Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.047
Publication date: 20th April 2022
Lead-free Cs2AgBiBr6 double perovskite is considered as a promising alternative photovoltaic absorber to widely used lead halide perovskites due to its easy processability, high stability, and reduced toxicity.
In this presentation[1], spray-coating processing is considered for the deposition of high quality Cs2AgBiBr6 double perovskite thin films. Microstructural (X-ray diffraction, scanning electron microscopy) and optoelectronic (absorbance, photoluminescence, photocurrent density versus applied voltage curves, electrochemical impedance spectroscopy) properties of spray-coated film are compared with a spin-coated benchmark. Incorporation of the spray-coated Cs2AgBiBr6 double perovskite thin films in solar cells leads to 2.3% photoconversion efficiency with high open-circuit voltage of 1.09 V.
This study highlights the suitability of ultrasonic spray deposition for the optimization of Cs2AgBiBr6 solar cells in terms of microstructural properties, light absorption properties and charge transfer at the Cs2AgBiBr6/hole transporting layer 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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