Effects of White Organic Light-Emitting Devices Using Color Conversion Films on Electroluminescence Spectra

被引：0

作者：

Hou Qing-chuan ^{[1
]}

Wu Xiao-ming ^{[1
]}

Hua Yu-lin ^{[1
]}

Qi Qing-jin ^{[1
]}

Li Lan ^{[1
]}

Yin Shou-gen ^{[1
]}

机构：

[1] Tianjin Univ Technol, Tianjin Key Lab Photoelect Display Mat & Devices, Sch Mat Sci & Engn,Minist Educ, Key Lab Photoelect Display Mat & Devices, Tianjin 300384, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2010年 / 30卷 / 06期

关键词：

Organic light-emitting device; Organic/inorganic color conversion film; White light; EFFICIENCY; EMISSION;

D O I：

10.3964/j.issn.1000-0593(2010)06-1460-04

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The authors report a novel white organic light-emitting device (WOLED), which uses a strategy of exciting organic/inorganic color conversion film with a blue organic light-emitting diode (OLED). The luminescent layer of the blue OLED was prepared by use of CBP host blended with a blue highly fluorescent dye N-BDAVBi. The organic/inorganic color conversion film was prepared by dispersing a mixture of red pigment VQ-D25 and YAG: Ce3+ phosphor in PMMA. The authors have achieved a novel WOLED with the high color stability by optimizing the thickness and fluorescent pigment concentration of the color conversion film. When the driving voltage varied between 6 and 14 V, the color coordinates (CIE) varied slightly from (0.354, 0.304) to (0.357, 0.312) and the maximum current efficiency is about 5.8 cd center dot A(-1) (4.35 mA center dot cm(-2)), the maximum brightness is 16 800 cd center dot m(-2) at the operating voltage of 14 V.

引用

页码：1460 / 1463

页数：4