Facile preparation of large aspect ratio ellipsoidal anatase TiO2 nanoparticles and their application to dye-sensitized solar cell

被引:70
作者
Baek, In Chan [1 ,3 ]
Vithal, Muga [1 ]
Chang, Jeong Ah [1 ]
Yum, Jun-Ho [2 ]
Nazeeruddin, Md K. [2 ]
Graetzel, Michael [2 ]
Chung, Yong-Chae [3 ]
Seok, Sang Il [1 ]
机构
[1] Korea Res Inst Chem Technol, Adv Mat Div, EPFL, Global Res Lab, Taejon 305600, South Korea
[2] Swiss Fed Inst Technol, Sch Basic Sci, Inst Chem Sci & Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
[3] Hanyang Univ, Dept Mat & Sci Engn, Seoul 133791, South Korea
关键词
TiO2; nanorods; Ellipsoidal anatase; Peroxotitanate complex; Dye-sensitized solar cell; TITANIUM-DIOXIDE; RUTILE TIO2; NANOCRYSTALS; GROWTH; INSIGHTS; NANOTUBE; ARRAYS; PHASE; SHAPE; FILM;
D O I
10.1016/j.elecom.2009.02.026
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A simple one-step heat-treatment of peroxotitanate complex aqueous solution at around 100 degrees C was resulted in the formation of ellipsoidal anatase TiO2 nanoparticles having a high aspect ratio with no branches. The length of these ellipsoidal TiO2 falls in the range of 200-350 nm, depending on mole ratio of Ti4+/H2O2. Dye-sensitized solar cell based on these ellipsoidal nanocrystalline TiO2 as photoanode was fabricated and characterized. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:909 / 912
页数:4
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