Abstract Lead‐halide perovskites (LHPs), in the form of both colloidal nanocrystals (NCs)
and thin films, have emerged over the past decade as leading candidates for next …

Since the first days of high-T c superconductivity, the materials science and the physics of
grain boundaries in superconducting compounds have developed into fascinating fields of …

Three different values (3.1, 3.2, and 3.3 eV) have been reported for the optical band gap of
zinc oxide single crystals at room temperature. By comparing the optical properties of ZnO …

INTRODUCTION Hybrid metal halide perovskites are highly favorable materials for efficient
photovoltaic and optoelectronic applications. The mechanisms behind their impressive …

The nature and length scales of charge screening in complex oxides are fundamental to a
wide range of systems, spanning ceramic voltage-dependent resistors (varistors), oxide …

Many thermoelectric materials benefit from complex microstructures. Grain boundaries (GBs)
in nanocrystalline thermoelectrics cause desirable reduction in the thermal conductivity by …

The discovery of a giant dielectric constant,, of 105 in CaCu3Ti4O12 has increased interest
in this perovskite-type oxide. Here we demonstrate that, in addition to high permittivity …

At the heart of modern oxide chemistry lies the recognition that beneficial (as well as
deleterious) materials properties can be obtained by deliberate deviations of oxygen atom …

The oxidation status of Cu-based materials have been proved to be essential to the
catalytical performances of electrochemical CO 2 reduction. The coexistence of Cu+ and Cu …

The influence of electrode material, dc bias, and pellet thickness on the electrical properties
of fine-and coarse-grained Ca Cu 3 Ti 4 O 12 (CCTO) ceramics has been investigated using …