Charge transport materials in heterojunction solar cells (eg perovskite solar cells (PSCs))
play critical roles in determining charge dynamics, photovoltaic performance and device …

Finding new collective electronic states in materials is one of the fundamental goals of
condensed matter physics. Atomic-scale superlattices formed from transition metal oxides …

We experimentally demonstrate DC functionality of graphene-based hot electron transistors,
which we call graphene base transistors (GBT). The fabrication scheme is potentially …

The control of material interfaces at the atomic level has led to novel interfacial properties
and functionalities. In particular, the study of polar discontinuities at interfaces between …

Two-dimensional (2D) materials, such as graphene (Gr), transition metal dichalcogenides
(TMDs) and hexagonal boron nitride (h-BN), offer interesting opportunities for the …

Perovskite solar cells have been heralded as one of the most promising emerging
technologies in 2016 because of the very high power conversion efficiency of 22% and the …

The next generation of electronics is likely to incorporate various functional materials,
including those exhibiting ferroelectricity, ferromagnetism and metal–insulator transitions …

Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with
changes in octahedral tilts. The resulting phase arises via suppression of polarization by a …

To overcome the problem of minority carrier storage time in bipolar transistors, a hot electron
transistor (HET) has been proposed. This device has the advantage of high working speed …

Single layer graphene is an ideal material for the base layer of hot electron transistors
(HETs) for potential terahertz (THz) applications. The ultrathin body and exceptionally long …