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Developing photocathode materials for p-type dye-sensitized solar cells

Lookup NU author(s): Dr Elisabetta Benazzi, Dr John Mallows, Dr Gareth Summers, Dr Fiona Black, Professor Elizabeth GibsonORCiD



This is the authors' accepted manuscript of an article that has been published in its final definitive form by Royal Society of Chemistry, 2019.

For re-use rights please refer to the publisher's terms and conditions.


Dye-sensitized solar cells are photoelectrochemical devices, which are of great interest due to their ease of fabrication and attractive design. This review details the progress made over the last 20 years into the development of more efficient p-type DSCs with the goal of combining both p and the more widely studied n-type (TiO2)-based photoelectrodes in tandem-DSCs. Such tandem architectures offer an opportunity to collect more light, more efficiently by overcoming the thermodynamic limits of single-junction devices. The main components of the p-DSCs, such as the variety of different sensitizers, p-type semiconductors and electrolytes are introduced and their typical performance in devices are compared. The kinetics of light-induced charge transfer at the interfaces between these materials are also discussed and suggestions are made as to which factors could be a priority for future research to increase the performance of p-type DSC to match state-of-the-art TiO2-based devices, which is necessary for a step change in the conversion efficiency.

Publication metadata

Author(s): Benazzi Elisabetta, Mallows John, Summers Gareth, Black Fiona, Gibson Elizabeth

Publication type: Article

Publication status: Published

Journal: Journal of Materials Chemistry A

Year: 2019

Volume: 7

Issue: 34

Pages: 10409-10445

Print publication date: 14/09/2019

Online publication date: 02/08/2019

Acceptance date: 24/07/2019

Date deposited: 23/08/2019

ISSN (print): 2050-7488

ISSN (electronic): 2050-7496

Publisher: Royal Society of Chemistry


DOI: 10.1039/C9TC01822K


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p-TYPE 715354