Two novel naphtho[1,2-c：5,6-c]bis（1,2,5-thiadiazole） and alkoxylphenyl substituted benzodithiophene based copolymers were developed as the donor materials for polymer solar cells. The resulting copolymers exhibit b...Two novel naphtho[1,2-c：5,6-c]bis（1,2,5-thiadiazole） and alkoxylphenyl substituted benzodithiophene based copolymers were developed as the donor materials for polymer solar cells. The resulting copolymers exhibit broad absorption bands in the range of 500--800 nm in thin films and deep highest occupied molecular orbital energy levels of-5.39 eV and -5.36 eV, respectively. The best device performance was achieved by PI, with an open-circuit voltage of 0.85 V, a short-circuit current density of 8.65 mA·cm^-2, a fill factor of 37.8%, and a power conversion efficiency of 2.78%.展开更多
Mass spectrometric behaviour of （R） -1- （ 4-alkylphenyl ） alcohols, 1- （4-alkoxylphenyl） alcohols, and 1- （4-alkylthiophenyl） alcohols were studied with the aid of mass-analyzed ion kinetic energy spectrometry...Mass spectrometric behaviour of （R） -1- （ 4-alkylphenyl ） alcohols, 1- （4-alkoxylphenyl） alcohols, and 1- （4-alkylthiophenyl） alcohols were studied with the aid of mass-analyzed ion kinetic energy spectrometry under electron impact ionization. All the title compounds show a tendency to eliminate a water molecule to form alkene ions and undergo an a-cleavago to produce protonated aldehyde ions by the loss of alkyl radicals. Except these two common fragment ions, they also show some different fragmentations due to with or without oxy/thioether-linkage.展开更多
文摘Two novel naphtho[1,2-c：5,6-c]bis（1,2,5-thiadiazole） and alkoxylphenyl substituted benzodithiophene based copolymers were developed as the donor materials for polymer solar cells. The resulting copolymers exhibit broad absorption bands in the range of 500--800 nm in thin films and deep highest occupied molecular orbital energy levels of-5.39 eV and -5.36 eV, respectively. The best device performance was achieved by PI, with an open-circuit voltage of 0.85 V, a short-circuit current density of 8.65 mA·cm^-2, a fill factor of 37.8%, and a power conversion efficiency of 2.78%.
文摘Mass spectrometric behaviour of （R） -1- （ 4-alkylphenyl ） alcohols, 1- （4-alkoxylphenyl） alcohols, and 1- （4-alkylthiophenyl） alcohols were studied with the aid of mass-analyzed ion kinetic energy spectrometry under electron impact ionization. All the title compounds show a tendency to eliminate a water molecule to form alkene ions and undergo an a-cleavago to produce protonated aldehyde ions by the loss of alkyl radicals. Except these two common fragment ions, they also show some different fragmentations due to with or without oxy/thioether-linkage.
