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作者:... Jean Manca , Wendimagegn Mammo , Shimelis Admassie
来源:[J].Organic Electronics(IF 3.836), 2020, Vol.77
摘要:Abstract(#br)Two novel high gap donor polymers – PBDTTSi-TzBI and PBDTTS-TzBI , based on imide-fused benzotriazole (TzBI) with asymmetric side chains and alkylsilyl (Si) or alkylthio (S) substituted 4,8-di(thien-2-yl)benzo-[1,2- b :4,5- b ′]dithiophene (BDTT) – are succ...
作者:Wendimagegn Mammo , Ariaya Hymete
来源:[J].Molecules(IF 2.428), 2017, Vol.22 (11)DOAJ
摘要:Malaria is one of the world’s most severe endemic diseases and due to the emergence of resistance to the currently available medicines, the need for new targets and relevant antimalarial drugs remains acute. The crude extract, four solvent fractions and two isolated compound...
作者:Wendimagegn Mammo , Teketel Yohannes
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2006, Vol.20 (2), pp.309-317DOAJ
摘要:New solution-processable, anthrancene- and benzothiadiazole-containing polyfluorene copolymers ( P1 - P3 ) have been synthesized and characterized. The preparation and characterization of the corresponding blue light-emitting devices are also reported. Polymers P2 and P3 show hig...
作者:Wendimagegn Mammo , V.J.T. Raju
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2011, Vol.25 (2), pp.221DOAJ
摘要:A multidentate ligand, 3,4-bis(2-iminomethylphenol)-2,2’:5,2’’-terthiophene (L), has been synthesized by the condensation of 3,4-diamino-2,2’:5,2’’-terthiophene and salicylaldehyde. The ligand and Ni(II) and Zn(II) complexes were synthesized and characterized by IR...
作者:Wendimagegn Mammo , Theodros Solomon ...
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2005, Vol.19 (2), pp.267DOAJ
摘要:The solvatochromic and thermochromic behaviours of phenyl-substituted polythiophenes were studied. The pristine polymers, upon dissolution in chloroform, exhibited blue-shifted absorption. The solid films of the polymers showed significant blue-shifted as well as red-shifted abso...
作者:... Shimelis Admassie , Ahmed M. Mohammed , Wendimagegn Mammo
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2010, Vol.24 (1), pp.93DOAJ
摘要:We report on the effect of the alkoxy chain length on the thermodynamic properties of neutral and the corresponding radical cations of 3-(2’,5’-dibutyloxyphenyl)thiophene (DBOPT), 3-(2’,5’-diheptyloxyphenyl)thiophene (DHOPT), and 3-(2’,5’-dioctyloxyphenyl)thiophene...
作者:Wendimagegn Mammo , Teketel Yohannes
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2007, Vol.21 (3), pp.405DOAJ
摘要:Poly[3-(2',5'-diheptyloxyphenyl)thiophene], PDHOPT, has been prepared electrochemically from its monomer for solar cell application. PDHOPT exhibits a band gap of 2.1 eV. The redox properties of PDHOPT were characterized using cyclic voltammetry. The estimated energy levels ...
作者:Wendimagegn Mammo , Teketel Yohannes
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2006, Vol.20 (2), pp.309DOAJ
摘要:New solution-processable, anthrancene- and benzothiadiazole-containing polyfluorene copolymers ( P1 - P3 ) have been synthesized and characterized. The preparation and characterization of the corresponding blue light-emitting devices are also reported. Polymers P2 and P3 show hig...
作者:Wendimagegn Mammo , Teketel Yohannes
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2007, Vol.21 (3), pp.405-417DOAJ
摘要:Poly[3-(2',5'-diheptyloxyphenyl)thiophene], PDHOPT, has been prepared electrochemically from its monomer for solar cell application. PDHOPT exhibits a band gap of 2.1 eV. The redox properties of PDHOPT were characterized using cyclic voltammetry. The estimated energy levels ...
作者:... Shimelis Admassie , Ahmed M. Mohammed , Wendimagegn Mammo
来源:[J].Bulletin of the Chemical Society of Ethiopia(IF 0.417), 2010, Vol.24 (1), pp.93-102DOAJ
摘要:We report on the effect of the alkoxy chain length on the thermodynamic properties of neutral and the corresponding radical cations of 3-(2’,5’-dibutyloxyphenyl)thiophene (DBOPT), 3-(2’,5’-diheptyloxyphenyl)thiophene (DHOPT), and 3-(2’,5’-dioctyloxyphenyl)thiophene...

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