Constructed Single-Crystal Rutile TiO2 Cluster and Plasmon Synergistic Effect for Dye-Sensitized Solar Cells
Constructed Single-Crystal Rutile TiO2 Cluster and Plasmon Synergistic Effect for Dye-Sensitized Solar Cells
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构建单晶金红石二氧化钛团簇和等离子体激元协同效应用于染料敏化太阳能电池
DOI：
10.1016/j.electacta.2015.09.004
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发表时间：
2015-10
影响因子：
6.6
通讯作者：
Zhao Xing-Zhong
中科院分区：
文献类型：
--
作者：
Yu Wenjing;Sun Weiwei;Liu Yumin;Mehnane Hadja Fatima;Liu Haimin;Zhang Kun;Cai Bo;Liu Wei;Guo Shishang;Zhao Xing-Zhong
我们展示了一种将等离子体金属纳米粒子结合到由单晶纳米主轴组装的分层金红石tio2簇（RTC）中的方法。RTC可以有效地改善光电子的扩散，这可以归因于通过单晶纳米纺轴桥接邻近微花来改善连通性。但并非所有的纳米纺锤体都紧密相连，因此通过生成tio2纳米颗粒制备了有机胶体，用于基于RTC的器件后处理。当加入金纳米粒子时，可以产生局部电场，因为金可以比入射远场光更强烈地激发染料分子。利用金@有机胶体的紫外-可见吸收光谱和IPCE的相对变化研究了表面等离子体的协同效应。结果表明，基于RTC的电池的总转换效率为7.68%，比商用P25的转换效率（6.58%）提高了17%，这可能归因于单晶纳米纺轴的电子转移速度更快。在RTC中掺入Au纳米粒子后，器件的转换效率达到9.15%，比未掺入Au纳米粒子的有机胶体后处理的RTC器件的转换效率提高了11%(8.24%)，这主要归功于Au纳米粒子的表面等离子体协同作用。
We demonstrate a method for incorporating plasmon metallic nanoparticles in hierarchical rutile TiO2clusters (RTC) assembled from single-crystal nanospindles. The RTC could efficiently improve the diffusion of the photoelectrons, which can be ascribed to the improvement of the connectivity by bridging the neighbouring microflowers through the single-crystal nanospindles. But not all the nanospindles are tightly interconnected, hence organic colloid has been prepared for post-treatment of the device based on RTC by the generation of TiO2nanoparticles. When added into Au nanoparticles, localized electric fields can be produced, because Au can excite dye molecules more intensively than incident far-field light. The surface plasmon synergistic effect had been investigated by Uv-vis absorption spectrum of Au@ organic colloid and the relative change of the IPCE. As a result, the cell based on RTC exhibits an overall conversion efficiency of 7.68%, indicating a 17% promotion compared with that derived from commercial P25 (6.58%) which could be ascribed to faster electron transfer of single-crystal nanospindles. With the Au nanoparticles incorporation in RTC, the device achieves a conversion efficiency of 9.15%, resulting in a 11% increase compared to the RTC device post-treated by organic colloid without Au nanoparticles (8.24%), which is attributed to the surface plasmon synergistic of Au nanoparticles.
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影响因子：
29.4
作者：
Koo, Hyung-Jun;Kim, Yong Joo;Park, Nam-Gyu
通讯作者：
Park, Nam-Gyu
影响因子：
3.7
作者：
Su, Ren;Bechstein, Ralf;Besenbacher, Flemming
通讯作者：
Besenbacher, Flemming
影响因子：
--
作者：
Yoonseok Park;Yong-June Chang;B. Kum;Eui-Hyun Kong;J. Son;Y. Kwon;T. Park;H. Jang
通讯作者：
Yoonseok Park;Yong-June Chang;B. Kum;Eui-Hyun Kong;J. Son;Y. Kwon;T. Park;H. Jang
影响因子：
4.9
作者：
Haimin Zhang;Yanhe Han;Xiaolu Liu;Porun Liu;Hua Yu;Shanqing Zhang;X. Yao;Huijun Zhao
通讯作者：
Haimin Zhang;Yanhe Han;Xiaolu Liu;Porun Liu;Hua Yu;Shanqing Zhang;X. Yao;Huijun Zhao
影响因子：
9.5
作者：
Weiwei Sun;T. Peng;Yumin Liu;Wenjing Yu;Kun Zhang;H. Mehnane;C. Bu;Shishang Guo;Xingzhong Zhao
通讯作者：
Weiwei Sun;T. Peng;Yumin Liu;Wenjing Yu;Kun Zhang;H. Mehnane;C. Bu;Shishang Guo;Xingzhong Zhao