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polymer light emitting materials
相关语句
  聚合物发光材料
     Comparison Studies on the Stability of Small Molecule Light Emitting Materials and Polymer Light Emitting Materials
     有机小分子发光材料与聚合物发光材料在大气存放条件下的稳定性对比研究
短句来源
     Structure and Properties of Hyperbranched Conjugated Polymer Light Emitting Materials with Hole Transporting Moieties
     具有空穴传输基团的超支化聚合物发光材料的结构与光谱性质
短句来源
  相似匹配句对
     Light Stabilizers in Organic Polymer
     有机大分子中的光稳定剂
短句来源
     RESEARCH ON CONDUCTIVITY POLYMER LIGHT CELLS
     聚合物光电池的研究
短句来源
     Progress in Polymer Light Emitting Diodes
     聚合物发光二极管的研究进展
短句来源
     Conjugated Polymer Light-emitting Electrochemical Cells
     共轭聚合物发光电池
短句来源
     Study of Eletroluminescent Polymer and Light-emitting Devices
     电致发光聚合物及其发光器件研究
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In order to compare the stability between small molecule light emitting materials and polymer light emitting materials,tris (8 hydroxyquinoline)aluminum (Alq)(a typical small molecule light emitting material)and poly(9,9 dioctylfluorene)(PFO)(a brand new polymer light emitting material)were chosen as study cases in this work.Ultraviolet photoelectron spectroscopy(UPS),X ray photoelectron spectroscopy(XPS),atomic force...

In order to compare the stability between small molecule light emitting materials and polymer light emitting materials,tris (8 hydroxyquinoline)aluminum (Alq)(a typical small molecule light emitting material)and poly(9,9 dioctylfluorene)(PFO)(a brand new polymer light emitting material)were chosen as study cases in this work.Ultraviolet photoelectron spectroscopy(UPS),X ray photoelectron spectroscopy(XPS),atomic force microscopy(AFM), and photoluminescence spectrometer(PL) were used to investigate the ambient effect on the electronic structures,surface morphology,and PL properties of the Alq film and the PFO film. Alq films, with thicknesses of 6~8nm, were deposited by the thermal evaporation on to either Si substrates or indium tin oxide (ITO) coated glass substrates in a deposition chamber attached to a VG ESCALAB 220i XL photoelectron spectroscopy system. PFO was spin coated from a toluene solution (1 5wt%) to form the films with thicknesses of 7~15nm on Au coated Si substrates or on ITO coated glass substrates. After first time measurements, the freshly prepared samples were put into air for storage at room temperature for further measurements. The relative humidity during storage was 60~70%, and the storage duration was from 1 hour to 28 days. We used the He Ⅱ excitation line(40 8eV) from a He discharge lamp for the UPS measurements and a monochromatised Al Kα excitation line(1 486 6eV) for the XPS measurements. A clean Au film on Si substrate was used for the Fermi level (E F) and the binding energy calibration. Surface morphologies of the films were observed in air by Scientific Auto probe CP AFM. The PL properties of the films were obtained by Perkin Elmer LS 50B Luminescence Spectrometer. UPS results indicated that the electronic structure of Alq film were obviously changed upon 1 hour exposure to air while that of PFO film was slowly changed with increasing the storage time up to 28 days,but this change was hardly discernible after 1 week storage in air.XPS results indicated that Al bonding and N bonding in Alq molecule were easily influenced by H 2O and O 2 while C—C bonding in PFO was not easily attacked by H 2O and O 2.AFM revealed that the surface morphology of Alq film was also obviously changed after exposure to air but that of PFO film remained basically unchanged.The PL peak intenstity of Alq film was quenched rapidly in the air while that of PFO film was decreased much slowly.Therefore,PFO is a rather stable light emitting material used in polymer light emitting devices.

分别采用紫外光电子能谱 (UPS)、X光电子能谱 (XPS)、原子力显微镜 (AFM )、以及光致发光光谱(PL)等方法对在大气存放条件下的 8 羟基喹啉铝 (Alq)薄膜和聚 ( 9,9 二辛烷基芴 ) (PFO)薄膜的电子结构、表面形貌以及发光特性进行了对比研究。研究结果表明 ,PFO的电子结构、表面形貌以及发光特性受外界气氛影响极小 ,是一种非常稳定的聚合物发光材料。这为聚合物发光器件的稳定性提供了有利的条件。

Conjugated polymers are promising organic semi-conducting materials.This article reviews the development of conjugated polymer light-emitting materials,introduces the principle of polymer light-emitting diodes (PLEDs),and discusses the development prospect and exciting problems of PLEDs.

共轭聚合物是一种极有应用前景的有机半导体材料,本文综述其研究进展,包括典型共轭聚合物材料PPV、PT、PF等及PPP的工作原理,发展前景和存在的问题。

 
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