Rutile TiO2-modified multi-wall carbon nanotubes in TiO2 film electrodes for dye-sensitized solar cells
Rutile TiO2-modified multi-wall carbon nanotubes in TiO2 film electrodes for dye-sensitized solar cells
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DOI：
10.1007/s10800-006-9238-4
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发表时间：
2006-10
影响因子：
2.9
通讯作者：
Sun Lae Kim;Song-Rim Jang;R. Vittal;Ji-won Lee;Kang‐Jin Kim
中科院分区：
文献类型：
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作者：
Sun Lae Kim;Song-Rim Jang;R. Vittal;Ji-won Lee;Kang‐Jin Kim
研究了酸处理和金红石型TiO 2（r-TiO 2）修饰的多壁碳纳米管（MWNTs）对染料敏化太阳能电池（DSSCs）光电流-电压特性的有益影响。采用两种不同的路线对酸处理的MWNTs（a-MWNTs）进行r-TiO 2改性。利用电子显微镜、X射线能谱、X射线衍射和拉曼光谱对薄膜和碳纳米管进行了表征。在掺入r-TiO 2修饰的a-MWNTs的情况下，相关DSSC的短路光电流（Jsc）比裸TiO 2膜的电池增加了35%。开路电压在所有情况下几乎保持不变。增强的Jsc是通过增加的膜的表面积，增强的a-MWNTs周围的TiO 2颗粒的簇形成，并在a-MWNTs的存在下改善TiO 2颗粒的互连性来解释的。
The beneficial influence of incorporation of acid-treated and rutile TiO2(r-TiO2)-modified multi-wall carbon nanotubes (MWNTs) in TiO2films on photocurrent–voltage characteristics of dye-sensitized solar cells (DSSCs) was studied. Two different routes were adopted for the modification of acid-treated MWNTs (a-MWNTs) with r-TiO2. The films and MWNTs were characterized by electron microscopy, energy dispersive X-ray spectroscopy, XRD and Raman spectroscopy. In the case of incorporation of a-MWNTs with r-TiO2modification, short-circuit photocurrent (Jsc) of the pertinent DSSC increased by 35% compared with that of a cell with bare TiO2film. The open-circuit voltage remained almost the same for all cases. The enhancedJscis explained by the increased surface area of the film, enhanced cluster formation of TiO2particles around a-MWNTs, and improved interconnectivity of TiO2particles in the presence of a-MWNTs.