Front-side illuminated dye-sensitized solar cells based on bundle shaped titania nanotube membranes

被引：1

作者：

Stergiopoulos, T. ^{[1
]}

Likodimos, V. ^{[1
]}

Hahn, R. ^{[2
]}

Schmuki, P. ^{[2
]}

Falaras, P. ^{[1
]}

机构：

[1] NCSR Demokritos, Inst Phys Chem, Athens, Greece

[2] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, LKO WW4, D-91058 Erlangen, Germany

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2012年 / 209卷 / 01期

关键词：

dye-sensitized solar cells; rapid breakdown anodization; titania nanotubular membranes; TIO2; NANOTUBES; LIGHT-SCATTERING; SOLID-STATE; ARRAYS; EFFICIENCY; PERFORMANCE; OXIDE; RAMAN; FABRICATION; PHOTOANODE;

D O I：

10.1002/pssa.201127143

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2 nanotubular (NT) membranes with bundle shape morphology were prepared by rapid breakdown anodization (RBA) in fluorine free aqueous electrolytes. The self-assembled nanotube-like materials were detached from the metal foil by immersion in methanolic Br-2 solution and the free-standing membranes were successfully transferred on top of transparent conductive electrodes modified by freshly prepared nano-particulate (NP) titania films. The composite electrodes, after post-annealing at 450 degrees C, were crystallized under the anatase polymorphism and, then, effectively sensitized by the standard N719 dye (confirmed by micro-Raman spectroscopy under Resonance conditions). The resulting photoelectrodes were incorporated in dye-sensitized solar cells (DSCs) enabling front-side illumination (FSI). The fabricated DSCs attained overall photovoltaic conversion efficiencies of the order of 4.6% under 1 sun (AM 1.5) illumination. The relatively high performance was mainly attributed to the successful packing of the two (NT and NP) layers creating a low resistance interface as well as to the favourable electron transport/recombination dynamics that govern these solar cells. [GRAPHICS] (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：193 / 198

页数：6