Proceedings of Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP24)
Publication date: 18th October 2023
The rapid development of Hybrid organic-inorganic metal halide perovskite solar cell (PSC) technology is attributed to its simple solution chemistry, high power conversion efficiency (PCE), and potential for cost-effective mass production. However, the scalability and outdoor deployment of PSCs face a critical challenge stemming from the intrinsic instability of perovskite materials in the presence of oxygen and moisture. The long-term reliability of these devices requires appropriate encapsulation to prevent degradation caused by environmental factors.[1] In this work, a low-cost, easily laminated and a library of polyurethanes is synthesized and evaluated for PSCs encapsulation. The polyurethane encapsulation layer shows good protection performance due to improved hydrophobicity and increased resistance of the O2 or H2O diffusion. The encapsulant shows no degradation in extreme conditions like -100 ⁰C and 100 ⁰C. The developed TPUs exhibited robustness, excellent adhesion to glass substrates, and crucially, the low-temperature encapsulation process prevented degradation of the perovskite absorber and other organic layers within the device structure. Encapsulated devices maintained over 93% of their initial power conversion efficiency (PCE) even after exposure to harsh environmental conditions, including high relative humidity (80±5% RH) for more than 1000 hours. Additionally, the encapsulated perovskite absorbers demonstrated remarkable stability when submerged in water.[2] This research underscores the potential of thermoplastic polyurethane as an easily scalable encapsulant for PSCs, opening new avenues for prolonging their operational lifetime and advancing towards commercialization.
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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.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.