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首页> 外文期刊>Transactions of the Indian Ceramic Society >Synthesis and Characterization of Nanocrystalline TiO_2 Thin Films for Use as Photoelectrodes in Dye Sensitized Solar Cell Application
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Synthesis and Characterization of Nanocrystalline TiO_2 Thin Films for Use as Photoelectrodes in Dye Sensitized Solar Cell Application

机译：染料敏化太阳能电池中光电极用纳米TiO_2薄膜的合成与表征

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摘要

In the event of escalating gasoline prices resulting from threatened oil reserves and nuclear meltdowns endangering the quality of life in near future it is expected that science would make priceless contributions to green technology and come up with environment friendly solutions. Third generation photovoltaic solar cells have attracted researchers in this respect. Dye-sensitized solar cell (DSSC) is a novel category of economical photovoltaic cell that belongs to the group of thin film solar cells. The ability of developing and modifying nanoparticles has given scope to produce dye sensitized solar cells with a principle similar to that of photosynthesis. Promising efficiencies of around 11% have given scope for investment and advancement of this sector to get cheaper renewable solar energy available in abundance. The underlying principle uses a network of nanocrystalline TiO_2 on a glass plate coated with transparent conducting oxide. Sensitization of nanocrystalline TiO_2 network with dye enhances the efficiency of the cell. Nanocrystalline TiO_2 has been synthesized by modifying titanium isopropoxide with diacetyl acetone, diacetyloxime and also by peptization with HNO_3. The mean size of the particles is around 10-20 nm. Dip and spin coated electrodes (ITO glass substrate) with different thicknesses by multi layer deposition has been annealed at different temperatures. The deposited thin films are characterized by FTIR, UV-Vis and XRD for structural conformation, transmittance and phase confirmation respectively. Photovoltaic characterization has been done under dark condition to establish the semiconductor diode properties of the synthesized and modified TiO_2 pastes using source meter, and model parameters have been evaluated by considering equivalent diode model for the solar cell.
机译：万一在不久的将来，由于石油储量的威胁和核危机而危及生活质量，汽油价格不断上涨，人们预计科学将为绿色技术做出无价的贡献，并提出环保的解决方案。第三代光伏太阳能电池在这方面吸引了研究人员。染料敏化太阳能电池（DSSC）是一种经济的新型光伏电池，属于薄膜太阳能电池。开发和修饰纳米颗粒的能力已经赋予了生产与光合作用原理相似的染料敏化太阳能电池的范围。大约11％的有前途的效率为该行业的投资和发展提供了空间，以获取更便宜的可再生太阳能。基本原理是在涂有透明导电氧化物的玻璃板上使用纳米晶TiO_2网络。用染料敏化纳米晶TiO_2网络可提高电池效率。纳米晶TiO_2是通过用二乙酰丙酮，二乙酰肟修饰异丙醇钛，以及用HNO_3胶溶法合成的。颗粒的平均尺寸为约10-20nm。通过多层沉积具有不同厚度的浸涂和旋涂电极（ITO玻璃基板）已在不同温度下退火。所沉积的薄膜通过FTIR，UV-Vis和XRD表征，分别用于结构构象，透射率和相确认。在黑暗条件下进行了光伏表征，以建立使用源表的合成和改性TiO_2浆料的半导体二极管性能，并通过考虑太阳能电池的等效二极管模型来评估模型参数。

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