Characterization of white electroluminescent devices fabricated using conjugated polymer blends

被引：20

作者：

Hwang, DH ^{[1
]}

Park, MJ

Kim, SK

Lee, NH

Lee, CH

Kim, YB

Shim, HK

机构：

[1] Kumoh Natl Inst Technol, Dept Appl Chem, Kumi 730701, South Korea

[2] Inha Univ, Dept Phys, Inchon 402751, South Korea

[3] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul 151744, South Korea

[4] Konkuk Univ, Dept Chem, Liquid Crystal Res Ctr, Seoul 143701, South Korea

[5] Korea Adv Inst Sci & Technol, Ctr Adv Funct Polymers, Dept Chem, Taejon 305701, South Korea

[6] Korea Adv Inst Sci & Technol, Ctr Adv Funct Polymers, Sch Mol Sci BK21, Taejon 305701, South Korea

来源：

JOURNAL OF MATERIALS RESEARCH | 2004年 / 19卷 / 07期

关键词：

D O I：

10.1557/JMR.2004.0261

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the characterization of white light emitting devices fabricated using conjugated polymer blends. Blue emissive poly [9,9-bis(4' -n-octyloxyphenyl)fluorene-2, 7-diyl-co-10-(2'-ethylhexyl)phenothiazine-3,7-diyl] [poly(BOPF-co-PTZ)] and red emissive poly(2-(2'-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene) (MEH-PPV) were used in the blends. The inefficient energy transfer between these blue and red light emitting polymers (previously deduced from the photoluminscence (PL) spectra of the blend films) enables the production of white light emission through control of the blend ratio. The PL and electroluminescence (EL) emission spectra of the blend systems were found to vary with the blend ratio. The EL devices were fabricated in the indium tin oxide [poly(3,4-ethylenedioxy-thiophene)-poly(styrenesulfonate)] (ITO/PEDOT-PSS)blend/LiF/Al configuration, and white light emission was obtained for one of the tested blend ratios.

引用

页码：2081 / 2086

页数：6

共 29 条

[1]

Becker H, 2000, ADV MATER, V12, P42, DOI 10.1002/(SICI)1521-4095(200001)12:1<42::AID-ADMA42>3.0.CO

[2]

2-F

[3] New insights into the microstructure of GILCH-polymerized PPVs [J].

Becker, H ;

Spreitzer, H ;

Ibrom, K ;

Kreuder, W .

MACROMOLECULES, 1999, 32 (15) :4925-4932

[4] CHEMICAL TUNING OF ELECTROLUMINESCENT COPOLYMERS TO IMPROVE EMISSION EFFICIENCIES AND ALLOW PATTERNING [J].

BURN, PL ;

HOLMES, AB ;

KRAFT, A ;

BRADLEY, DDC ;

BROWN, AR ;

FRIEND, RH ;

GYMER, RW .

NATURE, 1992, 356 (6364) :47-49

[5] LIGHT-EMITTING-DIODES BASED ON CONJUGATED POLYMERS [J].

BURROUGHES, JH ;

BRADLEY, DDC ;

BROWN, AR ;

MARKS, RN ;

MACKAY, K ;

FRIEND, RH ;

BURN, PL ;

HOLMES, AB .

NATURE, 1990, 347 (6293) :539-541

[6] Synthesis and color tuning of new fluorene-based copolymers [J].

Cho, NS ;

Hwang, DH ;

Lee, JK ;

Jung, BJ ;

Shim, HK .

MACROMOLECULES, 2002, 35 (04) :1224-1228

[7] White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer [J].

Deshpande, RS ;

Bulovic, V ;

Forrest, SR .

APPLIED PHYSICS LETTERS, 1999, 75 (07) :888-890

[8] COLOR VARIATION WITH ELECTROLUMINESCENT ORGANIC SEMICONDUCTORS IN MULTIMODE RESONANT CAVITIES [J].

DODABALAPUR, A ;

ROTHBERG, LJ ;

MILLER, TM .

APPLIED PHYSICS LETTERS, 1994, 65 (18) :2308-2310

[9] FLEXIBLE LIGHT-EMITTING-DIODES MADE FROM SOLUBLE CONDUCTING POLYMERS [J].

GUSTAFSSON, G ;

CAO, Y ;

TREACY, GM ;

KLAVETTER, F ;

COLANERI, N ;

HEEGER, AJ .

NATURE, 1992, 357 (6378) :477-479

[10] EFFICIENT PHOTODIODES FROM INTERPENETRATING POLYMER NETWORKS [J].

HALLS, JJM ;

WALSH, CA ;

GREENHAM, NC ;

MARSEGLIA, EA ;

FRIEND, RH ;

MORATTI, SC ;

HOLMES, AB .

NATURE, 1995, 376 (6540) :498-500

← 1 2 3 →