Next Article in Journal
Gas Hydrate System Offshore Chile
Next Article in Special Issue
Laser Processing Optimization for Large-Area Perovskite Solar Modules
Previous Article in Journal
Power Forecasting of a Photovoltaic Plant Located in ENEA Casaccia Research Center
Previous Article in Special Issue
Improved Electrical and Structural Stability in HTL-Free Perovskite Solar Cells by Vacuum Curing Treatment
Article

Effects of Crystal Morphology on the Hot-Carrier Dynamics in Mixed-Cation Hybrid Lead Halide Perovskites

1
Istituto di Struttura della Materia (ISM-CNR), Division of Ultrafast Processes in Materials (FLASHit), Area della Ricerca di Roma Tor Vergata, Via del Fosso del Cavaliere 100, 00133 Rome, Italy
2
CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy
3
Istituto di Struttura della Materia (ISM-CNR), Division of Ultrafast Processes in Materials (FLASHit), Area della Ricerca di Roma 1, 00015 Monterotondo Scalo, Italy
4
CNR-IMM, Area della Ricerca di Roma Tor Vergata, 100 Via del Fosso del Cavaliere, 00133 Rome, Italy
5
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
*
Author to whom correspondence should be addressed.
Academic Editor: Senthilarasu Sundaram
Energies 2021, 14(3), 708; https://doi.org/10.3390/en14030708
Received: 29 December 2020 / Revised: 22 January 2021 / Accepted: 28 January 2021 / Published: 30 January 2021
Ultrafast pump-probe spectroscopies have proved to be an important tool for the investigation of charge carriers dynamics in perovskite materials providing crucial information on the dynamics of the excited carriers, and fundamental in the development of new devices with tailored photovoltaic properties. Fast transient absorbance spectroscopy on mixed-cation hybrid lead halide perovskite samples was used to investigate how the dimensions and the morphology of the perovskite crystals embedded in the capping (large crystals) and mesoporous (small crystals) layers affect the hot-carrier dynamics in the first hundreds of femtoseconds as a function of the excitation energy. The comparative study between samples with perovskite deposited on substrates with and without the mesoporous layer has shown how the small crystals preserve the temperature of the carriers for a longer period after the excitation than the large crystals. This study showed how the high sensitivity of the time-resolved spectroscopies in discriminating the transient response due to the different morphology of the crystals embedded in the layers of the same sample can be applied in the general characterization of materials to be used in solar cell devices and large area modules, providing further and valuable information for the optimization and enhancement of stability and efficiency in the power conversion of new perovskite-based devices. View Full-Text
Keywords: perovskite; ultrafast; hot-carriers; solar cell perovskite; ultrafast; hot-carriers; solar cell
Show Figures

Graphical abstract

MDPI and ACS Style

Catone, D.; Ammirati, G.; O’Keeffe, P.; Martelli, F.; Di Mario, L.; Turchini, S.; Paladini, A.; Toschi, F.; Agresti, A.; Pescetelli, S.; Di Carlo, A. Effects of Crystal Morphology on the Hot-Carrier Dynamics in Mixed-Cation Hybrid Lead Halide Perovskites. Energies 2021, 14, 708. https://doi.org/10.3390/en14030708

AMA Style

Catone D, Ammirati G, O’Keeffe P, Martelli F, Di Mario L, Turchini S, Paladini A, Toschi F, Agresti A, Pescetelli S, Di Carlo A. Effects of Crystal Morphology on the Hot-Carrier Dynamics in Mixed-Cation Hybrid Lead Halide Perovskites. Energies. 2021; 14(3):708. https://doi.org/10.3390/en14030708

Chicago/Turabian Style

Catone, Daniele, Giuseppe Ammirati, Patrick O’Keeffe, Faustino Martelli, Lorenzo Di Mario, Stefano Turchini, Alessandra Paladini, Francesco Toschi, Antonio Agresti, Sara Pescetelli, and Aldo Di Carlo. 2021. "Effects of Crystal Morphology on the Hot-Carrier Dynamics in Mixed-Cation Hybrid Lead Halide Perovskites" Energies 14, no. 3: 708. https://doi.org/10.3390/en14030708

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop