2D Materials: Quaternary 2D Transition Metal Dichalcogenides (TMDs) with Tunable Bandgap (Adv. Mater. 35/2017)

Quaternary alloying (mixing of four elements) provides the flexibility to engineer the optical bandgap of atomically thin transition-metal dichalcogenide (TMD) materials. Such alloying also influences the growth temperature. In article number 1702457, Boris I. Yakobson, Chandra Sekhar Tiwary, Pulickel M. Ajayan, and co-workers describe the quaternary alloying of Mo, W, S, and Se to produce alloys where the bandgap can be tuned from 1.61 to 1.85 eV.

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