Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
DOI: https://doi.org/10.29363/nanoge.hopv.2020.185
Publication date: 6th February 2020
The stability of the perovskite solar cell is the main topic for the validation of this photovoltaic technology at the industrial level. One of the major challenging topic is the achievement of the thermal stability measured following IEC protocols. Several degradation factors play a crucial role on the stability issue such like the contact migration and the iodine leakage in the perovskite absorber[1]. In this work, we will show how the the thermal stress at 85°C affects the performance of the perovskite solar cell in air. In particular, the open circuit voltage and the fill factor are the main parameters responsible of the decrease in power conversion efficiency[2]. We tested several type of encapsulated devices where the perovskite, the architecture and the interface are designed in order to evaluate the best strategy to achieve long-term stability. The results show that both nip and pin architectures suffer about the electrode migration especially when the electrode is thermally evaporated. Alternative electrodes based on ITO and Carbon are introduced to mitigate this effect. Furthermore, the role of the interfaces between the constituent layers will be reported by varying the perovskite composition and additives. Thanks to the optimization of the contact and the interfaces, T80 lifetime of more than 500 hours will be presented for both architectures.
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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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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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