Journal ArticleDOI
Three-dimensional electrodes for dye-sensitized solar cells: synthesis of indium-tin-oxide nanowire arrays and ITO/TiO2 core-shell nanowire arrays by electrophoretic deposition.
Hong Wen Wang,Chi Feng Ting,Miao Ken Hung,Chwei Huann Chiou,Ying-Ling Liu,Zongwen Liu,Kyle R. Ratinac,Simon P. Ringer +7 more
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TLDR
It is demonstrated that arrays of nanowires can be formed by wet-chemical methods for use as three-dimensional (3D) electrodes in DSSCs, thereby improving photoelectric conversion efficiency.Abstract:
Dye-sensitized solar cells (DSSCs) show promise as a cheaper alternative to silicon-based photovoltaics for specialized applications, provided conversion efficiency can be maximized and production costs minimized. This study demonstrates that arrays of nanowires can be formed by wet-chemical methods for use as three-dimensional (3D) electrodes in DSSCs, thereby improving photoelectric conversion efficiency. Two approaches were employed to create the arrays of ITO (indium–tin-oxide) nanowires or arrays of ITO/TiO2 core–shell nanowires; both methods were based on electrophoretic deposition (EPD) within a polycarbonate template. The 3D electrodes for solar cells were constructed by using a doctor-blade for coating TiO2 layers onto the ITO or ITO/TiO2 nanowire arrays. A photoelectric conversion efficiency as high as 4.3% was achieved in the DSSCs made from ITO nanowires; this performance was better than that of ITO/TiO2 core–shell nanowires or pristine TiO2 films. Cyclic voltammetry confirmed that the reaction current was significantly enhanced when a 3D ITO-nanowire electrode was used. Better separation of charge carriers and improved charge transport, due to the enlarged interfacial area, are thought to be the major advantages of using 3D nanowire electrodes for the optimization of DSSCs.read more
Citations
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Journal ArticleDOI
High-Quality Metal Oxide Core/Shell Nanowire Arrays on Conductive Substrates for Electrochemical Energy Storage
TL;DR: The growth approach offers a new technique for the design and synthesis of transition metal oxide or hydroxide hierarchical nanoarrays that are promising for electrochemical energy storage, catalysis, and gas sensing applications.
Journal ArticleDOI
Beyond Photovoltaics: Semiconductor Nanoarchitectures for Liquid-Junction Solar Cells
TL;DR: One-Dimensional (1-D) Transport Architectures 6675 4.2.1.
Journal ArticleDOI
Solution-derived 40 µm vertically aligned ZnO nanowire arrays as photoelectrodes in dye-sensitized solar cells
Jijun Qiu,Jijun Qiu,Xiaomin Li,Fuwei Zhuge,Xiaoyan Gan,Xiangdong Gao,Weizhen He,Se-Jeong Park,Hyung Kook Kim,Yoon-Hwae Hwang +9 more
TL;DR: The performance of dye-sensitized solar cells (DSSCs) increased with increasing length of ZnO nanowire arrays, which was mainly ascribed to the aggrandized photocurrent and reduced recombination loss according to electrochemical impedance spectroscopy (EIS).
Journal ArticleDOI
In situ fabrication of inorganic nanowire arrays grown from and aligned on metal substrates.
Weixin Zhang,Shihe Yang +1 more
TL;DR: The recent work on growing inorganic nanowires directly from and on metal substrates in arrays without using templates and catalysts is reviewed, with predictions that they will be extended to more inorganic materials, such as metal halides.
Journal ArticleDOI
Indium tin oxide nanopillar electrodes in polymer/fullerene solar cells
David A. Rider,David A. Rider,David A. Rider,Ryan T. Tucker,Ryan T. Tucker,Brian J. Worfolk,Brian J. Worfolk,Kathleen M. Krause,Kathleen M. Krause,Abeed Lalany,Abeed Lalany,Michael J. Brett,Michael J. Brett,Jillian M. Buriak,Jillian M. Buriak,Kenneth D. Harris +15 more
TL;DR: Indium tin oxide (ITO) and hybrid ITO/SiO(2) nanopillars are employed as three-dimensional high surface area transparent electrodes in OPVs and operate with improved performance relative to devices processed identically on unstructured, commercial ITO substrates.
References
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Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal ArticleDOI
Nanowire dye-sensitized solar cells
Matt Law,Lori E. Greene,Lori E. Greene,Justin C. Johnson,Richard J. Saykally,Peidong Yang,Peidong Yang +6 more
TL;DR: This work introduces a version of the dye-sensitized cell in which the traditional nanoparticle film is replaced by a dense array of oriented, crystalline ZnO nanowires, which features a surface area up to one-fifth as large as a nanoparticle cell.
Book
Dye-sensitized Solar Cells
TL;DR: The dye-sensitized solar cells (DSC) as discussed by the authors provides a technically and economically credible alternative concept to present day p-n junction photovoltaic devices, where light is absorbed by a sensitizer, which is anchored to the surface of a wide band semiconductor.
Journal ArticleDOI
Conversion of sunlight to electric power by nanocrystalline dye-sensitized solar cells
TL;DR: The dye-sensitized solar cell (DSC) as mentioned in this paper provides a technically and economically credible alternative concept to present day p-n junction photovoltaic devices, where light is absorbed by a sensitizer, which is anchored to the surface of a wide band gap oxide semiconductor.
Journal ArticleDOI
Enhanced Charge-Collection Efficiencies and Light Scattering in Dye-Sensitized Solar Cells Using Oriented TiO2 Nanotubes Arrays
TL;DR: Analysis of photocurrent measurements indicates that the light-harvesting efficiencies of NT-based DSSCs were higher than those found for D SSCs incorporating NPs owing to stronger internal light-scattering effects.