资料摘要
资料下载Long-range ordered cubic mesoporous TiO2 films with 300 nm thickness were fabricated on fluorine-doped tin oxide (FTO) substrate by evaporation-induced self-assembly (EISA) process using F127 as a structure-directing agent. The prepared mesoporous TiO2 film (Meso-TiO2) was applied as an interfacial layer between the nanocrystalline TiO2 film (NC-TiO2) and the FTO electrode in the dye-sensitized solar cell (DSSC). The introduction of Meso-TiO2 increased Jsc from 12.3 to 14.5 mA/cm2, and Voc by 55 mV, whereas there was no appreciable change in the fill factor (FF). As a result, the photovoltaic conversion efficiency (η) was improved by 30.0% from 5.77% to 7.48%. Notably, introduction of Meso-TiO2 increased the transmittance of visible light through the FTO glass by 23% as a result of its excellent antireflective role. Thus the increased transmittance was a key factor in enhancing the photovoltaic conversion efficiency. In addition, the presence of interfacial Meso-TiO2 provided excellent adhesion between the FTO and main TiO2 layer, and suppressed the back-transport reaction by blocking direct contact between the electrolyte and FTO electrode.
文献贡献者
染料敏化太阳能电池DSSC
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锂离子电池电解质
简介：Nature SR-JLU-Integrated Solid-Nanoporous Copper-Oxide Hybrid Bulk Electrodes for High-performance Lithium-Ion Batteries
阻抗文献7
简介：Performance of non-porous graphite and titanium-based anodes in microbial fuel cells
阻抗文献6
简介：Influence of CO2 on ionic conductivity of anion exchange membrane for alkaline DMFCs
阻抗文献5燃料电池
简介：Electrochemical impedance spectroscopy (EIS) is in potential a powerful tool for the in depth analysis of microbial fuels cells (MFCs). To prevent the risk of drawing false conclusions from invalid EIS measurements we investigated the feasibility of this method on an MFC by checking: linearity, causality, stability and finiteness. EIS application under steady state conditions was partly feasible. For further application EIS on MFCs we recommend to: (1) use the constant anode or cathode potential measurement mode with a fast couple at the counter electrode; (2) record the polarization curve and measure at different amplitudes to check the linearity condition; (3) perform preliminary measurements to reveal measurement presets; (4) apply prolonged pretreatment to facilitate the stability criterion; (5) perform duplicate measurements to examine the stability; (6) use a broad frequency range to validate the finiteness criterion; (7) use a statistical based validation check based on the Kramers-Kronig transformation.
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