Solid State Photoelectrochemical Cells Based on Dye Sensitization

Solid State Photoelectrochemical Cells Based on Dye Sensitization

Research output: Contribution to conference › Paper

Abstract

The initial efficiency of dye sensitized heterojunctions (DSHs) made from n-TiO2, various ruthenium polypyridyl dyes, and p-CuSCN is quite poor. The efficiency increases dramatically when the DSH is exposed to moderate levels of UV illumination. The UV illumination excites electron hole pairs in the TiO2. The hole moves to the surface and oxidizes some species present at the interface. The rateof the UV enhancement is controlled by the light intensity, the potential, and the TiO2 thickness. After sufficient UV illumination the efficiency increase is permanent. Possible mechanisms are discussed.

Original language	American English
Pages	129-136
Number of pages	8
State	Published - 1997
Event	Future Generation Photovoltaic Technologies: First NREL Conference - Denver, Colorado Duration: 22 Mar 1997 → 26 Mar 1997

Conference

Conference	Future Generation Photovoltaic Technologies: First NREL Conference
City	Denver, Colorado
Period	22/03/97 → 26/03/97

Bibliographical note

Work performed by University of Washington, Seattle, Washington

NREL Publication Number

NREL/CP-520-24467

Cite this

@conference{eb583bd411fb4b08b171f23a31e40b11,

title = "Solid State Photoelectrochemical Cells Based on Dye Sensitization",

abstract = "The initial efficiency of dye sensitized heterojunctions (DSHs) made from n-TiO2, various ruthenium polypyridyl dyes, and p-CuSCN is quite poor. The efficiency increases dramatically when the DSH is exposed to moderate levels of UV illumination. The UV illumination excites electron hole pairs in the TiO2. The hole moves to the surface and oxidizes some species present at the interface. The rateof the UV enhancement is controlled by the light intensity, the potential, and the TiO2 thickness. After sufficient UV illumination the efficiency increase is permanent. Possible mechanisms are discussed.",

author = "NREL",

note = "Work performed by University of Washington, Seattle, Washington; Future Generation Photovoltaic Technologies: First NREL Conference ; Conference date: 22-03-1997 Through 26-03-1997",

year = "1997",

language = "American English",

pages = "129--136",

}

TY - CONF

T1 - Solid State Photoelectrochemical Cells Based on Dye Sensitization

AU - NREL, null

N1 - Work performed by University of Washington, Seattle, Washington

PY - 1997

Y1 - 1997

N2 - The initial efficiency of dye sensitized heterojunctions (DSHs) made from n-TiO2, various ruthenium polypyridyl dyes, and p-CuSCN is quite poor. The efficiency increases dramatically when the DSH is exposed to moderate levels of UV illumination. The UV illumination excites electron hole pairs in the TiO2. The hole moves to the surface and oxidizes some species present at the interface. The rateof the UV enhancement is controlled by the light intensity, the potential, and the TiO2 thickness. After sufficient UV illumination the efficiency increase is permanent. Possible mechanisms are discussed.

AB - The initial efficiency of dye sensitized heterojunctions (DSHs) made from n-TiO2, various ruthenium polypyridyl dyes, and p-CuSCN is quite poor. The efficiency increases dramatically when the DSH is exposed to moderate levels of UV illumination. The UV illumination excites electron hole pairs in the TiO2. The hole moves to the surface and oxidizes some species present at the interface. The rateof the UV enhancement is controlled by the light intensity, the potential, and the TiO2 thickness. After sufficient UV illumination the efficiency increase is permanent. Possible mechanisms are discussed.

M3 - Paper

SP - 129

EP - 136

T2 - Future Generation Photovoltaic Technologies: First NREL Conference

Y2 - 22 March 1997 through 26 March 1997

ER -

Solid State Photoelectrochemical Cells Based on Dye Sensitization

Abstract

Conference

Bibliographical note

NREL Publication Number

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Cite this