Barbero, N.

Barolo, C.

Bonomo, M.

Borrelli, R.

Buscaino, R.

Fin, A.

Galliano, S.

Quagliotto, P.

Viscardi, G.

English

Institutional Research Information System University of Turin

14 October 2023AperTO - Archivio Istituzionale Open Access dell'Università di TorinoOriginal Citation:Far red and near infra-red dyes in dye-sensitized solar cells: Key ingredients for bothpanchromatic absorption and transparent solar windowsTerms of use:Open Access(Article begins on next page)Anyone can freely access the full text of works made available as "Open Access". Works made availableunder a Creative Commons license can be used according to the terms and conditions of said license. Useof all other works requires consent of the right holder (author or publisher) if not exempted from copyrightprotection by the applicable law.Availability:This is the author's manuscriptThis version is available http://hdl.handle.net/2318/1882723 since 2022-12-12T14:09:00ZFar Red and Near Infra-Red Dyes in Dye-Sensitized Solar Cells: key ingredients for both panchromatic absorption and transparent solar windowsNadia Barbero1, Raffaele Borrelli2, Simone Galliano1, Matteo Bonomo1, Andrea Fin1, Roberto Buscaino1, Pierluigi Quagliotto1, Claudia Barolo1,3, Guido Viscardi11Dipartimento di Chimica, NIS Interdepartmental and INSTM Reference Centre, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino2Dipartimento di Scienze Agrarie Forestali e Alimentari, Largo Paolo Braccini 2, 10095 Grugliasco3ICxT Interdepartmental Centre, Lungo Dora Siena 100, 10153 TorinoUniversità degli Studi di Torino, ItalyVittoria Novelli, Frédéric SauvageLaboratoire de Réactivité et Chimie des Solides, CNRS UMR7314, Université de Picardie Jules Verne, 33 Rue St-Leu, 80039 Amiens, Cedex, FranceFederico Bella, Claudio GerbaldiGAME Lab, DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italye-mail: claudia.barolo@unito.itNowadays, low-cost solar energy harvesting technologies able to provide enhanced performance under low or weak irradiation and possessing aesthetically pleasing/functional features (BIVP) are requested as complementary renewable sources to Si-based photovoltaics (PV). Among them, dye-sensitized solar cells (DSSCs) are one of the most interesting alternatives [1–2]Moreover, most PV technologies absorb the visible domain of the light spectrum that is  why these devices are not transparent or no less than semi-transparent. However, far-red/near infra-red (NIR) light is  indubitably interesting to widen solar harvesting corresponding to 25% of overall solar light available on earth’s surface. Of course, the photoconversion expected by the exploitation of these frequencies (700-1000 nm) is lower with respect to the visible region. But, NIR sensitizers allow to tune the colours of final devices from green to blue, even to transparent. Transparent cells without any coloration would allow the visible light to pass through unhampered reaching a fully integration of PV devices in building-integrated applications. [3]The photosensitizer has a crucial role in a NIR-DSSC system. Different families of NIR chromophores have been investigated for applications in DSSCs with relatively low success in terms of transparency and power conversion efficiency. At present, NIR-based DSSCs exhibited at best 2.3% PCE with very thick electrodes sensitized with a cyanine dye absorbing at 805 nm. [4]. Our group have already developed several squaraine dyes for DSSC absorbing in the NIR region. [5,6]A few series of new efficient organic sensitizers based on squaraine [7], cyanine and croconine core-units (Figure 1) with a shifted absorption as high as 830 nm have been synthesized and fully characterized. DSSCs based on these new efficient sensitizers are able to convert up to 36% IPCE until 850 nm. Their light-to-electricity performances have been optimized by using highly diluted dye solution to promote the formation of a free self-assembled monolayer.Figure 1. Examples of structures of polymethine dyes.Finally, application of these novel sensitizers also in water based DSSC [8-9] and their optimization will be discussed.References[1] De Rossi, F.; Pontecorvo, T.; Brown, T. M. Applied Energy 2015, 156, 413-422.[2] Freitag, M.; Teuscher, J.; Saygili, Y.; Zhang, X.; Giordano, F.; Liska, P.; Hua, J.; Zakeeruddin, S. M.; Moser, J.-E.; Grätzel, M.; et al. Nature Photonics 2017, 11, 372-379[3] Barbero, N.; Sauvage, F. in Materials for Sustainable Energy Applications: Conversion, Storage, Transmission and Consumption  (Eds.: X. Moya, D. Munoz-Rojas), CRC Press, 2016, pp. 87–147.[4] Ono, T.; Yamaguchi, T; Arakawa, H. Sol. Energy Mater. Sol. Cells 2009, 93, 831-835.[5] Magistris, C.; Martiniani, S.; Barbero, N.; Park, J.; Benzi, C.; Anderson, A.; Law, C.; Barolo, C.; B. O’Regan, B. Renew. Energ. 2013, 60, 672–678[6] Galliano, S.; Novelli, V.; Barbero, N.; Smarra, A.; Viscardi, G.; Borrelli, R.; Sauvage, F.; Barolo, C. Energies 2016, 9, 486.[7] Barbero, N.; Magistris, C.; Park, J.; Saccone, D.; Quagliotto, P.; Buscaino, R.; Medana, C.; Barolo, C.; Viscardi, G. Org. Lett. 2015, 17, 3306–3309.[8] Bella, F.; Gerbaldi, C.; Barolo, C; Grätzel, M. Chem Soc Rev 2015, 44, 3431-3473.[9] Bella, F.; Galliano, S.; Falco, M; Viscardi, G; Barolo, C; Grätzel, M.; Gerbaldi, C. Green Chem 2017, 19, 1043-

Far red and near infra-red dyes in dye-sensitized solar cells: Key ingredients for both panchromatic absorption and transparent solar windows

https://iris.unito.it/bitstream/2318/1882723/1/pub19_25.pdf

Far red and near infra-red dyes in dye-sensitized solar cells: Key ingredients for both panchromatic absorption and transparent solar windows

Abstract

Similar works

Full text

Available Versions

Institutional Research Information System University of Turin