Browsing by Author "Wu, An-Ju"

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Organic bulk heterojunction photovoltaics incorporating cyclopenteno[60]fullerene monoadducts as n-type materials display superior power conversion efficiency than with PC61BM
(1970-01-01)
Tseng, Po-Yen
;
Hsiao, Huan-Chang
;
Hsieh, Cheng-Ming
;
Wu, An-Ju
;
Chuang, Shih-Ching
Organic bulk heterojunction photovoltaics, merely incorporating monoadducts of cyclopenteno[60]fullerenes (CPFs) as n-type materials and P3HT as p-type materials, display superior power conversion efficiency up to 4.6 +/- 0.12%, superseding that with PC61BM/P3HT (3.8 +/- 0.20%) for ca. 20%, under AM 1.5G irradiation?primarily attributed to the lack of homo-conjugation on CPFs and their higher LUMO energy levels.
Phosphine-catalyzed cycloaddition of enynoates with [60]fullerene via initial phosphines 1,3-addition to enynoates
(2014-08-10)
Wu, An-Ju
;
Chuang, Shih-Ching
;
應用化學系
;
Department of Applied Chemistry
Tricyclohexylphosphine-Catalyzed Cycloaddition of Enynoates with [60]Fullerene and the Application of Cyclopentenofullerenes as n-Type Materials in Organic Photovoltaics
(2016-01-15)
Wu, An-Ju
;
Tseng, Po-Yen
;
Hsu, Wei-Hsin
;
Chuang, Shih-Ching
;
應用化學系
The tricyclohexylphosphine-catalyzed [3 + 2] cycloaddition of (E)-alkyl 5-substituted phenylpent-4-en-2-ynoates with [60]fullerene was studied. This reaction undergoes an initial 1,3-addition of phosphines toward the alpha-carbons of enynoates. Subsequent cycloaddition of the generated 1,3-dipoles with [60]fullerene and elimination of tricyclohexylphosphines resulted in cyclopentenofullerenes in 2043% yields. The isolated cyclopentenofullerenes were observed to serve as n-type materials in organic photovoltaics, providing a maximum average power conversion efficiency of 3.79 +/- 0.29% upon embedding with P3HT in the active layer.