Journal
NEW JOURNAL OF CHEMISTRY
Volume 39, Issue 12, Pages 9591-9595Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nj01860a
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Funding
- NRF - MSIP [2013R1A1A2074468]
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Three (D-A-D)-type electron donor materials, containing 2,1,3-benzothiadiazole as the electron-withdrawing core, and benzothiophene, naphthalene, and thiophene as electron-donating terminal groups, were synthesized for vacuum-depositable small-molecule organic solar cells. The donor material containing thiophene as the terminal group, DT, shows a maximum power conversion efficiency of 4.13%, a short-circuit current density of 9.89 mA cm(-2), an open-circuit voltage of 0.86 V, and a fill factor of 0.48, in a bulk heterojunction solar cell with a blend ratio of DT: C-70 = 1:4 under simulated AM 1.5 solar irradiation at 100 mW cm(-2).
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