| 主体材料对磷光染料掺杂聚合物薄膜光谱性质的影响 |
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| 引用本文： | 马良.主体材料对磷光染料掺杂聚合物薄膜光谱性质的影响[J].闽江学院学报,2011,32(2):114-117. |
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| 作者姓名： | 马良 |
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| 作者单位： | 闽江学院化学与化学工程系,福建福州,350108 |
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| 摘 要： | 研究了以（PPQ）2Ir（acac）为客体,分别以PFO、PVK、PFB和PFG四种不同聚合物为主体掺杂体系的光谱性质.各种材料的紫外-可见吸收光谱和光致发光光谱的性质表明PVK和PFO与客体之间可以发生有效的能量转移.此外,与光致发光谱不同,发光器件电致发光光谱有较纯的红光发射,表明除了能量转移之外,电荷捕获也是实现器件红色发光的主要原因之一.
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| 关 键 词： | 主体 掺杂 磷光染料 有机电致发光器件 |
The effect of host material on the spectrum characteristics of phosphorescence polymer films |
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| MA Liang.The effect of host material on the spectrum characteristics of phosphorescence polymer films[J].Journal of Minjiang University,2011,32(2):114-117. |
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| Authors: | MA Liang |
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| Institution: | MA Liang (Department of Chemistry and Chemical Engineering,Minjiang University,Fuzhou,Fujian 350108,China) |
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| Abstract: | The spectrum characteristics of phosphorescence polymer films employing bis(2,4-diphenylquinolyl-N,C2′)iridium(acetylacetonate) (PPQ)2Ir(acac)] as the guest and PFO,PFG,PFB,PVK as the host respectively have been reported.The absorption spectrum of(PPQ)2Ir(acac) and the photoluminescence(PL) spectra of polymer films reveal the efficient Frster energy transfer from PFO and PVK to the guest via intersystem crossing.However,the electroluminescence(EL) spectra of devices are different with the PL of samples,which EL shows more pure red emitting than PL under the same concentrations of(PPQ)2Ir(acac).This result demonstrates the charge trapping in the guest also is one main electroluminescence mechanism besides energy transfer. |
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| Keywords: | host doping phosphorescence dye organic light emitting devices |
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