Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells

TiO2 porous electrodes have been fabricated for photoelectrodes in dye-sensitized solar cells (DSCs) using TiO2 screen-printing paste from nanocrystalline TiO2 powder dried from the synthesized sol. We prepared the TiO2 screen-printing paste by two different methods to disperse the nanocrystalline T...

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Main Authors: Seigo Ito, Kaoru Takahashi, Shin-ich Yusa, Takahiro Imamura, Kenji Tanimoto
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2012/405642
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author Seigo Ito
Kaoru Takahashi
Shin-ich Yusa
Takahiro Imamura
Kenji Tanimoto
author_facet Seigo Ito
Kaoru Takahashi
Shin-ich Yusa
Takahiro Imamura
Kenji Tanimoto
author_sort Seigo Ito
collection DOAJ
description TiO2 porous electrodes have been fabricated for photoelectrodes in dye-sensitized solar cells (DSCs) using TiO2 screen-printing paste from nanocrystalline TiO2 powder dried from the synthesized sol. We prepared the TiO2 screen-printing paste by two different methods to disperse the nanocrystalline TiO2 powder: a “ball-milling route” and a “mortal-grinding route.” The TiO2 ball-milling (TiO2-BM) route gave monodisperse TiO2 nanoparticles, resulting in high photocurrent density (14.2 mA cm−2) and high photoconversion efficiency (8.27%). On the other hand, the TiO2 mortal-grinding (TiO2-MG) route gave large aggregate of TiO2 nanoparticles, resulting in low photocurrent density (11.5 mA cm−2) and low photoconversion efficiency (6.43%). To analyze the photovoltaic characteristics, we measured the incident photon-to-current efficiency, light absorption spectroscopy, and electrical impedance spectroscopy of DSCs.
format Article
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institution Kabale University
issn 1110-662X
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language English
publishDate 2012-01-01
publisher Wiley
record_format Article
series International Journal of Photoenergy
spelling doaj-art-d2bdad7956bd43428820b1fb55a335262025-02-03T06:12:38ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/405642405642Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar CellsSeigo Ito0Kaoru Takahashi1Shin-ich Yusa2Takahiro Imamura3Kenji Tanimoto4Department of Electric Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, JapanDepartment of Electric Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, JapanDepartment of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, JapanDepartment of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, JapanSpecialty Materials Research Laboratory, Nissan Chemical Industries, Ltd., 11-1 Kitasode, Sodegaurashi, Chiba 299-0266, JapanTiO2 porous electrodes have been fabricated for photoelectrodes in dye-sensitized solar cells (DSCs) using TiO2 screen-printing paste from nanocrystalline TiO2 powder dried from the synthesized sol. We prepared the TiO2 screen-printing paste by two different methods to disperse the nanocrystalline TiO2 powder: a “ball-milling route” and a “mortal-grinding route.” The TiO2 ball-milling (TiO2-BM) route gave monodisperse TiO2 nanoparticles, resulting in high photocurrent density (14.2 mA cm−2) and high photoconversion efficiency (8.27%). On the other hand, the TiO2 mortal-grinding (TiO2-MG) route gave large aggregate of TiO2 nanoparticles, resulting in low photocurrent density (11.5 mA cm−2) and low photoconversion efficiency (6.43%). To analyze the photovoltaic characteristics, we measured the incident photon-to-current efficiency, light absorption spectroscopy, and electrical impedance spectroscopy of DSCs.http://dx.doi.org/10.1155/2012/405642
spellingShingle Seigo Ito
Kaoru Takahashi
Shin-ich Yusa
Takahiro Imamura
Kenji Tanimoto
Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
International Journal of Photoenergy
title Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
title_full Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
title_fullStr Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
title_full_unstemmed Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
title_short Effects of Homogenization Scheme of TiO2 Screen-Printing Paste for Dye-Sensitized Solar Cells
title_sort effects of homogenization scheme of tio2 screen printing paste for dye sensitized solar cells
url http://dx.doi.org/10.1155/2012/405642
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