Green light-emitting polyfluorenes with improved color purity incorporated with 4,7-diphenyl-2,1,3-benzothiadiazole moieties
文献类型：期刊论文
| 作者 | Liu J ; Bu LJ ; Dong JP ; Zhou QG ; Geng YH ; Ma DG ; Wang LX ; Jing XB ; Wang FS |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2007 |
| 卷号 | 17期号:27页码:2832-2838 |
| 关键词 | FLUORENE-BASED COPOLYMERS CONJUGATED COPOLYMERS ELECTRON-AFFINITY SINGLE-POLYMER DIODES EMISSION ELECTROLUMINESCENCE PERFORMANCE DERIVATIVES TRANSPORT |
| ISSN号 | 0959-9428 |
| 通讯作者 | wang lx |
| 中文摘要 | by incorporating 4,7-diphenyl- 2,1,3 benzothiadiazole instead of 2,1,3-benzothiadiazole into the backbone of polyfluorene, we developed a novel series of green light- emitting polymers with much improved color purity. compared with the state-of-the-art green light-emitting polymer, poly(fluorene-co-benzothiadiazole) (lambda max = 537 nm), the resulting polymers (lambda(max) = 521 nm) showed 10-20 nm blueshifted electroluminescence (el) spectra and greatly improved color purity because the insertion of two phenylene units between the 2,1,3-benzothiadiazole unit and the fluorene unit reduced the effective conjugation length in the vicinity of the 2,1,3-benzothiadiazole unit. as a result, the resulting polymers emitted pure green light with cie coordinates of (0.29, 0.63), which are very close to (0.26, 0.65) of standard green emission demanded by the national television system committee (ntsc). moreover, the insertion of the phenylene unit did not affect the photoluminescence (pl) and el efficiencies of the resulting polymers. pl quantum efficiency in solid films up to 0.82 was demonstrated. single-layer devices (ito/pedot/ polymer/ca/al) of these polymers exhibited a turn-on voltage of 4.2 v, luminous efficiency of 5.96 cd a(-1) and power efficiency of 2.21 lm w-1. high el efficiencies and good color purities made these polymers very promising for display applications. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247767900018 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14613]  |
| 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 | Liu J,Bu LJ,Dong JP,et al. Green light-emitting polyfluorenes with improved color purity incorporated with 4,7-diphenyl-2,1,3-benzothiadiazole moieties[J]. journal of materials chemistry,2007,17(27):2832-2838. |
| APA | Liu J.,Bu LJ.,Dong JP.,Zhou QG.,Geng YH.,...&Wang FS.(2007).Green light-emitting polyfluorenes with improved color purity incorporated with 4,7-diphenyl-2,1,3-benzothiadiazole moieties.journal of materials chemistry,17(27),2832-2838. |
| MLA | Liu J,et al."Green light-emitting polyfluorenes with improved color purity incorporated with 4,7-diphenyl-2,1,3-benzothiadiazole moieties".journal of materials chemistry 17.27(2007):2832-2838. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。