Electrophoretically deposited TiO2 compact layers using aqueous suspension for dye-sensitized solar cells.

Electrophoretically deposited TiO2 compact layers using aqueous suspension for dye-sensitized solar cells.
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使用用于染料敏化太阳能电池的水悬浮液电泳沉积 TiO2 致密层。

DOI:
10.1039/c3cp51705e
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发表时间:
2013
期刊:
PCCP
影响因子:
--
通讯作者:
Li X
Li X
中科院分区:
--
文献类型:
--
作者:
Li X

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通过电泳沉积(EPD)从水性纳米颗粒悬浮液制备的TiO 2致密层(CL)用于染料敏化太阳能电池(DSSC)中以防止透明的掺氟氧化锡(FTO)基板和电解质之间的界面处的电荷复合。TiO 2纳米粉末(ca. 4.5通过连续水热流合成中试装置(以约100 nm直径的生产速率)制备用于EPD方法的悬浮液。0.38 kg h−1)。用于DSSC的TiO 2 CL的最佳厚度约为115 nm。与没有CL的DSSC相比,最佳电池的短路电流密度(JSC)和太阳能转换效率分别提高了13.1%和15.0%。通过暗电流和电化学阻抗谱的测量,研究了其性能改善的机理。在FTO/电解质界面处的界面电荷转移电阻在电池中制造CL后增加,表明界面处的电子复合受到抑制。
TiO2 compact layers (CLs) prepared by electrophoretic deposition (EPD) from an aqueous nanoparticle suspension were used in dye-sensitized solar cells (DSSCs) to prevent charge recombination at the interface between the transparent fluorine-doped tin oxide (FTO) substrate and the electrolyte. The TiO2 nanopowder (ca. 4.5 nm diameter) suspension used in the EPD process was prepared via a continuous hydrothermal flow synthesis pilot plant (at a production rate of ca. 0.38 kg h−1). The optimal thickness of the TiO2 CL for DSSCs is about 115 nm. Compared to the DSSCs without a CL, the optimal cell has shown improved short-circuit current density (JSC) and solar energy conversion efficiency by 13.1% and 15.0%, respectively. The mechanism for improved performance has been studied by the measurements of dark current and electrochemical impedance spectra. The interfacial charge transfer resistance at the FTO/electrolyte interface is increased after fabricating a CL in the cell, indicating inhibited electron recombination at the interface.
基于 SnO2-染料-P3HT 的固态染料敏化太阳能电池中增强的电子接触。
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