Transition metal dichalcogenide solar cell with 5.1% efficiency

Stanford scientists have fabricated a transition metal dichalcogenide (TMD) solar cell that is claimed to overcome the typical issue of this kind of PV device, the so-called Fermi-level pinning. They used graphene contacts to mitigate this phenomenon and achieved a record power per weight of 4.4 W/g.Transition metal dichalcogenides (TMDs) are two-dimensional materials with remarkable semiconducting properties and high optical absorption coefficients, which makes them suitable for the manufacture of semi-transparent and flexible solar cells with potential applications in aerospace, architecture, ...

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