Polarons are quasiparticles that easily form in polarizable materials due to the coupling of
excess electrons or holes with ionic vibrations. These quasiparticles manifest themselves in …

TiO2 photocatalysts have been widely used in the field of renewable energy and
environmental clean-up. However, the large band gap of TiO2, along with the fast …

The immense potential of colossal permittivity (CP) materials for use in modern
microelectronics as well as for high-energy-density storage applications has propelled much …

Carbon is a common impurity in the group-III nitrides, often unintentionally incorporated
during growth. Nevertheless, the properties of carbon impurities in the nitrides are still not …

A combination of scanning tunneling microscopy and spectroscopy and density functional
theory is used to characterize excess electrons in TiO 2 rutile and anatase, two prototypical …

Driven by growing concerns for environmental and energy issues, interest in semiconductor-
based heterogeneous photocatalysis has increased considerably over the last decades …

Open shell transition metal oxides are usually described as Mott or charge transfer
insulators, which are often viewed as being disparate from semiconductors. Based on the …

Redox-active oxides find use in many applications, including catalysts, photovoltaic devices,
self-cleaning glasses, chemical sensors and electronic components. Their utility derives …

Recently, copper (I) halides have been gaining increased attention as highly luminescent
nontoxic alternatives to lead halide perovskites for optoelectronic applications. Here, we …

In this review, we highlight recent progress (2008–2016) in infrared reflection absorption
spectroscopy (IRRAS) studies on oxide powders achieved by using different types of metal …