Block Copolymer Morphologies in Dye-Sensitized Solar Cells: Probing the Photovoltaic Structure-Function Relation

被引:144
作者
Crossland, Edward J. W. [1 ,2 ,6 ]
Nedelcu, Mihaela [1 ,2 ]
Ducati, Caterina [3 ]
Ludwigs, Sabine [1 ,2 ]
Hillmyer, Marc A. [4 ]
Steiner, Ullrich [1 ,2 ]
Snaith, Henry J. [5 ]
机构
[1] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB3 OHE, England
[2] Univ Cambridge, Nanosci Ctr, Cambridge CB3 OFF, England
[3] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
[4] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA
[5] Univ Oxford, Dept Phys, Oxford OX1 3PU, England
[6] Univ Frieburg, Frieburg Inst Adv Studies FRIAS, Freiburg, Germany
基金
英国工程与自然科学研究理事会; 美国国家科学基金会;
关键词
TIO2 NANOTUBE ARRAYS; NANOPOROUS POLYMERS; NANOWIRE ARRAYS; RECOMBINATION; TRANSPORT; ELECTRODES; TEMPLATES;
D O I
10.1021/nl800942c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We integrate mesostructured titania arrays into dye-sensitized solar cells by replicating ordered, oriented one-dimensional (1D) columnar and three-dimensional (3D) bicontinuous gyroid block copolymer phases. The solar cell performance, charge transport, and recombination are Investigated. We observe faster charge transport in 1D "wires" than through 3D gyroid arrays. However, owing to their structural instability, the surface area of the wire arrays is low, inhibiting the solar cell performance. The gyroid morphology, on the other hand, outperforms the current state-of-the-art mesoporous nanoparticle films.
引用
收藏
页码:2813 / 2819
页数:7
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