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Photoelectric measure of atomically thin stacks

A team led by researchers at the University of Warwick have discovered a breakthrough in how to measure the electronic structures of stacked 2D semiconductors using the photoelectric (PE) effect. Materials scientists around the world have been investigating various heterostructures to create different 2D materials, and stacking different combinations of 2D materials creates new materials with new properties.

The new PE method measures the electronic properties of each layer in a stack, allowing researchers to establish the optimal structure for the fastest, most efficient transfer of electrical energy. β€œIt is extremely exciting to be able to see, for the first time, how interactions between atomically thin layers change their electronic structure,” says Neil Wilson, who helped to develop the method. Wilson is from the physics department at the University of Warwick.

Wilson formulated the technique in collaboration with colleagues at the University of Warwick, University of Cambridge, University of Washington, and the Elettra Light Source in Italy. The team reported their findings in Science Advances (DOI: 10.1126/sciadv.1601832).

β€”E.K.

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