The Effect of Different Wavelengths of Light upon the Photostability of TiO 2 Based Dye-Sensitized Solar Cells
The Effect of Different Wavelengths of Light upon the Photostability of TiO 2 Based Dye-Sensitized Solar Cells
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不同波长的光对TiO 2 基染料敏化太阳能电池光稳定性的影响
DOI：
10.1149/1.3628611
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Robinson A
中科院分区：
文献类型：
--
作者：
Robinson A
染料敏化太阳能电池（DSC）在金属基底上的应用是DSC技术在建筑集成光电池（BIPV）应用中的一个潜在的令人兴奋的飞跃。目前，最具成本效益的DSC使用TiO 2作为工作电极。延长器件寿命的一个重大挑战是TiO 2对波长低于387 nm（金红石TiO 2的带隙）和413 nm（金红石TiO 2的带隙）的光的有效屏蔽。本文提出了一种方便的方法来测量原位TiO 2的光活性，通过测量气体的副产物（CO2，H2O和HCl）的光催化矿化的均质PVC-TiO 2膜。测量已经使用一个专门开发的紫外线照射细胞连接到一个闭环FTIR CO2检测反应器。该实验装置已被用于与肖特玻璃过滤器相结合，通过监测在各种不同波长的光下的CO2释放来评估光降解的动力学。
The application of Dye-Sensitized Solar Cell's (DSC's) to metal substrates is a potentially exciting leap in the application of DSC technology to building integrated photovoltaics (BIPV). Currently, the most cost efficient DSCs use TiO2 as a working electrode. A significant challenge for extending device lifetime is the effective shielding of the TiO2 to light of wavelengths lower than 387nm (band gap of anatase TiO2) and 413nm (band gap of rutile TiO2). This paper presents a convenient method to measure in situ TiO2 photoactivity by measuring the gaseous by-products (CO2, H2O and HCl) of photo-catalytic mineralisation of homogeneous PVC-TiO2 films. Measurements have been made using a specially developed UV irradiation cell attached to a closed loop FTIR CO2 Detection Reactor. This experimental set up has been used in combination with Schott glass filters to evaluate the kinetics of photodegradation by monitoring CO2 evolution at various different wavelengths of light.