University of Oulu

Vlachopoulos, N., Hagfeldt, A., Benesperi, I., Freitag, M., Hashmi, G., Jia, G., Wahyuono, R. A., Plentz, J., & Dietzek, B. (2021). New approaches in component design for dye-sensitized solar cells. Sustainable Energy & Fuels, 5(2), 367–383.

New approaches in component design for dye-sensitized solar cells

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Author: Vlachopoulos, Nick1; Hagfeldt, Anders1; Benesperi, Iacopo2,3;
Organizations: 1Laboratory of Photonics and Interfaces, Institute of Chemical Science and Engineering, Swiss Federal Institute of Technology in Lausanne (EPFL), LSPM-ISIC-EPFL, Chemin des Alambics, Station 6, CH-1015 Lausanne, Switzerland
2Department of Chemistry, Ångström Laboratory, Uppsala University, P. O. Box 523, SE-75120 Uppsala, Sweden
3School of Natural and Environmental Science, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, UK
4Microelectronics Research Unit, Faculty of Information Technology & Electrical Engineering, University of Oulu, P. O. Box 8000, Finland
5Department of Applied Physics, Aalto University, Puumiehenkuja 2, 02150 Espoo, P. O. Box 15100, FI-00076 Aalto, Finland
6Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, 07745 Jena, Germany
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.7 MB)
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Language: English
Published: Royal Society of Chemistry, 2021
Publish Date: 2022-02-08


The present perspective presents a number of issues related to the current direction of DSSC research, with emphasis on the transition from iodide-containing electrolyte to charge-transport media (CTMs), electrolytes or solid-state conductors based on inorganic coordination complexes, aiming to attain a better light-to-electricity conversion efficiency, associated with larger photovoltage, and long-term stability. Such a change necessitates the concomitant introduction of novel dyes and counter electrodes. The first part of the perspective introduces an overview of the DSSC field and a number of considerations related to the transition from the triiodide/iodide-based CTM to CTMs based on alternative systems. Subsequently, the recent developments of CTM based on Cu coordination complexes are discussed, from the inorganic physical chemistry point of view, including some highlights about novel dyes associated to these CTMs. Finally, several preparation methods and applications of different types of novel carbonaceous counter electrode substrates, related to the application of the aforementioned novel CTMs, are presented.

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Series: Sustainable energy & fuels
ISSN: 2398-4902
ISSN-E: 2398-4902
ISSN-L: 2398-4902
Volume: 5
Issue: 2
Pages: 367 - 383
DOI: 10.1039/D0SE00596G
Type of Publication: A1 Journal article – refereed
Field of Science: 116 Chemical sciences
Funding: Ghufran Hashmi is grateful to Jane and Aatos Erkko Foundation and Technology Industries of Finland for the CAPRINT project funding (Decision# 243035481) and Dean's funding for highly ranked applicant at the Department of Applied Physics at Aalto University (Decision# 164/2018). Guobin Jia, Ruri Agung Wahyuono, Jonathan Plentz and Benjamin Dietzek gratefully acknowledge the provision of funding for parts of this work by the German Free State of Thuringia (TAB), co-financed by the European Social Fund (ESF) and European Regional Development Fund (ERDF) within the projects “ESTI” (2019 FGR 0080) and “FEST” (2016 FE 9028).
Copyright information: © 2020 The Authors. The final authenticated version is available online at