Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.158
Publication date: 20th April 2022
During my lecture I will present our latest results1,2 on the characterization of different type of solar cells from DSSC and OPV to MAPI using advanced photo-induced time resolved techniques. Using PICE (Photo-induced charge extraction), PIT-PV (Photo-induced Transient PhotoVoltage) and other techniques, we have been able to distinguish between capacitive electronic charge, and a larger amount of charge due to the intrinsic properties of the perovskite material. Moreover, the results allow us to compare different materials, used as hole transport materials (HTM), and the relationship between their HOMO and LUMO energy levels, the solar cell efficiency and the charge losses due to interfacial charge recombination processes occurring at the device under illumination. These techniques and the measurements carried out are key to understand the device function and improve further the efficiency and stability on perovskite MAPI based solar cells.
REFERENCES:
J. Jímenez-López, BDM Pusher, Dirk M. Guldi, E. Palomares. J. Am. Chem. Soc. 142 (3) 1236. 2020.
E. Yalcin, M. can, C. Rodríguz-Seco, E. Aktas, R. Pudi, W. Cambararu, S. Demiç, E. Palomares. Energ. Environ. Sci., 12, 1 230-237, 2019
FIGURES:
Figure 1. Measured charge in complete devices (left) using PIDC (Photo Induced Differential Charging) and the measured PIT-PV (Photo Induced Transient Photovoltage) decays for two solar cells with different TiO2/MAPI interface.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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