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- W2340125269 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 AND's 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 Diode Ⅰ and in Diode Ⅱ respectively, NPB is used as hole transport layer, Alq3 as an electronic transport layer in this structure. Little difference of the maximum peak of EL spectra between two Diodes is found, which is 432 nm in Diode Ⅰ and 433 nm in Diode Ⅱ, 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 Diode Ⅱ while only a current efficiency of 1.5 cd/A with CIE of (x=0.15, y=0.10) is found in Diode Ⅰ. 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." @default.
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- W2340125269 date "2006-10-01" @default.
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- W2340125269 title "Purity Effects on the Electroluminescent Performance of 9,10-Di(2-naphthyl) Anthracene" @default.
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