Junction properties and conduction mechanism of new terbium complexes with triethylene glycol ligand for potential application in organic electronic device

查看全文 作　　者：N.K.Za’[1]aba;M.A.Mohd [1]Sarjidan;[1]W.H.Abd.Majid;Eny [2]Kusrini;Muhammad [3]I.Saleh

机构地区：[1]Low Dimensional Materials Research Centre,Physics Department,University Malaya;[2]Department of Chemical Engineering,Faculty of Engineering,Universitas Indonesia;[3]School of Chemical Sciences,Universiti Sains Malaysia

出　　处：《Journal of Rare Earths》索引2014年第32卷第7期,共8页

基　　金：Project supported by University Malaya and Ministry of Higher Education Malaysia under grant(KPT 1059-2012);Science Fund(SF019-2013);Fundamental Research Grant Scheme(FP033-2013B) 摘　　要：Terbium-picrate triethylene glycol(EO3-Tb-Pic) complex was prepared in thin film and single layer device structure of ITO/EO3-Tb-Pic/Al, using spin coating technique. The UV-Vis absorption spectroscopy analysis was performed to evaluate the electronic molecular transition of the complex. The optical band gap, Eg estimated from the Tauc model revealed that EO3-Tb-Pic thin film exhibited a direct transition with Eg of 2.70 eV. The electronic parameters of the ITO/EO3-Tb-Pic/Al device such as the ideality factor n, barrier height Φb, saturation current Io, and series resistance Rs, were extracted from the conventional lnI-V, Cheung's functions and Norde's method. It was found that the evaluated parameters calculated from Norde's and Cheung's methods were consistent with those calculated from the conventional I-V method. In the double logarithmic I-V plot, three distinct regions based on the slope were identified, and the conduction mechanisms were discussed and explained. The mobility, μ value was estimated from SCLC region as 2.58?10–7 cm2/(V·s). This newly obtained lanthanide complex may be potentially utilized in electronic devices. 关键词：有机电子器件铽络合物传导机制三乙二醇应用配体性能吸收光谱分析

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Junction properties and conduction mechanism of new terbium complexes with triethylene glycol ligand for potential application in organic electronic device

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