Suppression of charge recombination rate in nanocrystalline SnO2 by thin coatings of divalent oxides in dye-sensitized solar cells

Chaehyeon Lee; Gi Won Lee; Weekyung Kang; Doh Kwon Lee; Min Jae Ko; Kyoungkon Kim; Nam Gyu Park

doi:10.5012/bkcs.2010.31.11.3093

Suppression of charge recombination rate in nanocrystalline SnO₂ by thin coatings of divalent oxides in dye-sensitized solar cells

Chaehyeon Lee
, Gi Won Lee
, Weekyung Kang
, Doh Kwon Lee
, Min Jae Ko
, Kyoungkon Kim
, Nam Gyu Park

Department of Chemical Engineering

Korea Institute of Science and Technology
Soongsil University

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

15 Scopus citations

Abstract

The core-shell SnO₂@AO (A = Ni, Cu, Zn and Mg) films were prepared and the effects of coatings on photovoltaic properties were investigated. Studies on X-ray photoelectron spectroscopy, energy dispersive X-ray analysis and transmission electron microscopy showed the formation of divalent oxides on the surface of SnO₂ nanoparticles. It was commonly observed that all the dye-sensitized core-shell films exhibited higher photovoltage than the bare SnO₂ film. Transient photovoltage measurements confirmed that the improved photovoltages were related to the decreased time constants for electron recombination.

Original language	English
Pages (from-to)	3093-3098
Number of pages	6
Journal	Bulletin of the Korean Chemical Society
Volume	31
Issue number	11
DOIs	https://doi.org/10.5012/bkcs.2010.31.11.3093
State	Published - 20 Nov 2010

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Charge recombination
Core-shell
Dye-sensitized solar cell
Nanocrystalline SnO
Surface coating

Access to Document

10.5012/bkcs.2010.31.11.3093

Cite this

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title = "Suppression of charge recombination rate in nanocrystalline SnO2 by thin coatings of divalent oxides in dye-sensitized solar cells",

abstract = "The core-shell SnO2@AO (A = Ni, Cu, Zn and Mg) films were prepared and the effects of coatings on photovoltaic properties were investigated. Studies on X-ray photoelectron spectroscopy, energy dispersive X-ray analysis and transmission electron microscopy showed the formation of divalent oxides on the surface of SnO2 nanoparticles. It was commonly observed that all the dye-sensitized core-shell films exhibited higher photovoltage than the bare SnO2 film. Transient photovoltage measurements confirmed that the improved photovoltages were related to the decreased time constants for electron recombination.",

keywords = "Charge recombination, Core-shell, Dye-sensitized solar cell, Nanocrystalline SnO, Surface coating",

author = "Chaehyeon Lee and Lee, \{Gi Won\} and Weekyung Kang and Lee, \{Doh Kwon\} and Ko, \{Min Jae\} and Kyoungkon Kim and Park, \{Nam Gyu\}",

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T1 - Suppression of charge recombination rate in nanocrystalline SnO2 by thin coatings of divalent oxides in dye-sensitized solar cells

AU - Lee, Chaehyeon

AU - Lee, Gi Won

AU - Kang, Weekyung

AU - Lee, Doh Kwon

AU - Ko, Min Jae

AU - Kim, Kyoungkon

AU - Park, Nam Gyu

PY - 2010/11/20

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AB - The core-shell SnO2@AO (A = Ni, Cu, Zn and Mg) films were prepared and the effects of coatings on photovoltaic properties were investigated. Studies on X-ray photoelectron spectroscopy, energy dispersive X-ray analysis and transmission electron microscopy showed the formation of divalent oxides on the surface of SnO2 nanoparticles. It was commonly observed that all the dye-sensitized core-shell films exhibited higher photovoltage than the bare SnO2 film. Transient photovoltage measurements confirmed that the improved photovoltages were related to the decreased time constants for electron recombination.

KW - Charge recombination

KW - Core-shell

KW - Dye-sensitized solar cell

KW - Nanocrystalline SnO

KW - Surface coating

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