使用甲醇溶剂熏蒸聚(4,8-双[5-(2-乙基己基)噻吩-2-基]苯并[1,2-b;4,5-b']双噻吩-2,6-双基-{4-(2-乙基己基)-3-氟代噻吩[3,4-b]噻吩-}-2-羧基-2,6-双基)(PTB7-Th)和聚[N,N'-双(2-辛基十二烷基)-1,4,5,8-萘二酰亚胺-2,6-双基-并-...使用甲醇溶剂熏蒸聚(4,8-双[5-(2-乙基己基)噻吩-2-基]苯并[1,2-b;4,5-b']双噻吩-2,6-双基-{4-(2-乙基己基)-3-氟代噻吩[3,4-b]噻吩-}-2-羧基-2,6-双基)(PTB7-Th)和聚[N,N'-双(2-辛基十二烷基)-1,4,5,8-萘二酰亚胺-2,6-双基-并-5,5'-(2,2'-双噻吩)](N2200)二元混合的活性层薄膜,发现其活性层和镀金探针间的接触电势差从37 m V升高到160 m V,表明活性层表面功函由4.71 e V降低到4.59 e V.XPS结果表明,由于甲醇和N2200之间更强的相互作用,在溶剂熏蒸过程中有更多的N2200分子扩散到薄膜表面.扩散引起了活性层表面功函的减小,使活性层和电极之间能级更加匹配,形成了更好的欧姆接触,使器件的功率转化效率提高了10%以上.展开更多
A method of analysis of experimental kinetic dependences of isothermal depolarization currents in metal-oxide varistor ceramics composed of ZnO–Bi_(2)O_(3)–CoO–Sb_(2)O_(3)–SnO_(2)–MnO–B_(2)O_(3) has been propose...A method of analysis of experimental kinetic dependences of isothermal depolarization currents in metal-oxide varistor ceramics composed of ZnO–Bi_(2)O_(3)–CoO–Sb_(2)O_(3)–SnO_(2)–MnO–B_(2)O_(3) has been proposed and tested.The method is based on reconstruction of dependences with the use of the Kohlrausch–Williams–Watt function.Expansion of the distribution and reduction of the average time of dielectric relaxation of the depolarization were found as the magnitude of the polarizing electric field increased.These findings have been interpreted in the framework of the notion of participation in the recharge of localized states more distant from the Fermi level in the crystallites of zinc-oxide ceramics under increased polarizing fields.展开更多
文摘使用甲醇溶剂熏蒸聚(4,8-双[5-(2-乙基己基)噻吩-2-基]苯并[1,2-b;4,5-b']双噻吩-2,6-双基-{4-(2-乙基己基)-3-氟代噻吩[3,4-b]噻吩-}-2-羧基-2,6-双基)(PTB7-Th)和聚[N,N'-双(2-辛基十二烷基)-1,4,5,8-萘二酰亚胺-2,6-双基-并-5,5'-(2,2'-双噻吩)](N2200)二元混合的活性层薄膜,发现其活性层和镀金探针间的接触电势差从37 m V升高到160 m V,表明活性层表面功函由4.71 e V降低到4.59 e V.XPS结果表明,由于甲醇和N2200之间更强的相互作用,在溶剂熏蒸过程中有更多的N2200分子扩散到薄膜表面.扩散引起了活性层表面功函的减小,使活性层和电极之间能级更加匹配,形成了更好的欧姆接触,使器件的功率转化效率提高了10%以上.
文摘A method of analysis of experimental kinetic dependences of isothermal depolarization currents in metal-oxide varistor ceramics composed of ZnO–Bi_(2)O_(3)–CoO–Sb_(2)O_(3)–SnO_(2)–MnO–B_(2)O_(3) has been proposed and tested.The method is based on reconstruction of dependences with the use of the Kohlrausch–Williams–Watt function.Expansion of the distribution and reduction of the average time of dielectric relaxation of the depolarization were found as the magnitude of the polarizing electric field increased.These findings have been interpreted in the framework of the notion of participation in the recharge of localized states more distant from the Fermi level in the crystallites of zinc-oxide ceramics under increased polarizing fields.
