TiO2/TNO homojunction introduced in a dye-sensitized solar cell with a novel TNO transparent conductive oxide film
TiO2/TNO homojunction introduced in a dye-sensitized solar cell with a novel TNO transparent conductive oxide film
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TiO2/TNO同质结引入具有新型TNO透明导电氧化物薄膜的染料敏化太阳能电池
DOI：
10.1111/jace.15751
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发表时间：
2018
影响因子：
3.9
通讯作者：
Hasegawa Tetsuya
中科院分区：
文献类型：
--
作者：
Okuya Masayuki;Sato Jun;Endo Takeshi;Iwaki Ryo;Takemura Shuichiro;Muramoto Ryosuke;Nagygyorgy Viola;Madarasz Janos;Nakao Shoichiro;Yamada Naoomi;Sakai Enju;Hitosugi Taro;Hasegawa Tetsuya
在这项研究中，采用铌掺杂氧化钛（TNO）作为新型透明导电氧化物（TCO）薄膜，在染料敏化太阳能电池（DSSC）中构建多孔TiO2/TNO同质结。然而，考虑到 TCO 薄膜的电学和光学性能之间的平衡，TNO 的方块电阻被调整为高于典型的氟掺杂氧化锡 (FTO) 的方块电阻。通过在多孔 TiO2 层表面涂覆一层薄薄的氧化铝或氧化镁薄膜以阻止电池内的逆反应，TNO 薄膜电池（TNO 电池）的光伏性能经过优化，几乎可与传统 FTO 薄膜（FTO 电池）相媲美。进行电化学阻抗测量，从电池中电子传输的角度确定详细的光伏性能。R1（ω1的实部）表明多孔-TiO2/TNO界面上的电子传输比多孔-TiO2/FTO界面上的电子传输更有利，这得到了电池在高频范围内的交流相变的支持。我们发现电池中新引入的同质结是将 DSSC 开发成高性能光伏器件的关键概念之一。
In this study, niobium‐doped titanium oxide (TNO) was employed for a novel transparent conductive oxide (TCO) film to construct a porous‐TiO2/TNO homojunction in a dye‐sensitized solar cell (DSSC). However, considering a balance between the electrical and optical properties of the TCO film, the sheet resistance in TNO was tuned to be higher than that in a typical fluorine‐doped tin oxide (FTO). The photovoltaic performance of the cell with the TNO film (TNO cell) was optimized to be almost comparable to that with a conventional FTO film (FTO cell) by coating the surface of the porous‐TiO2layer with a thin alumina or magnesia film to block a back reaction within the cell. An electrochemical impedance measurement was conducted to determine the detailed photovoltaic performance from the viewpoint of electron transportation in the cell.R1, the real part of ω1, indicated that electron transportation at the porous‐TiO2/TNO interface was more favorable than that at the porous‐TiO2/FTO interface, which was supported by AC phase change in the cell at a high‐frequency range. We found that the homojunction newly introduced in the cell is one of the key concepts for developing a DSSC into a high‐performance photovoltaic device.
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影响因子：
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