Enhanced charge carrier mobility in two-dimensional high dielectric molybdenum oxide.

Balendhran, Sivacarendran; Deng, Junkai; Ou, Jian Zhen; Walia, Sumeet; Scott, James; Tang, Jianshi; Wang, Kang L; Field, Matthew R et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

We demonstrate that the energy bandgap of layered, high-dielectric α-MoO(3) can be reduced to values viable for the fabrication of 2D electronic devices. This is achieved through embedding Coulomb charges within the high dielectric media, advantageously limiting charge scattering. As a result, devices with α-MoO(3) of ∼11 nm thickness and carrier mobilities larger than 1100 cm(2) V(-1) s(-1) are obtained.