发光学报2006，Vol.27Issue(5)：670-674,5.
纯化9,10-二萘蒽对OLED器件光电性能的影响
Purity Effects on the Electroluminescent Performance of 9,10-Di(2-naphthyl)anthracene
摘要
Abstract
Organic light-emitting diode (OLED) has attracted considerable attention due to their unique image quality and market potentials in display application. For the full-color display applications, it is essential to deliver the primary RGB emitters with high luminous efficiency, saturated color chromaticity, among which 9, 10-Di (2-naphthyl) anthracene (ADN) is one of the stable and pure blue emitters. However, little attention has been paid to the influences of ADNs purification on the electroluminescent(EL) performance.Synthesis and purification of ADN were studied. The photoluminescence (PL) and electroluminescence (EL) spectra of ADN synthesized and purified are investigated, respectively. The PL spectrum of ADN purified exhibits an emitting peak at 434 nm with a full-width at half-maxium (FWHM) of 54.2 nm, while the rough material without purification is red shifted to 436 nm with the same FWHM of 54.2 nm. Organic light-emitting diodes (OLEDs) with a structure of indium tin oxide (ITO) (100 nm)/N,N′-biphenyl-N,N′-bis-(1-naphenyl)-［1,1′- biphenyl］-4,4′-diamine (NPB)(40 nm)/ADN（30 nm）/tris(8-quinolinolate)aluminum(Alq3)(20 nm)/LiF(1 nm)/Al(100 nm) are fabricated, where the rough and purified ADN are used as emitting layers in DiodeⅠand in DiodeⅡ, respectively, NPB is used as hole transport layer, Alq3 as an electronic transport layer in this structure. Little diffe-rence of the maximum peak of EL spectra between two Diodes is found, which is 432 nm in DiodeⅠand 433 nm in DiodeⅡ, a current efficiency of 2.5 cd/A with the Commission Internationale d′Eclairage (CIE) coordinates of（x=0.15，y=0.06） is got in DiodeⅡ while only a current efficiency of 1.5 cd/A with CIE of (x=0.15，y=0.10) is found in DiodeⅠ. It is supposed that the purification of the ADN rough material has a positive effect on the EL characteristics of the OLED， meanwhile with fewer impacts on the PL spectra. Therefore the purification can be improved the performance of OLED greatly.关键词
9,10-二萘蒽合成/提纯/色坐标/光电性能Key words
ADN synthesis/purification/CIE color coordinates/electroluminescent performance分类
信息技术与安全科学引用本文复制引用
李瑛,王文根,邵明,王秀如,汤昊,孙润光..纯化9,10-二萘蒽对OLED器件光电性能的影响[J].发光学报,2006,27(5):670-674,5.基金项目
国家自然科学基金(50243020) （50243020）
国家"973"计划(2002CB613405)资助项目 Project supported by National Science Foundation of China (50243020) （2002CB613405）
"973" Program ( 2002CB613405) （ 2002CB613405）
