TiO2 hollow spheres as effective additives in oligomer electrolytes for dye-sensitized solar cells

Jong Hyuk Park; Sun Young Jung; A. Rim Yu; Sang Soo Lee

doi:10.1016/j.matlet.2011.04.096

TiO₂ hollow spheres as effective additives in oligomer electrolytes for dye-sensitized solar cells

Jong Hyuk Park, Sun Young Jung, A. Rim Yu, Sang Soo Lee

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

TiO₂ hollow spheres are employed as an additive of oligomer electrolytes for dye-sensitized solar cells (DSSCs). The measurement of steady-state currents confirms that introducing TiO₂ hollow spheres can facilitate ionic diffusion in oligomer electrolytes. Even compared with conventional nanoparticle additives, the hollow spheres are more favorable to increase the diffusion coefficients of I^- and I₃ ^- in oligomer electrolytes. Furthermore, the hollow structure with a submicron size is effective to scatter incident light and thereby enhance the light-harvesting efficiency of DSSCs. The energy-conversion efficiency of the DSSCs with TiO₂ hollow sphere additives significantly improves up to 7.22% due to the facilitated ionic diffusion and the enhanced light-harvesting efficiency.

Original language	English
Pages (from-to)	2506-2509
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	15-16
DOIs	https://doi.org/10.1016/j.matlet.2011.04.096
Publication status	Published - 2011 Aug

Keywords

Dye-sensitized solar cell
Hollow sphere
Oligomer electrolyte
TiO additive

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2011.04.096

Cite this

@article{d29ce1005a2f4fdeb76594692e3a29ed,

title = "TiO2 hollow spheres as effective additives in oligomer electrolytes for dye-sensitized solar cells",

abstract = "TiO2 hollow spheres are employed as an additive of oligomer electrolytes for dye-sensitized solar cells (DSSCs). The measurement of steady-state currents confirms that introducing TiO2 hollow spheres can facilitate ionic diffusion in oligomer electrolytes. Even compared with conventional nanoparticle additives, the hollow spheres are more favorable to increase the diffusion coefficients of I- and I3 - in oligomer electrolytes. Furthermore, the hollow structure with a submicron size is effective to scatter incident light and thereby enhance the light-harvesting efficiency of DSSCs. The energy-conversion efficiency of the DSSCs with TiO2 hollow sphere additives significantly improves up to 7.22% due to the facilitated ionic diffusion and the enhanced light-harvesting efficiency.",

keywords = "Dye-sensitized solar cell, Hollow sphere, Oligomer electrolyte, TiO additive",

author = "Park, {Jong Hyuk} and Jung, {Sun Young} and Yu, {A. Rim} and Lee, {Sang Soo}",

note = "Funding Information: This work was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Korea . ",

year = "2011",

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doi = "10.1016/j.matlet.2011.04.096",

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volume = "65",

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journal = "Materials Letters",

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TY - JOUR

T1 - TiO2 hollow spheres as effective additives in oligomer electrolytes for dye-sensitized solar cells

AU - Park, Jong Hyuk

AU - Jung, Sun Young

AU - Yu, A. Rim

AU - Lee, Sang Soo

N1 - Funding Information: This work was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Korea .

PY - 2011/8

Y1 - 2011/8

N2 - TiO2 hollow spheres are employed as an additive of oligomer electrolytes for dye-sensitized solar cells (DSSCs). The measurement of steady-state currents confirms that introducing TiO2 hollow spheres can facilitate ionic diffusion in oligomer electrolytes. Even compared with conventional nanoparticle additives, the hollow spheres are more favorable to increase the diffusion coefficients of I- and I3 - in oligomer electrolytes. Furthermore, the hollow structure with a submicron size is effective to scatter incident light and thereby enhance the light-harvesting efficiency of DSSCs. The energy-conversion efficiency of the DSSCs with TiO2 hollow sphere additives significantly improves up to 7.22% due to the facilitated ionic diffusion and the enhanced light-harvesting efficiency.

AB - TiO2 hollow spheres are employed as an additive of oligomer electrolytes for dye-sensitized solar cells (DSSCs). The measurement of steady-state currents confirms that introducing TiO2 hollow spheres can facilitate ionic diffusion in oligomer electrolytes. Even compared with conventional nanoparticle additives, the hollow spheres are more favorable to increase the diffusion coefficients of I- and I3 - in oligomer electrolytes. Furthermore, the hollow structure with a submicron size is effective to scatter incident light and thereby enhance the light-harvesting efficiency of DSSCs. The energy-conversion efficiency of the DSSCs with TiO2 hollow sphere additives significantly improves up to 7.22% due to the facilitated ionic diffusion and the enhanced light-harvesting efficiency.

KW - Dye-sensitized solar cell

KW - Hollow sphere

KW - Oligomer electrolyte

KW - TiO additive

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