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A Player Often Neglected: Electrochemical Comprehensive Analysis of Counter Electrodes for Quantum Dot Solar Cells
SENSOR Lab, Department of Information Engineering, University of Brescia, Department of Information Engineering, University of Brescia, CNR-INO SENSOR Lab.
Chemistry for Technologies Laboratory Dipartimento di Ingegneria Meccanica e Industriale, INSTM and University of Brescia.
SENSOR Lab, Department of Information Engineering, University of Brescia, Istituto per l’Energetica e le Interfasi, Dipartimento di Scienze Chimiche, CNR and Università di Padova.
University of Brescia, Chemistry for Technologies Laboratory Dipartimento di Ingegneria Meccanica e Industriale, INSTM and University of Brescia.
Vise andre og tillknytning
2016 (engelsk)Inngår i: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, nr 12, s. 7766-7776Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The role played by the counter electrode (CE) in quantum dot sensitized solar cells (QDSSCs) is crucial: it is indeed responsible for catalyzing the regeneration of the redox electrolyte after its action to take back the oxidized light harvesters to the ground state, thus keeping the device active and stable. The activity of CE is moreover directly related to the fill factor and short circuit current through the resistance of the interface electrode–electrolyte that affects the series resistance of the cell. Despite that, too few efforts have been devoted to a comprehensive analysis of this important device component. In this work we combine an extensive electrochemical characterization of the most common materials exploited as CEs in QDSSCs (namely, Pt, Au, Cu2S obtained by brass treatment, and Cu2S deposited on conducting glass via spray) with a detailed characterization of their surface composition and morphology, aimed at systematically defining the relationship between their nature and electrocatalytic activity.

sted, utgiver, år, opplag, sider
2016. Vol. 8, nr 12, s. 7766-7776
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Identifikatorer
URN: urn:nbn:se:ltu:diva-12118DOI: 10.1021/acsami.5b11508ISI: 000373519500018PubMedID: 26955853Scopus ID: 2-s2.0-84963725490Lokal ID: b2fe4c57-1447-44b7-a4ed-6158b1048abdOAI: oai:DiVA.org:ltu-12118DiVA, id: diva2:985068
Merknad
Validerad; 2016; Nivå 2; 20160414 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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