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Novel π-conjugated polymers PSePDBDT1 and PSePDBDT2 containing seleno[3,4-c]pyrrole-4,6-dione and benzo[1,2-b:4,5-b′]dithiophene units were synthesized, and their thermal, optical and photovoltaic properties were compared with those of the corresponding thiophene-based polymer, PTPDBDT2, containing sulfur instead of selenium. PSePDBDT2 exhibited higher thermal stability and a narrower bandgap than...
Chemical bath deposited titanium oxide (TiO x ) as an electron collection layer is introduced between the organic layer and the indium tin oxide (ITO) electrode for improving the performance of inverted bulk-heterojunction organic thin film solar cells with 1cm 2 active area, where regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61 butyric acid methyl ester (PCBM)...
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