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Dye-sensitized Sola...
Dye-sensitized Solar Cells Employing a SnO2-TiO2 Core-shell Structure Made by Atomic Layer Deposition
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- Karlsson, Martin (author)
- Uppsala universitet,Fysikalisk kemi
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- Jogi, Indrek (author)
- Uppsala universitet,Institutionen för kemi - Ångström
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- Eriksson, Susanna K. (author)
- Uppsala universitet,Fysikalisk kemi
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- Rensmo, Håkan (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Boman, Mats (author)
- Uppsala universitet,Oorganisk kemi
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- Boschloo, Gerrit (author)
- Uppsala universitet,Fysikalisk kemi
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- Hagfeldt, Anders (author)
- Uppsala universitet,Fysikalisk kemi
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(creator_code:org_t)
- 2013-03-27
- 2013
- English.
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In: CHIMIA. - : Swiss Chemical Society. - 0009-4293 .- 2673-2424. ; 67:3, s. 142-148
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https://chimia.ch/ch...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Subject headings
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- This paper describes the synthesis and characterization of core-shell structures, based on SnO2 and TiO2, for use in dye-sensitized solar cells (DSc). Atomic layer deposition is employed to control and vary the thickness of the TiO2 shell. Increasing the TiO2 shell thickness to 2 nm improved the device performance of liquid electrolyte-based DSC from 0.7% to 3.5%. The increase in efficiency originates from a higher open-circuit potential and a higher short-circuit current, as well as from an improvement in the electron. lifetime. SnO2-TiO2 core-shell DSC devices retain their photovoltage in darkness for longer than 500 seconds, demonstrating that the electrons are contained in the core material. Finally core-shell structures were used for solid-state DSC applications using the hole transporting material 2,2',7,7',-tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9',-spirofluorene. Similar improvements in device performance were obtained for solid-state DSC devices.
Keyword
- Core-shell
- Dye-sensitized solar cell
- Electron lifetime
- Photo-capacitor
- Spiro-OMeTAD
Publication and Content Type
- ref (subject category)
- art (subject category)
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