Pure and Saturated Red Electroluminescent Polyfluorenes with Dopant/Host System and PLED Efficiency/Color Purity Trade-Offs

	Pure and Saturated Red Electroluminescent Polyfluorenes with Dopant/Host System and PLED Efficiency/Color Purity Trade-Offs
	Chen L ; Zhang BH ; Cheng YX ; Xie ZY ; Wang LX ; Jing XB ; Wang FS
刊名	advanced functional materials
	2010
卷号	20 期号:18 页码:3143-3153
关键词	LIGHT-EMITTING-DIODES SINGLE-POLYMER SYSTEM WHITE ELECTROLUMINESCENCE CONJUGATED POLYMERS DEGRADATION MECHANISM COPOLYMERS FLUORENE BLUE EMISSION DERIVATIVES
ISSN号	1616-301x
通讯作者	chen l
中文摘要	three kinds of red electroluminescent (el) polymers based on polyfluorene as blue host and 2,1,3-benzothiadiazole derivatives with different emission wavelengths as red dopant units on the side chain are designed and synthesized. the influence of the photoluminescence (pl) efficiencies and emission wavelengths of red dopants on the el efficiencies and color purities of the resulting polyfluorene copolymers of dopant/host system is investigated by adjusting the electron donating ability of the donor units in d-pi-a-d typed 2,1,3-benzothiadiazole derivatives. the devices of these red-emitting polymers realize remarkable el efficiency/color purity trade-offs. the single-layer devices with the configuration of ito/pedot:pss/polymer/ca/al show pure red emission at 624 nm with a luminous efficiency of 3.83 cd a(-1) and cie of (0.63, 0.35) for pfr1, saturated red emission at 636 nm with a luminous efficiency of 2.29 cd a(-1) and cie of (0.64, 0.33) for pfr2, respectively. by introduction of an additional electron injection layer pf-ep(ethanol soluble phosphonate-functionalized polyfluorene), high performance pure and saturated red emission two-layer devices (ito/pedot:pss/polymer/pf-ep/lif/al) were achieved with maximum luminous efficiencies of 5.50 cd a(-1) and cie of (0.62, 0.35) for pfr1, 3.10 cd a(-1) and cie of (0.63, 0.33) for pfr2, respectively, which are the best results for pure and saturated fluorescent red el polymers reported so far.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000282910000019
公开日期	2012-04-25
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/43368]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Chen L,Zhang BH,Cheng YX,et al. Pure and Saturated Red Electroluminescent Polyfluorenes with Dopant/Host System and PLED Efficiency/Color Purity Trade-Offs[J]. advanced functional materials,2010,20(18):3143-3153.
APA	Chen L.,Zhang BH.,Cheng YX.,Xie ZY.,Wang LX.,...&Wang FS.(2010).Pure and Saturated Red Electroluminescent Polyfluorenes with Dopant/Host System and PLED Efficiency/Color Purity Trade-Offs.advanced functional materials,20(18),3143-3153.
MLA	Chen L,et al."Pure and Saturated Red Electroluminescent Polyfluorenes with Dopant/Host System and PLED Efficiency/Color Purity Trade-Offs".advanced functional materials 20.18(2010):3143-3153.