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We present a combined experimental and theoretical analysis of organic solar cells based on bulk heterojunctions. Our simulation based on a drift-diffusion approach shows that a cell with controlled morphology can lead to improved performance. Two ways to realize such structure are identified, based respectively on patterning via nanoimprint techniques and by the use of vertically grown ZnO nanorods...
We present an efficient triple-tandem polymer solar cell with identical poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6, 6)C61 (PCBM) bulk heterojunction as the active layers and highly transparent Al (1 nm)/ MoO3 (15 nm) as the intermediate layer. This intermediate layer is structurally smooth as characterized by atomic force microscopy. Although identical organic active...
We present an efficient tandem polymer organic solar cell (OSC), consisting of the P3HT:PCBM blend as the active layer, in which the bottom and top cells are connected optically and electrically by an Al and MoO3 intermediate layer. Such an intermediate layer has high transparency and can implement the connection of the bottom and top cells in series. The main absorption range of the active layer...
Applying ZnO nanowires for e-paper, field emission display and dye-sensitized solar cell is reported. Firstly, we report an electrochromic (EC) e-paper using a viologen-modified ZnO nanowire array as the EC electrode. The ZnO nanowire array was grown directly on an indium tin oxide (ITO) glass by a low temperature aqueous thermal decomposition method and then modified with viologen molecules. The...
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