White organic light-emitting diodes with fine chromaticity tuning via ultrathin layer position shifting

被引：70

作者：

Choukri, Hakim ^{[1
]}

Fischer, Alexis

Forget, Sebastien

Chenais, Sebastien

Castex, Marie-Claude

Ades, Dominique

Siove, Alain

Geffroy, Bernard

机构：

[1] Univ Paris 13, CNRS, Lab Phys Lasers, F-93430 Villetaneuse, France

[2] Univ Paris 13, CNRS, Lab Biomat & Polymeres Special, F-93430 Villetaneuse, France

[3] CEA Saclay, Lab Composants Hybrides, LITEN, DTNM, F-91191 Gif Sur Yvette, France

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 18期

关键词：

D O I：

10.1063/1.2382730

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nondoped white organic light-emitting diodes using an ultrathin yellow-emitting layer of rubrene (5,6,11,12-tetraphenylnaphtacene) inserted on either side of the interface between a hole-transporting 4,4'-bis[N-(1-naphtyl)-N-phenylamino]biphenyl (alpha-NPB) layer and a blue-emitting 4,4(')-bis(2,2'-diphenylvinyl)-1,1'-biphenyl (DPVBi) layer are described. Both the thickness and the position of the rubrene layer allow fine chromaticity tuning from deep blue to pure yellow via bright white with CIE coordinates (x=0.33, y=0.32), an eta(ext) of 1.9%, and a color rendering index of 70. Such a structure also provides an accurate sensing tool to measure the exciton diffusion length in both DPVBi and NPB (8.7 and 4.9 nm, respectively). (c) 2006 American Institute of Physics.

引用

页数：3

共 20 条

[1] Excitonic singlet-triplet ratio in a semiconducting organic thin film [J].

Baldo, MA ;

O'Brien, DF ;

Thompson, ME ;

Forrest, SR .

PHYSICAL REVIEW B, 1999, 60 (20) :14422-14428

[2] Bright, saturated, red-to-yellow organic light-emitting devices based on polarization-induced spectral shifts [J].

Bulovic, V ;

Shoustikov, A ;

Baldo, MA ;

Bose, E ;

Kozlov, VG ;

Thompson, ME ;

Forrest, SR .

CHEMICAL PHYSICS LETTERS, 1998, 287 (3-4) :455-460

[3] Bright white small molecular organic light-emitting devices based on a red-emitting guest-host layer and blue-emitting 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl [J].

Cheon, KO ;

Shinar, J .

APPLIED PHYSICS LETTERS, 2002, 81 (09) :1738-1740

[4] White organic light-emitting devices for solid-state lighting [J].

D'Andrade, BW ;

Forrest, SR .

ADVANCED MATERIALS, 2004, 16 (18) :1585-1595

[5] Highly efficient multilayer organic pure blue light emitting diodes with substituted carbazoles compounds in the emitting layer [J].

Fischer, A ;

Chénais, S ;

Forget, S ;

Castex, MC ;

Adès, D ;

Siove, A ;

Denis, C ;

Maisse, P ;

Geffroy, B .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (05) :917-922

[6] Characterization of blue-light-emitting organic electroluminescent devices [J].

Haskal, EI .

SYNTHETIC METALS, 1997, 91 (1-3) :187-190

[7] Energy level alignment at interfaces of organic semiconductor heterostructures [J].

Hill, IG ;

Kahn, A .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (10) :5583-5586

[8] MULTILAYER WHITE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICE [J].

KIDO, J ;

KIMURA, M ;

NAGAI, K .

SCIENCE, 1995, 267 (5202) :1332-1334

[9] Combinatorial fabrication and studies of bright white organic light-emitting devices based on emission from rubrene-doped 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl [J].

Li, G ;

Shinar, J .

APPLIED PHYSICS LETTERS, 2003, 83 (26) :5359-5361

[10] Enhanced luminescent and electrical properties of hydrogen-plasma ZnO nanorods grown on wafer-scale flexible substrates [J].

Lin, CC ;

Chen, HP ;

Liao, HC ;

Chen, SY .

APPLIED PHYSICS LETTERS, 2005, 86 (18) :1-3

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