Toward non-intrusive BIPV: strategies for NIR-selective DSSCs
Claudia Barolo a, Nadia Barbero a, Matteo Bonomo a, Marco Giordano a, Ana Yancy Segura Zarate a, Simone Galliano b, Waad Naim c, Fionnuala Grifoni c, Raffaele Borrelli b, Fabio Matteocci d, Pauline Chotard e, Sylvain Ceurstemont e, Franck Barath e, Aldo DI Carlo d, Frederic Sauvage c
a Dipartimento di Chimica, NIS Interdepartmental and INSTM Reference Centre, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
b Dipartimento di Scienze Agrarie Forestali e Alimentari, Università degli Studi di Torino, IT, Largo Paolo Braccini, 2, Grugliasco, Italy
c CNRS, UPJV, Université Picardie Jules Verne, LRCS, Laboratoire de réactivité et Chimie du Solide, UMR 7314, 15 Rue Baudelocque - 80039 Amiens, France
d G-LYTE SAS, 15, rue de Baudeloque 80 000 – Amiens
e CHOSE- Centre for Hybrid and Organic Solar Energy, Department of Electronics Engineering, University of Rome “Tor Vergata”, Rome, 00133, Italy.
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
València, Spain, 2022 May 19th - 25th
Organizers: Pablo Docampo, Eva Unger and Elizabeth Gibson
Invited Speaker, Claudia Barolo, presentation 145
Publication date: 20th April 2022

Non-intrusive solar panels could represent the next frontier in the integration of photovoltaic technology in transparent windows (i.e. in residential buildings, automotive applications, greenhouses). Among the different possible approaches, Dye-sensitized Solar Cells offer a unique sustainable choice for transparent and even colorless windows, thanks to their wide versatility in the choice of dyes, electrolytes and redox couples as well as their ability to use diffuse light and work in low-light conditions.

The photosensitizer plays a crucial role in a non-intrusive wavelength-selective NIR-DSSC system. [1] Until now, different families of NIR chromophores have been investigated with relatively low success in terms of transparency and power conversion efficiency. Recently, thanks to the joint efforts of different research groups within the IMPRESSIVE project (, we proposed a fully transparent and colorless DSSC that can display 3.1% power conversion efficiency, up to 76% average visible transmittance (AVT), while reaching a color rendering index (CRI) of 92. [2]

Starting from this result, innovative strategies should be applied (both to the synthetic approach and to the cell optimization) to outperform the obtained values and design stable and low-cost compatible materials able to be implemented in a real device.

This project has received funding from the European Union’s Horizon 2020 research and innovation program under Grand Agreement n° 826013.

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