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Optical properties for N,N’-bis (lnaphyhly)N,N’-diphenyl-1,1’-biphenyl-4,4’-diamine and tris (8-hydroxyquinolinato) aluminum in organic light emitting devices 被引量:1
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作者 Mei Yee Lim Wan Mahmood Mat Yunus +1 位作者 Zainal Abidin Talib Anuar Kassim 《Natural Science》 2010年第6期631-634,共4页
The optical properties of N,N’-bis (Inaphthyl)N,N’-diphenyl-1,1’-biphenyl-4,4’-diamine (NPB) and tris (8-hydroxyquinolinato) aluminum (Alq3) organic materials used as hole transport and electron transport layers i... The optical properties of N,N’-bis (Inaphthyl)N,N’-diphenyl-1,1’-biphenyl-4,4’-diamine (NPB) and tris (8-hydroxyquinolinato) aluminum (Alq3) organic materials used as hole transport and electron transport layers in organic light-emitting devices (OLED) have been investigated. The NPB and Alq3 layers were prepared using thermal evaporation method. The results show that the energy band gap of Alq3 is thickness independence while the energy band gap of NPB decreases with the increasing of sample thickness. For the case of photoluminescence the Alq3 with thickness of 84 nm shows the highest relative intensity peak at 510 nm. 展开更多
关键词 Energy Band Gap n n-bis (Inaphthyl) -n n’-Diphenyl-1 1’-biphenyl-4 4’-Diamine Tris (8 Hydroxyquinolinato) Aluminum Organic Light Emitting Diode Photoluminescence
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IR, 1H NMR, Electronic Properties and Conductivity Studies of N1 ,N4-Bis(Diphme)Benzene-l,4-Diamine Chloride Zirconium (IV) [{(Ar)2NC6H5N(Ar)2}ZrCl4] (Ar = C6H5)
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作者 Salem Et. Ashoor 《Journal of Chemistry and Chemical Engineering》 2011年第3期259-263,共5页
A range of new compounds such as N1,N4-bis(diphenylmethlene)benzene-l,4-diamine zirconium (IV) chloride [{(Ar)2NC6HsN(Ar)z}ZrCl4] (Ar = C6H5) complex counting the chelating amine and chloride in position tra... A range of new compounds such as N1,N4-bis(diphenylmethlene)benzene-l,4-diamine zirconium (IV) chloride [{(Ar)2NC6HsN(Ar)z}ZrCl4] (Ar = C6H5) complex counting the chelating amine and chloride in position trans have been prepared. Well-defined NI,N4-bis(diphenylmethlene)benzene-l,4-diamine zirconium (IV) chloride [{(Ar)2NC6H5N(Ar)2}ZrCl4] (Ar = C6H5) was obtained by stoichiometric addition of {(Ar)2NC6H5N(Ar)2} (Ar = C6H5) and {ZrC14} in ethanol at reflex temperature. IR, 1H NMR, electronic properties using hyperchem program study has been improved for this compound such as bond distance, and this compound was also defined as electric conductivity which proves to be useful for conductively compound. 展开更多
关键词 Electronic conductivity nI n4-bis(diphme)benzene-1 4-diamine n1 n4-bis(diphenylmethlene)benzene-1 4-diaminezirconium (IV) chloride.
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Electronic spectroscopy and photochromic mechanism of bis-Schiff bases, N, N'-bis(2-hydroxy-1-naphthylidene)-1,4-phenyldiamine 被引量:2
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作者 明阳福 黄震年 +3 位作者 樊美公 许宝安 金声 姚思德 《Science China Chemistry》 SCIE EI CAS 1997年第4期373-379,共7页
The steady state and transient state absorption spectra and fluorescence spectra of N,N’-bis(2-hy-droxy-1-napbthylidcne)-1,4-phenyldiamme ( BNP ) in cyclohexane and acetonitrile were determined.The pho-tochromic mech... The steady state and transient state absorption spectra and fluorescence spectra of N,N’-bis(2-hy-droxy-1-napbthylidcne)-1,4-phenyldiamme ( BNP ) in cyclohexane and acetonitrile were determined.The pho-tochromic mechanism was discussed In nonpolar solvents,BNP exists mainly in the enol form and has the absorption maximum in the UV region In polar solvents,however,both the enol and proton transfer tautomer are formed,but the farmer is the main one Fluorescence emissions result from the excited state of proton transfer product. 展开更多
关键词 absorption SPECTROSCOPY FLUORESCEnCE SPECTROSCOPY n n-bis(2-hydroxy-l-naphthylidene)-1 4-phenyldiamine
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基于NPB的垂直构型有机发光晶体管的光电特性研究 被引量:4
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作者 杨盛谊 杜文树 +1 位作者 齐洁茹 娄志东 《物理学报》 SCIE EI CAS CSCD 北大核心 2009年第5期3427-3432,共6页
通过将有机空穴阻挡材料BCP薄层插入垂直构型有机发光晶体管器件ITO/NPB(40nm)/Al(30nm)/NPB(20nm)/Alq3(55nm)/Al中的不同位置对器件光电特性的影响来研究器件漏电流较大的原因以及器件中具体的载流子过程.充分证明了栅极注入的空穴对... 通过将有机空穴阻挡材料BCP薄层插入垂直构型有机发光晶体管器件ITO/NPB(40nm)/Al(30nm)/NPB(20nm)/Alq3(55nm)/Al中的不同位置对器件光电特性的影响来研究器件漏电流较大的原因以及器件中具体的载流子过程.充分证明了栅极注入的空穴对沟道中的电流有贡献.进而通过用LiF薄层修饰漏极来增强电子的注入并减小漏电流,得到了相对稳定的发光晶体管器件,其发光强度有很大提高并可很好地由栅极电压来进行调控.更换发光材料层容易得到不同颜色的发光晶体管. 展开更多
关键词 垂直构型有机发光晶体管(VOLET) 静电感应晶体管(SIT) nPB(n n′-diphenyl-n n-bis(1-naphtyl)-1 1′-biphenyl-4 4′-diamine)
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