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中文摘要：
利用一种新材料（E）-2-（2-（9-ethyl-9H-carbazol-3-yl）vinyl）quinolato-Zinc（CzHQZn）作空穴传输层和发光层制备了白光有机电致发光器件（WOLED）,器件的结构为indium-tin oxide（ITO）/4,4′,4′′-{N,-（2-naphthyl）-N-phenylamino}-triphenylamine（2T-NATA）（22 nm）/CzHQZn（xnm）/N,N′-bis-（1-naphthyl）-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine（NPBX）（ynm）/2,9-dimethyl,-4,7-diaphenyl,1,10-phenanthroline（BCP）（10nm）/tris（8-quinolinolato）aluminum（Alq3）（68-x-ynm）/LiF（0.5 nm）/Al。研究发现发光层CzHQZn和NPBX的厚度对器件的发光性能有较大的影响。当CzHQZn厚度x为22 nm、NPBX厚度y为8 mm时,得到了色度最好和效率最大的WOLED,最大电流效率为0.9 cd/A（at ...
英文摘要：
The white organic light-emitting devices （WOLEDs） are fabricated by using a novel yellow CzHQZn as hole-transporting/emitting layer. The device structure is indium-tin oxide（ITO）/ 4,4＇ ,4- IN,-（2-naphthyl）-N-phenylamino}-triphenylamine （2T-NATA） （22 nm）/CzHQZn（x nm）/N, N ＇-his- （1-naphthyl）-N, N ＇-diphenyl-1, l＇-biphenyl-4,4＇-diamine （NPBX） （y nm） / 2,9-dimethyl,-4,7-diaphe- nyl, 1,10-phenanthroline （tg2P） （ 10 nm） / tris （8-quinolinolato） aluminum （ Alq3 ） （68 -- x-- y nm） / LiF （0.5 nm）/Al. It is found that the thicknesses of CzHQZn and NPBX have great influence on the per formance of the WOLED. When y=22,x=8,a WOLED is achieved with a maximum luminous efficiency of 0.9 cd · A^-1 （at 7 V） ,a maximum luminance of 3 514 cd m-2 （at 10 V） ,and CIE coordinates of （0. 357 9,0. 318 2）. Thus, the close point remains in the white-light-region and is close to the equal-energy white point （0. 33,0. 33）. The turn-on voltage of the device is lower than 5 V.
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