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White Organic Light-emitting Diodes with A Sr_2SiO_4:Eu^(3+) Color Conversion Layer

White Organic Light-emitting Diodes with A Sr_2SiO_4:Eu^(3+) Color Conversion Layer
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摘要 Abstract:Hybrid inorganic/organic white organic light emitting diodes(hybrid-WOLEDs)are fabricated by combi-ning the blue phosphorescent organic light emitting diodes(PHOLEDs)with red Sr2SiO4:Eu3+phosphor spin coatedas a color conversion layer(CCL)over the other side of glass substrate on the devices.The basic configuration of thePHOLEDs consists a host material,N,N'-dicarbazolyl-3,5-benzene(mCP)which doped with a blue phosphorescentiridium complexes iridium(Ⅲ)bis[(4,6-di-fluorophenyl)-pyridinato-N-C2'](FIrpic)to produce high efficient blueorganic light emitting diodes.The hybrid-WOLED shows maximum luminous efficiency of 22.1 cd/A,maximumpower efficiency of 11.26 lm/W,external quantum efficiency of 10.2%and CIE coordinates of(0.32,0.34).Mo-reover,the output spectra and CIE coordinates of the hybrid-WOLED have a small shift in different driving currentdensity,which demonstrate good color stability. Hybrid inorganic/organic white organic light emitting diodes （hybrid-WOLEDs） are fabricated by combi- ning the blue phosphorescent organic light emitting diodes （PHOLEDs） with red Sr2 SiO4： Eu3＋ phosphor spin coated as a color conversion layer （CCL） over the other side of glass substrate on the devices. The basic configuration of the PHOLEDs consists a host material, N, N＇-dicarbazolyl-3, 5-benzene （mCP） which doped with a blue phosphorescent iridium complexes iridium（ Ⅲ ）bis[ （4,6-di-fluorophenyl）-pyridinato-N- C2＇] （FIrpic） to produce high efficient blue organic light emitting diodes. The hybrid-WOLED shows maximum luminous efficiency of 22. 1 cd/ A, maximum power efficiency of 11.26 lm/W, external quantum efficiency of 10.2% and CIE coordinates of （0.32, 0.34）. Mo- reover, the output spectra and CIE coordinates of the bybrid-WOLED have a small shift in different driving current density, which demonstrate good color stability.
作者 Meiso Yokoyama
机构地区 Department of Electronic Engineering
出处 《发光学报》 EI CAS CSCD 北大核心 2013年第6期681-685,共5页 Chinese Journal of Luminescence
基金 Project supported by the National Science Council of the Republic of China(101-2221-E-214-016) the financial supporitng of ISU99-01-06 the MANALAB at ISU,Taiwan
关键词 white organic light emitting DIODES (WOLEDs) COLOR conversion layer(CCL) SR2 Si04 EU COLOR stability white organic light emitting diodes （WOLEDs） color conversion layer（CCL） Sr2 Si04： Eu color stability
分类号 TN383.1 [电子电信—物理电子学]
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参考文献8

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二级参考文献9

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发光学报
2013年 第6期

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