Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)
Publication date: 30th March 2023
Perovskite materials have become promising semiconductors for photovoltaic applications, combined with silicon tandem solar cells owing to their high-power conversion efficiency (PCE) of over 30%. Due to the PSCs still presenting poor long-term stability against recombination losses and moisture issues. Several researchers keep working to break out and give answers to such obstacles. In this work, we report the introduction of chloride ions (Cl-) into a solution-processed MA-free wide band-gap perovskite, for enhancing the device performance and stability under high temperature. This perovskite composition show enhanced charge extraction and transport, as well as reduced non-radiative recombination losses through the passivation of defects due to a noticeable increment in the grain size of perovskite. The PSCs with p-i-n structure achieved PCEs up to 22.4% and ultra-high stability, retaining ≈ 90% of their initial efficiency over 1000 h of continuous unencapsulated operation in a nitrogen atmosphere under high temperature. Furthermore, this triple halide perovskite allowed the fabrication of two-terminal monolithic tandem cells, with an efficiency as high as 27.9%. Overall, this work provides a robust protocol for the solution-processing of a novel perovskite composition that critically enhances operational stability, bringing perovskite materials and devices closer to their 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.
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