Ultrafast proton-assisted tunneling through ZrO2 in dye-sensitized SnO2-core/ZrO2-shell films

John R. Swierk; Nicholas S. McCool; Jason A. Röhr; Svante Hedström; Steven J. Konezny; Coleen T. Nemes; Pengtao Xu; Victor S. Batista; Thomas E. Mallouk; Charles A. Schmuttenmaer

doi:10.1039/c8cc04189j

Ultrafast proton-assisted tunneling through ZrO₂ in dye-sensitized SnO₂-core/ZrO₂-shell films

John R. Swierk
, Nicholas S. McCool
, Jason A. Röhr
, Svante Hedström
, Steven J. Konezny
, Coleen T. Nemes
, Pengtao Xu
, Victor S. Batista
, Thomas E. Mallouk
, Charles A. Schmuttenmaer

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

4 Scopus citations

Abstract

Core-shell architectures are used to modulate injection and recombination in dye-sensitized photoelectrochemical cells. Here, we demonstrate that exposing SnO₂-core/ZrO₂-shell films to acid permits photoinduced electron transfer through ZrO₂-shells at least 4 nm thick. A novel mechanism of charge transfer is proposed where protonic defects permit ultrafast trap-assisted tunneling of electrons.

Original language	English (US)
Pages (from-to)	7971-7974
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	57
DOIs	https://doi.org/10.1039/c8cc04189j
State	Published - 2018

All Science Journal Classification (ASJC) codes

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/c8cc04189j

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@article{ed82fe000803455e9aaba40a64e0225e,

title = "Ultrafast proton-assisted tunneling through ZrO2 in dye-sensitized SnO2-core/ZrO2-shell films",

abstract = "Core-shell architectures are used to modulate injection and recombination in dye-sensitized photoelectrochemical cells. Here, we demonstrate that exposing SnO2-core/ZrO2-shell films to acid permits photoinduced electron transfer through ZrO2-shells at least 4 nm thick. A novel mechanism of charge transfer is proposed where protonic defects permit ultrafast trap-assisted tunneling of electrons.",

author = "Swierk, \{John R.\} and McCool, \{Nicholas S.\} and R{\"o}hr, \{Jason A.\} and Svante Hedstr{\"o}m and Konezny, \{Steven J.\} and Nemes, \{Coleen T.\} and Pengtao Xu and Batista, \{Victor S.\} and Mallouk, \{Thomas E.\} and Schmuttenmaer, \{Charles A.\}",

note = "Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

doi = "10.1039/c8cc04189j",

language = "English (US)",

volume = "54",

pages = "7971--7974",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "57",

}

TY - JOUR

T1 - Ultrafast proton-assisted tunneling through ZrO2 in dye-sensitized SnO2-core/ZrO2-shell films

AU - Swierk, John R.

AU - McCool, Nicholas S.

AU - Röhr, Jason A.

AU - Hedström, Svante

AU - Konezny, Steven J.

AU - Nemes, Coleen T.

AU - Xu, Pengtao

AU - Batista, Victor S.

AU - Mallouk, Thomas E.

AU - Schmuttenmaer, Charles A.

PY - 2018

Y1 - 2018

N2 - Core-shell architectures are used to modulate injection and recombination in dye-sensitized photoelectrochemical cells. Here, we demonstrate that exposing SnO2-core/ZrO2-shell films to acid permits photoinduced electron transfer through ZrO2-shells at least 4 nm thick. A novel mechanism of charge transfer is proposed where protonic defects permit ultrafast trap-assisted tunneling of electrons.

AB - Core-shell architectures are used to modulate injection and recombination in dye-sensitized photoelectrochemical cells. Here, we demonstrate that exposing SnO2-core/ZrO2-shell films to acid permits photoinduced electron transfer through ZrO2-shells at least 4 nm thick. A novel mechanism of charge transfer is proposed where protonic defects permit ultrafast trap-assisted tunneling of electrons.

UR - https://www.scopus.com/pages/publications/85049863585

UR - https://www.scopus.com/pages/publications/85049863585#tab=citedBy

U2 - 10.1039/c8cc04189j

DO - 10.1039/c8cc04189j

M3 - Article

AN - SCOPUS:85049863585

SN - 1359-7345

VL - 54

SP - 7971

EP - 7974

JO - Chemical Communications

JF - Chemical Communications

IS - 57

ER -

Ultrafast proton-assisted tunneling through ZrO₂ in dye-sensitized SnO₂-core/ZrO₂-shell films

Abstract

All Science Journal Classification (ASJC) codes

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