Table 1 - uploaded by Harald Hoppe
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Source publication
The performance of photovoltaic devices comprising of a donor-acceptor copolymer (benzothiadiazole-fluorenediketopyrrolopyrrole-BTD-F-DKPP) and phenyl-C60-butyric acid methyl ester (PCBM) has been investigated. The ascast
devices performed with very poor power conversion efficiency. Upon application of an additional top-cast treatment
by methanol,...
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Citations
Efficient organic photovoltaic cells (OPV) often contain highly reactive low-work function calcium electron-collecting electrodes. In this work, efficient OPV are demonstrated in which calcium electrodes were avoided by depositing a thin layer of the amine-containing non-conjugated polymer, polyethylenimine (PEIE), between the photoactive organic semiconductor layer and stable metal electrodes such as aluminum, silver, or gold. Devices with structure ITO/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/poly(3-hexylthiophene):indene-C60-bis-adduct (P3HT:ICBA)/PEIE/Al demonstrated overall photovoltaic device performance comparable to devices containing calcium electron-collecting electrodes, ITO/PEDOT:PSS/P3HT:ICBA/Ca/Al, with open-circuit voltage of 775 ± 6 mV, short-circuit current density of 9.1 ± 0.5 mA cm-2, fill factor of 0.65 ± 0.01, and power conversion efficiency of 4.6 ± 0.3%, averaged over 5 devices at 1 sun.
