Dramatically increased long-term stability of tin-lead PSCs.

New prototype shows very efficient amplified spontaneous emission.

Long-lived blue PHOLEDs are based on plasmon-exciton-polaritons.

An adjustable filter for terahertz light made of cellulose and a conducting polymer.

The method uses a phase-change material that changes its form when light touches it.

Industrial kraft lignin based binary cathode interface layer enables enhanced stability.

Improving cell efficiency using a combination of molecules.

Photonic device bends light as though it were under the influence of gravity.