An invisible keyhole via transparent electronics

Hard times for burglars and safecrackers: Empa researchers have developed an invisible "keyhole" made of printed, transparent electronics. Only authorized persons know where to enter the access code.

Worth their salt: Researchers report first case of hexagonal NaCl

Skoltech and MIPT scientists have predicted and then experimentally confirmed the existence of exotic hexagonal thin films of NaCl on a diamond surface. These films may be useful as gate dielectrics for field effect transistors ...

Flexible photonic crystal from liquid thin-film metasurface

Photonic crystals are predicted to be one of the wonders of the 21st century. In the 20th century, new understanding of the electronic band structure-the physics that determines when a solid conducts or insulates-revolutionized ...

Dietary fiber effectively purifies carbon nanotubes

A new, cheaper method easily and effectively separates two types of carbon nanotubes. The process, developed by Nagoya University researchers in Japan, could be upscaled for manufacturing purified batches of single-wall carbon ...

All-in-one transparent transistors

Small tweaks in component ratios generate electronically different layers from the same material to create transparent transistors.

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