In situ hydrothermal growth of hierarchical ZnO nanourchin for high-efficiency dye-sensitized solar cells
In situ hydrothermal growth of hierarchical ZnO nanourchin for high-efficiency dye-sensitized solar cells
复制标题
用于高效染料敏化太阳能电池的分级ZnO纳米胆的原位水热生长
DOI：
10.1016/j.jpowsour.2013.12.123
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发表时间：
2014-05
影响因子：
9.2
通讯作者：
Jian-Feng Chen
中科院分区：
文献类型：
--
作者：
Yan-Zhen Zheng;Haiyang Ding;Yu Liu;Xia Tao;Guozhong Cao;Jian-Feng Chen
通过结构和形态控制来制备具有高度多功能的一维纳米结构光阳极的能力仍然是提高DSCs最终光电转换效率的关键问题。在这项工作中，我们报道了一种创新的实验设计，即在多尺度的氧化锌(即纳米晶聚集体)种子层上原位水热生长分层氧化锌纳米源作为光阳极，用于高效数字散斑干细胞。研究发现，这种迷人的一维纳米结构可以同时实现单层光电极中通常相互不相容的三个有利特性：大的染料吸附量、强的光散射和直接的电子传输网络，从而导致从光捕获能力到电子收集效率的太阳电池性能的显著提高。结果表明，层次型氧化锌纳米源基DSC的转换效率提高了6.40%，与基于纳米晶聚集体的氧化锌DSC相比，转换效率显著提高了31.1%，也远远高于报道的纯一维氧化锌电池的转换效率。
The ability to fabricate 1D nanotexture photoanodes with a high degree of multifunctionalities by structural and morphological control still represents a vital issue towards boosting the ultimate photoelectric conversion efficiency of DSCs. In this work, we report an innovative experimental design for in-situ hydrothermal growth of hierarchical ZnO nanourchin on multi-scale ZnO (i.e. nanocrystalline aggregate) seeded layer as photoanode for use in high-efficiency DSCs. It is found that this fascinating 1D nanoarchitecture can simultaneously achieve three favorable characteristics which are generally incompatible with one another in a mono-layer photoelectrode: large dye adsorption amount, strong light scattering and direct electron transport networks, hence leading to a significant improvement of solar cell performance ranging from light harvesting capacity to electron collection efficiency. An enhanced conversion efficiency of 6.40% for hierarchical ZnO nanourchin-based DSC is achieved, with a significant efficiency improvement of 31.1% in comparison with ZnO nanocrystalline aggregate-based DSC, and also far higher than reported efficiency of pure 1D ZnO-based cell.
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影响因子：
19
作者：
Zhang, Qifeng;Chou, Tammy P.;Cao, Guozhong
通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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3.8
作者：
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通讯作者：
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影响因子：
5.5
作者：
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通讯作者：
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