Distinct from conventional photonic crystals with both short‐and long‐range order,
amorphous photonic crystals that possess only short‐range order show interesting optical …

Recent progress in the description of glassy relaxation and aging are reviewed for the wide
class of network-forming materials such as GeO 2, Ge x Se 1− x, silicates (SiO 2–Na 2 O) or …

The study of metal–insulator transitions (MITs) in crystalline solids is a subject of paramount
importance, both from the fundamental point of view and for its relevance to the transport …

Electron paramagnetic resonance (EPR) measurements of Si/SiO 2 systems began over 30
years ago. Most EPR studies of Si/SiO 2 systems have dealt with two families of defects: P b …

The continuous random network (CRN) model is an idealized model for perfectly
coordinated amorphous semiconductors. The quality of a CRN can be assessed in terms of …

Hollow multishelled structures (HoMSs), an emergent solid-state material family featuring
multiple shells separated by internal cavities, are gaining intensive interest in applications …

Using an electrochemically gated transistor, we achieved controlled and reversible do**
of<? format?> poly (p-phenylene vinylene) in a large concentration range. Our data open a …

Density functional theory simulations are used to identify the structural factors that define the
material properties of ovonic threshold switches (OTS). They show that the nature of mobility …

In recent years, photocatalytic splitting of water to produce hydrogen has attracted significant
attention. Crystalline forms of titanium dioxide (TiO2) have been investigated for decades …

In this Colloquium, I describe some current frontiers in the physics of semiconducting
amorphous materials and glasses, including a short, but self-contained discussion of …