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 Wysłany: Sob 1:59, 04 Gru 2010 Temat postu: ugg italia A combination of liquid crystal propert |
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A combination of liquid crystal properties of polyimide
ShiJ,[link widoczny dla zalogowanych], TangCW. [C]. MacmmolSymp,[link widoczny dla zalogowanych], 1998,125 l1. [9] HammondPR. [J]. OptComm, 1979,29 (3): 331. [1o] KwongRC,[link widoczny dla zalogowanych], SibleyS, DubovoyT, ata1. [J]. ChemMater,[link widoczny dla zalogowanych], Zhang step the new (1966), male, Zhejiang Hangzhou. In the PhD, he has been engaged in solar cells, optical sensing, laser physics and applications of optical metrology research and teaching. OrganiclightemittingdiodeasedonanovelredmaterialZHANGBu-xin, MAChang-qi2, JIANGXue-yin, ZHANGZhi-lin, ZHANGBao-wen2. XUShao-hong (1.SchoolofMaterialScienceandEngineering, ShanghaiUniversity, Shanghai201800.China; 2.TechnicalInstituteofPhysicsandChemistry, ChineseAcademyofSciences. Beijing100101.China) Abstract: Inthispaper,[link widoczny dla zalogowanych], anovelredluminescentmaterialN, N-bis a [4 a [2 a (4 a dicyanomethylene-6 of a methyl-4H -pyran-2 a y1) ethylene] phe-ny1] aniline (BDCM) withtwoelectron-acceptormoieties (4 a dicyanomethyIene) pyranandanelectron-donormoietytriphenylamineforapplicationinorganiclightemittingdiodes (OLED) wasreported. Theresultantcompoundhasastericallywell-hinderedstructureandahighfluorescenceyield. Itsphotoluminescence (PL) ofthiscompoundinsolidfilmandelectroluminescence (EL) havebeenstudied. Basedonitsintensestericallyhinderedstructure, thepureBDCMfilmpreparedshowsabrightredPLemission. The () LEDwithastructureofindiumtinoxide (IT ()) / copperphthalocyanine (CuPc) / 1,3-diphenyl-5 a (1-phenanthreneyI) a 2 a pyrazoIine (DPPP) / BDCM / Mg: Agshowsabrightredemissionandabrightnessof582cd/matadrivingvoltageof19V. whichsuggeststhatBDCMhasexcellentelectrontransportandemittingproperties. AnditcanbefoundthatCIEchromaticitycoordinatesofthedevicewerenearlyunchangedwithincreasingcurrentdensity. Keywords: organicthinfilm; redlightemission; lightemittingdiodes \
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