Scientists from Tokyo Metropolitan University have developed a new method for making ordered arrays of nanoholes in metallic oxide thin films using a range of transition metals. The team used a ...

Other groups have developed sensors based on nanohole arrays in metal films. These sensors detect molecules via a phenomenon called surface plasmon resonance. Researchers shine light on the films, ...

Light extraction from organic light-emitting diodes that utilize phosphorescent materials has an internal efficiency of 100% but is limited by an external quantum efficiency (EQE) of 30%. In this ...

(PhysOrg.com) -- Due to the increasing demand for renewable energy sources, photovoltaic solar cells have advanced significantly over the past decade. Since 2002, photovoltaic production worldwide has ...

Plasmonic metal nanostructures offer a promising route to improve the solar energy conversion efficiency of semiconductors. Here we show that incorporation of a hematite nanorod array into a plasmonic ...

Optical physicists in the UK and Spain have fabricated an array of nanoholes that can focus light into a spot that is smaller than the wavelength of light used. The research team, led by Nikolay ...

The process makes a wider selection of ordered transition metal nanohole arrays available for new catalysis, filtration, and sensing applications. Scanning electron microscopy images of newly ...