First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte

First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte

NREL

Chemistry and Nanoscience

Research output: Contribution to conference › Paper

Abstract

The composition of the electrolyte is known to greatly influence the performance of dye-sensitized solar cells. It has been speculated that some components of the electrolyte passivate the TiO2 surface against recombination; however, this has never been confirmed experimentally. We hereby present the first case of passivation of the TiO2 surface against recombination by an additive in theelectrolyte. Even though the additive also causes a downward movement of the TiO2 bands, suppression of recombination prevails and an overall improvement in open-circuit photovoltage is observed. This work was conducted in collaboration with the DOE Office of Science program.

Original language	American English
Number of pages	5
State	Published - 2005
Event	2004 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado Duration: 25 Oct 2004 → 28 Oct 2004

Conference

Conference	2004 DOE Solar Energy Technologies Program Review Meeting
City	Denver, Colorado
Period	25/10/04 → 28/10/04

Bibliographical note

Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)

NLR Publication Number

NREL/CP-520-37055

Keywords

dye-sensitized
electrolytes
nanocrystalline
open-circuit voltages
photoelectrochemical cells
photoinduced charge density
PV
short circuit current (ISC)

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title = "First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte",

abstract = "The composition of the electrolyte is known to greatly influence the performance of dye-sensitized solar cells. It has been speculated that some components of the electrolyte passivate the TiO2 surface against recombination; however, this has never been confirmed experimentally. We hereby present the first case of passivation of the TiO2 surface against recombination by an additive in theelectrolyte. Even though the additive also causes a downward movement of the TiO2 bands, suppression of recombination prevails and an overall improvement in open-circuit photovoltage is observed. This work was conducted in collaboration with the DOE Office of Science program.",

keywords = "dye-sensitized, electrolytes, nanocrystalline, open-circuit voltages, photoelectrochemical cells, photoinduced charge density, PV, short circuit current (ISC)",

author = "NREL",

note = "Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140); 2004 DOE Solar Energy Technologies Program Review Meeting ; Conference date: 25-10-2004 Through 28-10-2004",

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language = "American English",

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TY - CONF

T1 - First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte

AU - NREL, null

N1 - Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)

PY - 2005

Y1 - 2005

N2 - The composition of the electrolyte is known to greatly influence the performance of dye-sensitized solar cells. It has been speculated that some components of the electrolyte passivate the TiO2 surface against recombination; however, this has never been confirmed experimentally. We hereby present the first case of passivation of the TiO2 surface against recombination by an additive in theelectrolyte. Even though the additive also causes a downward movement of the TiO2 bands, suppression of recombination prevails and an overall improvement in open-circuit photovoltage is observed. This work was conducted in collaboration with the DOE Office of Science program.

AB - The composition of the electrolyte is known to greatly influence the performance of dye-sensitized solar cells. It has been speculated that some components of the electrolyte passivate the TiO2 surface against recombination; however, this has never been confirmed experimentally. We hereby present the first case of passivation of the TiO2 surface against recombination by an additive in theelectrolyte. Even though the additive also causes a downward movement of the TiO2 bands, suppression of recombination prevails and an overall improvement in open-circuit photovoltage is observed. This work was conducted in collaboration with the DOE Office of Science program.

KW - dye-sensitized

KW - electrolytes

KW - nanocrystalline

KW - open-circuit voltages

KW - photoelectrochemical cells

KW - photoinduced charge density

KW - PV

KW - short circuit current (ISC)

M3 - Paper

T2 - 2004 DOE Solar Energy Technologies Program Review Meeting

Y2 - 25 October 2004 through 28 October 2004

ER -

First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte

Abstract

Conference

Bibliographical note

NLR Publication Number

Keywords

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