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The first single-molecule LED

02/25/2014

Researchers have developed the first ever single-molecule LED. It seems like they crossed the finish line in the race to miniaturize light emitting diodes (LED).

A team of scientists led by the Institut de physique et de chimie des matériaux de Strasbourg (IPCMS, CNRS/Université de Strasbourg), working with UPMC and CEA, has just developed the first ever single-molecule LED. The device is composed of a single polythiophene wire placed between the tip of a scanning tunneling microscope and a gold surface. It only emits light when the current flows in one direction.

This experimental tour de force enables us to better understand interactions between electrons and photons on very small scales. It is also a step forward towards developing components for a future molecular computer. These papers were published in Physical Review Letters.

Read the whole article on CEA website.

Picture: © Guillaume Schull - IPCMS (CNRS/Université de Strasbourg)