Electrospraying tuned photoanode structures for dye-sensitized solar cells with enhanced energy conversion efficiency
Electrospraying tuned photoanode structures for dye-sensitized solar cells with enhanced energy conversion efficiency
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用于染料敏化太阳能电池的电喷雾调谐光电阳极结构，具有增强的能量转换效率
DOI：
10.1016/j.jpowsour.2010.09.017
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发表时间：
2011-02
影响因子：
9.2
通讯作者：
Xie, Erqing
中科院分区：
文献类型：
--
作者：
Lan, Wei;Li, Xiaodong;Zhang, Yongzhe;Song, Jie;Lu, Bingan;Zhou, Jinyuan;Zhang, Zhenxing;Xie, Erqing
采用静电喷涂（ESC）法，以市售粉末（P25）为原料制备了纳米TiO 2电极。膜的结构和形态最终影响电池性能，可以通过改变毛细管喷嘴和FTO基板之间的距离（喷涂距离）来控制。详细讨论了结构和形貌演变的可能机制。电池短路光电流密度最大时的最佳喷涂距离为6cm，填充因子最低。短路光电流密度的提高主要归因于电解质“中继站”的存在使膜中的离子扩散路径更好。填充因子低的原因可能是由于薄膜中的二次球导致FTO/TiO 2界面电阻增加。此外，通过使用双层结构（由7 μm的刮刀底层和10 μm的电喷涂涂层顶层组成），已经观察到增强的能量转换效率。
Nanocrystalline TiO2electrodes have been fabricated using commercially available powers (P25) by electrospray coating (ESC) method. The structures and morphologies of the film, which ultimately influence the cell performance, can be controlled by changing the distance between the capillary nozzle and the FTO substrate (spraying distance). A possible mechanism of the evolution of the structures and morphologies has been discussed in detail. The optimized spraying distance for the maximum short-circuit photocurrent density of the cells is 6cm, while accompanying with the lowest fill factor. The improvement of short-circuit photocurrent density can be mainly ascribed to the better ion-diffusion path, which is caused by presence of the electrolyte “relay stations” in the film. The low fill factor may be attributed to the increase of the resistance at FTO/TiO2interface, which may be caused by the secondary spheres in the film. In addition, enhanced energy conversion efficiencies have been observed by using a double-layer structure, which consists of a doctor-bladed 7-μm bottom layer and an electrospray coated 10-μm top layer.
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影响因子：
2.9
作者：
Sun Lae Kim;Song-Rim Jang;R. Vittal;Ji-won Lee;Kang‐Jin Kim
通讯作者：
Sun Lae Kim;Song-Rim Jang;R. Vittal;Ji-won Lee;Kang‐Jin Kim
影响因子：
3.3
作者：
Papageorgiou, N;Barbé, C;Grätzel, M
通讯作者：
Grätzel, M
影响因子：
6.9
作者：
M. Okuya;K. Nakade;S. Kaneko
通讯作者：
M. Okuya;K. Nakade;S. Kaneko
影响因子：
3.9
作者：
Hoshikawa, T;Yamada, M;Eguchi, K
通讯作者：
Eguchi, K
DOI：
10.1063/1.1812741
发表时间：
2004-11
期刊：
The Journal of chemical physics
影响因子：
--
作者：
M. Dürr;G. Kron;U. Rau;J. Werner;A. Yasuda;G. Nelles
通讯作者：
M. Dürr;G. Kron;U. Rau;J. Werner;A. Yasuda;G. Nelles