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Two Redox Couples are Better Than One: Improved Current and Fill Factor from Cobalt-Based Electrolytes in Dye-Sensitized Solar Cells
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi.ORCID-id: 0000-0001-8084-1181
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Molekylär elektronik, CMD.ORCID-id: 0000-0002-4521-2870
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi.
2014 (engelsk)Inngår i: Advanced Energy Materials, ISSN 1614-6832, Vol. 4, nr 8, s. 1301273-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A tandem redox strategy is used in cobalt-based electrolytes. Co(bpy) 3 2+/Co(bpy)3 3+ offers a high photovoltage at the photoanode, whereas the I-/I3 - or Fc/Fc+ redox couples facilitate charge transfer at the counter electrode. Electron exchange in the electrolyte offers beneficial concentration gradients. The overall conversion efficiency is improved from 6.5% to 7.5%.

sted, utgiver, år, opplag, sider
2014. Vol. 4, nr 8, s. 1301273-
Emneord [en]
electrolytes, photoelectrochemistry, redox chemistry, solar cells, tandem redox systems
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-148317DOI: 10.1002/aenm.201301273ISI: 000338020900001Scopus ID: 2-s2.0-84902084202OAI: oai:DiVA.org:kth-148317DiVA, id: diva2:736373
Forskningsfinansiär
Swedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg Foundation
Merknad

QC 20140806

Tilgjengelig fra: 2014-08-06 Laget: 2014-08-05 Sist oppdatert: 2014-08-06bibliografisk kontrollert

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