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

Research output: Contribution to conferencePaper

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 languageAmerican English
Number of pages5
StatePublished - 2005
Event2004 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado
Duration: 25 Oct 200428 Oct 2004

Conference

Conference2004 DOE Solar Energy Technologies Program Review Meeting
CityDenver, Colorado
Period25/10/0428/10/04

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)

NREL Publication Number

  • NREL/CP-520-37055

Keywords

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

Fingerprint

Dive into the research topics of 'First Demonstration of Surface Passivation in Dye-Sensitized TiO2 Solar Cells by an Additive in the Electrolyte'. Together they form a unique fingerprint.

Cite this