Science, Space and Technology News 2023
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“The beautiful thing about this work is that it shows the fabrication of phase heterojunction solar cells by utilizing two polymorphs of the same material is the way to go,” Dzade said. “It improves material stability and prevents interconversion between the two phases. The formation of a coherent interface between the two phases allows electrons to flow easily across the device, leading to enhanced power conversion efficiency. That is what we demonstrated in this piece of work.
Dzade’s colleagues at Chonnam University in South Korea developed the unique dual deposition method for fabricating the device — depositing one phase with a hot-air technique and the other with triple-source thermal evaporation. Adding small amounts of molecular and organic additives during the deposition process further improved the electrical properties, efficiency, and stability of the device, said Sawanta S.
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