Birefringence is one of key performance for optical functional crystals owing to their
indispensable role in angle phase-matching or adjusting the polarization of light. In the past …

Semiconductors with multiple anions currently provide a new materials platform from which
improved functionality emerges, posing new challenges and opportunities in material …

It remains a challenge to identify the active sites of bismuth catalysts in the electrochemical
CO2 reduction reaction. Here we show through in situ characterization that the activation of …

Tin-lead halide perovskites with a bandgap near 1.2 electron-volt hold great promise for thin-
film photovoltaics. However, the film quality of solution-processed Sn-Pb perovskites is …

The rising demand for energy has accelerated the search for clean and renewable sources
and newer approaches towards efficient energy management. One of the most promising …

Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric
generators. This is because Bi2Te3 (or more precisely its alloys with Sb2Te3 for p‐type and …

The Urbach energy is an expression of the static and dynamic disorder in a semiconductor
and is directly accessible via optical characterization techniques. The strength of this metric …

Solar energy is attractive because it is free, renewable, abundant and sustainable.
Photocatalysis is one of the feasible routes to utilize solar energy for the degradation of …

Efficient manipulation of thermal conductivity and fundamental understanding of the
microscopic mechanisms of phonon scattering in crystalline solids are crucial to achieve …

Post-transition metal cations with a lone pair (n s2 n p0) electronic configuration such as
Pb2+ and Bi3+ are important components of materials for solar-to-energy conversion. As in …