Indirect-to-Direct Band Gap Crossover in Few-Layer MoTe2

Gutiérrez Lezama, Ignacio; Arora, Ashish; Ubaldini, Alberto; Barreteau, Céline; Giannini, E.; Potemski, M.; F. Morpurgo, Alberto

doi:10.1021/nl5045007

Public

Indirect-to-Direct Band Gap Crossover in Few-Layer MoTe2

Published in Nano Letters • Mar 24, 2015

Authors:

Ignacio Gutiérrez Lezama

Ashish Arora

Alberto Ubaldini

Abstract

We study the evolution of the band gap structure in few-layer MoTe2 crystals, by means of low-temperature microreflectance (MR) and temperature-dependent photoluminescence (PL) measurements. The analysis of the measurements indicate that in complete analogy with other semiconducting transition metal...

Subject

Crossover

Band gap

Layer (electronics)

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