Parylene-Sealed Perovskite Nanocrystals Down-Shifting Layer for Luminescent Spectral Matching in Thin Film Photovoltaics
Ana Pinheiro,
Andreia Ruivo,
João Rocha,
Marta Ferro,
Joana Vaz Pinto,
Jonas Deuermeier,
Tiago Mateus,
Ana Santa,
Manuel J. Mendes,
Rodrigo Martins,
Sandra Gago,
César A. T. Laia,
Hugo Águas
Affiliations
Ana Pinheiro
R&D Unit VICARTE—Vidro e Cerâmica para as Artes, NOVA School of Science and Technology, Largo da Torre, 2825-516 Caparica, Portugal
Andreia Ruivo
R&D Unit VICARTE—Vidro e Cerâmica para as Artes, NOVA School of Science and Technology, Largo da Torre, 2825-516 Caparica, Portugal
João Rocha
Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Marta Ferro
Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Joana Vaz Pinto
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Jonas Deuermeier
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Tiago Mateus
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Ana Santa
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Manuel J. Mendes
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Rodrigo Martins
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Sandra Gago
Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), NOVA School of Sciences and Technology, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
César A. T. Laia
Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), NOVA School of Sciences and Technology, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
Hugo Águas
CENIMAT|i3N, NOVA School of Sciences and Technology and CEMOP/UNINOVA, FCT NOVA, Largo da Torre, 2825-516 Caparica, Portugal
The present contribution aims to enhance solar cells’ performance via the development of advanced luminescent down-shifting based on encapsulated nanostructured perovskite materials. Here, thin films of inorganic lead halide (CsPbBr3) perovskite nanocrystal luminophores were synthetized, by hot-injection, deposited on glass substrates by spin-coating, and encapsulated with parylene type C, via chemical vapor deposition, to protect and stabilize the films. The optical properties of these thin films were characterized by absorption, emission and 2D contour spectra, their structure by X-ray diffraction and X-ray photoelectron spectroscopy, and the morphology by Scanning Transmission Electron microscopy. I–V curve and spectral response nanocrystalline silicon photovoltaic (nc-Si:H PV) cells were studied in the absence and presence of the perovskite and parylene luminescent down-shifting layers. The incorporation of the CsPbBr3 nanocrystals and their encapsulation with the parylene type C polymeric coating led to an increase in the current generated and the spectral response of the PV cells in the regime of the nanocrystals’ fluorescence emission. A 3.1% increase in the short circuit current density and a 5.6% increase in the power conversion efficiency were observed.