Next Article in Journal
Unraveling the Origin of Magnetism in Mesoporous Cu-Doped SnO2 Magnetic Semiconductors
Previous Article in Journal
Ti-Based Biomedical Material Modified with TiOx/TiNx Duplex Bioactivity Film via Micro-Arc Oxidation and Nitrogen Ion Implantation
Previous Article in Special Issue
Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries
Article

Enhanced Efficiency in Dye-Sensitized Solar Cells by Electron Transport and Light Scattering on Freestanding TiO2 Nanotube Arrays

1
Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Korea
2
Department of Chemistry, Seoul National University, Seoul 151-747, Korea
*
Author to whom correspondence should be addressed.
Nanomaterials 2017, 7(10), 345; https://doi.org/10.3390/nano7100345
Received: 14 September 2017 / Revised: 18 October 2017 / Accepted: 19 October 2017 / Published: 24 October 2017
(This article belongs to the Special Issue New Developments in Nanomaterials for Energy Storage and Conversions)
Dye-sensitized solar cells (DSSCs) were fabricated with closed- or open-ended freestanding TiO2 nanotube arrays as photoelectrodes that were decorated with carbon materials and large TiO2 nanoparticles (NPs) to enhance energy conversion efficiency. The energy conversion efficiency of DSSCs based on open-ended freestanding TiO2 nanotube arrays increased from 4.47% to 5.39%, compared to the DSSCs based on closed-ended freestanding TiO2 nanotube arrays. In DSSCs based on the open-ended freestanding TiO2 nanotube arrays, the energy conversion efficiency with carbon materials increased from 5.39% to 6.19% due to better electron transport, and that with a scattering layer from 5.39% to 6.24% due to more light harvesting compared to the DSSCs without carbon materials or scattering layer. Moreover, the energy conversion efficiency of DSSCs based on the open-ended freestanding TiO2 nanotube arrays with both carbon materials and scattering layer increased from 5.39% to 6.98%, which is an enhancement of 29.50%. In DSSCs based on the TiO2 nanotube arrays, the carbon materials can improve electron transport by π-π conjugation, and the large TiO2 NPs can enhance the capacity to light-harvest by scattering. View Full-Text
Keywords: dye-sensitized solar cell; TiO2 nanotube arrays; carbon materials; scattering layer dye-sensitized solar cell; TiO2 nanotube arrays; carbon materials; scattering layer
Show Figures

Graphical abstract

MDPI and ACS Style

Rho, W.-Y.; Song, D.H.; Lee, S.H.; Jun, B.-H. Enhanced Efficiency in Dye-Sensitized Solar Cells by Electron Transport and Light Scattering on Freestanding TiO2 Nanotube Arrays. Nanomaterials 2017, 7, 345. https://doi.org/10.3390/nano7100345

AMA Style

Rho W-Y, Song DH, Lee SH, Jun B-H. Enhanced Efficiency in Dye-Sensitized Solar Cells by Electron Transport and Light Scattering on Freestanding TiO2 Nanotube Arrays. Nanomaterials. 2017; 7(10):345. https://doi.org/10.3390/nano7100345

Chicago/Turabian Style

Rho, Won-Yeop, Da H. Song, Sang H. Lee, and Bong-Hyun Jun. 2017. "Enhanced Efficiency in Dye-Sensitized Solar Cells by Electron Transport and Light Scattering on Freestanding TiO2 Nanotube Arrays" Nanomaterials 7, no. 10: 345. https://doi.org/10.3390/nano7100345

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop