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

H. Choukri | Zendy; A. Fischer | Zendy; Sébastien Forget | Zendy; S. Chénais | Zendy; M. C. Castex | Zendy; D. Adès | Zendy; Alain Siove | Zendy; Bernard Geffroy | Zendy

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

Author(s) -

H. Choukri,

A. Fischer,

Sébastien Forget,

S. Chénais,

M. C. Castex,

D. Adès,

Alain Siove,

Bernard Geffroy

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2382730

Subject(s) - rubrene , chromaticity , materials science , oled , color rendering index , optoelectronics , biphenyl , layer (electronics) , diode , white light , rendering (computer graphics) , optics , chemistry , physics , nanotechnology , organic chemistry , computer graphics (images) , computer science

Non-doped white organic light-emitting diodes using an ultrathinyellow-emitting layer of rubrene (5,6,11,12-tetraphenylnaphtacene) inserted oneither side of the interface between a hole-transporting NPB(4,4'-bis[N-(1-naphtyl)-N-phenylamino]biphenyl) layer and a blue-emitting DPVBi(4,4'-bis(2,2'-diphenylvinyl)-1,1'-biphenyl) layer are described. Both thethickness and the position of the rubrene layer allow fine chromaticity tuningfrom deep-blue to pure-yellow via bright-white with CIE coordinates (x= 0.33,y= 0.32), a external quantum efficiency of 1.9%, and a color rendering index of70. Such a structure also provides an accurate sensing tool to measure theexciton diffusion length in both DPVBi and NPB (8.7 and 4.9 nm respectively)

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