent properties of novel bipolar oligomers

Abstract

Keywords

ASJC Scopus subject areas

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