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Stanford scientists design dichalcogenide solar cells based on tungsten diselenide (www.pv-magazine.com)

submitted 2 months ago by [email protected] to c/[email protected]

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The group designed a sputtered multilayer WSe2 film with a thickness of 15−30 nm for applications on on a 150 mm wafer via a selenization process based on either a solid-source selenium (SS-Se) at 900 C or low-thermal-budget hydrogen selenied (H2Se) precursors at 650 C. The resulting WSe2 film had an energy bandgap of 1.2 eV to 1.3 eV, which the scientists described as near-ideal for solar energy harvesting.

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[–] [email protected] 11 points 2 months ago