Excited state properties of anodic TiO2 nanotubes

作者: Axel Kahnt , Christian Oelsner , Fabian Werner , Dirk M Guldi , Sergiu P Albu

DOI: 10.1063/1.4810762

关键词: Carrier lifetimeBallistic conduction in single-walled carbon nanotubesElectronAtomic physicsExcited stateMaterials scienceNanoparticleOptical properties of carbon nanotubesTime-resolved spectroscopyCharge carrier

摘要: Charge carriers, that is, holes as well trapped and “free” electrons were investigated by means of time resolved spectroscopy in anodic TiO2 nanotubes heat treated at different temperatures. The lifetimes the charge carrier compared with those generated reference layers Solaronix Ti-Nanoxide D Degussa P25 nanoparticles. Remarkably long lived only noted nanotubes. These findings have significance view any photoelectrochemical applications

参考文章(48)
Benjamin M. Klahr, Thomas W. Hamann, Performance Enhancement and Limitations of Cobalt Bipyridyl Redox Shuttles in Dye-Sensitized Solar Cells Journal of Physical Chemistry C. ,vol. 113, pp. 14040- 14045 ,(2009) , 10.1021/JP903431S
Maggie Paulose, Karthik Shankar, Oomman K Varghese, Gopal K Mor, Craig A Grimes, Application of highly-ordered TiO2 nanotube-arrays in heterojunction dye-sensitized solar cells Journal of Physics D. ,vol. 39, pp. 2498- 2503 ,(2006) , 10.1088/0022-3727/39/12/005
S. Nakade, M. Matsuda, S. Kambe, Y. Saito, T. Kitamura, T. Sakata, Y. Wada, H. Mori, S. Yanagida, Dependence of TiO2 Nanoparticle Preparation Methods and Annealing Temperature on the Efficiency of Dye-Sensitized Solar Cells Journal of Physical Chemistry B. ,vol. 106, pp. 10004- 10010 ,(2002) , 10.1021/JP020051D
Tae Hee Han, Hyoung-Seok Moon, Jin Ok Hwang, Sang Il Seok, Sang Hyuk Im, Sang Ouk Kim, Peptide-templating dye-sensitized solar cells. Nanotechnology. ,vol. 21, pp. 185601- 185601 ,(2010) , 10.1088/0957-4484/21/18/185601
Kayano Sunada, Yoshihiko Kikuchi, Kazuhito Hashimoto, Akira Fujishima, Bactericidal and Detoxification Effects of TiO2 Thin Film Photocatalysts Environmental Science & Technology. ,vol. 32, pp. 726- 728 ,(1998) , 10.1021/ES970860O
Bin Li, Liduo Wang, Bonan Kang, Peng Wang, Yong Qiu, Review of recent progress in solid-state dye-sensitized solar cells Solar Energy Materials and Solar Cells. ,vol. 90, pp. 549- 573 ,(2006) , 10.1016/J.SOLMAT.2005.04.039
Poulomi Roy, Sergiu P. Albu, Patrik Schmuki, TiO2 nanotubes in dye-sensitized solar cells: Higher efficiencies by well-defined tube tops Electrochemistry Communications. ,vol. 12, pp. 949- 951 ,(2010) , 10.1016/J.ELECOM.2010.04.029
Brian O'Regan, Michael Grätzel, A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films Nature. ,vol. 353, pp. 737- 740 ,(1991) , 10.1038/353737A0