Significant influence of nano-SiO2 on the performance of dye-sensitized solar cells based on P25
Significant influence of nano-SiO2 on the performance of dye-sensitized solar cells based on P25
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纳米SiO2对P25染料敏化太阳能电池性能的显着影响
DOI：
10.1016/j.electacta.2012.07.028
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发表时间：
2012-10
影响因子：
6.6
通讯作者：
Xu, Jinzhang
中科院分区：
文献类型：
--
作者：
Niu, Haihong;Liu, Ling;Wang, Haiping;Zhang, Shouwei;Ma, Qiong;Mao, Xiaoli;Wan, Lei;Miao, Shiding;Xu, Jinzhang
本文介绍了在染料敏化太阳能电池（DSSCs）制备过程中，在TiO2（P25）浆料中加入纳米SiO2制备的一种新型SiO2/TiO2复合光阳极。研究了添加sio2对DSSCs性能的影响，并对DSSCs的制备工艺进行了优化。研究发现，在P25粉末中加入一定量的sio2对于减少P25粉末的团聚，增强P25粉末的分散性至关重要，这不仅有助于tio2颗粒之间的连接，也有助于tio2颗粒与FTO衬底之间的连接，从而提高电子传递效率。在相同的标准空气质量1.5照度（100mWcm−2）下，由SiO2/P25复合光阳极构建的DSSCs的太阳能-电转换效率（η=8.4%）高于裸P25电极（η=5.8%）。较高的η值主要来自较高的短路光电流密度（Jsc=18.7mAcm−2），而开路电压（Voc）保持不变，为~ 780mV。填充因子（FF）为0.57。二氧化硅能垒层增加了注入电子与氧化染料/氧化还原对的分离，延缓了DSSCs中的重组反应。
The present paper describes a new type of composite photo-anode of SiO2/TiO2that was prepared by adding nano-sized SiO2into the TiO2(P25) paste during the fabrication of dye-sensitized solar cells (DSSCs). The effects of the added SiO2on the performance of DSSCs were investigated and the preparative procedures of DSSCs were optimized. It was found that certain amount of SiO2added in the P25 powder was crucial to reduce the agglomeration and enhance the dispersion of P25 powders, which helps to achieve a better connection and thus higher electron transfer efficiency not only between the TiO2particles but also between the TiO2particles and the FTO substrate. Under the same standard air mass 1.5 illumination (100mWcm−2), the DSSCs constructed by SiO2/P25 composite photo-anodes show higher solar energy-to-electricity conversion efficiency (e.g., η=8.4%) compared to those by bare P25 electrodes (typically η=5.8%). The higher η mainly results from its higher short-circuit photocurrent density (Jsc=18.7mAcm−2) while the open-circuit voltage (Voc) remains unchanged and was found to be ∼780mV. The fill factor (FF) was 0.57. The great enhancement in Jscof DSSCs is ascribed to the SiO2energy barrier layer which increases the separation of injected electrons and oxidized dyes/redox couple as well as retards the recombination reactions in the resulting DSSCs.
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自转变法制备的基于锐钛矿型TiO2空心球的染料敏化太阳能电池
影响因子：
6.6
作者：
Fan, Jiajie;Zhao, Li;Yu, Jiaguo*
通讯作者：
Yu, Jiaguo*
影响因子：
8.6
作者：
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通讯作者：
Zhong‐Sheng Wang;M. Yanagida;K. Sayama;H. Sugihara
影响因子：
5.4
作者：
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通讯作者：
Doohun Kim;Poulomi Roy;Kiyoung Lee;P. Schmuki
DOI：
10.1021/j150555a010
发表时间：
1957-09
期刊：
The Journal of Physical Chemistry
影响因子：
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作者：
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通讯作者：
V. A. Zeitler;C. Brown
影响因子：
3.7
作者：
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通讯作者：
A. Binder;M. Seipenbusch;G. Kasper