Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
DOI: https://doi.org/10.29363/nanoge.iperop.2024.012
Publication date: 18th October 2023
Perovskite materials have a great potential for high efficiency in photovoltaic devices and the best performances have now exceed 26% in single junction. We now need to further develop perovskite device architectures that combine simple industrial development with effective durability. Recently, a novel type of architecture emerged for which no hole transport layer is needed thanks to carbon electrodes which are able to extract photo-generated holes by themselves. Consequently, the use of carbon-based perovskite solar cells (C-PSC) with inexpensive and stable carbon electrode not only enhances the durability of the devices but also reduces fabrication costs.
In the presented work, the perovskite deposition has been realized using a final perovskite infiltration through a mesoporous scaffold composed of metal oxide and carbon layers, affording a clean industrial process for large-scale and stable perovskite devices. Different variations will be here explored, including the formulation of the perovskite, the technique of infiltration for the perovskite, the implementation of a post-treatment, and the choice of the encapsulation process. A study of the occurring mechanisms will be conducted using a full set of characterization techniques including J-V measurements, UV-visible and photoluminescence (PL) spectroscopies, light-beam induced current (LBIC) and PL imaging mappings, X-ray diffraction (XRD), Scanning electron microscopy (SEM), Raman spectroscopy and Electrochemical impedance spectroscopy (ESI).
Finally, the impact on the durability of photovoltaic performances of all the selected variations will be investigated in order to define the more promising paths to future industrial applications. A special attention will also be given to the method used to measure performances by analyzing J-V curves at different scan rates. Indeed, this allowed us to define boundary conditions allowing the observation of two different states within our devices (defined as ‘stable’ and ‘metastable’). This behavior was interpreted as a structural transition and can vary upon aging according to the selected device configuration.
This work has been partly founded by both: the European “UNIQUE” project, supported under the umbrella of SOLAR-ERA.NET_Cofund by ANR, PtJ, MIUR, MINECO-AEI, SWEA (Cofund ERA-NET Action, N° 691664), and the “PROPER” project supported by “EIG Concert Japan” and financed from the French National Centre for Scientific Research under the funding number “IRUEC 222437”.
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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.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
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