Phys.org April 1, 2022 An international team of researchers (Japan, France, Germany, Switzerland) has developed a new environment-sensing device based on the opto-ionic-electronic phenomena of an octahedral molybdenum metal (Mo6) cluster. When the Mo6 cluster is electrochemically deposited on a transparent electrode in an organic solvent containing a trace amount of water, the water permeates the deposited film. During the process, some ligand species that stabilize the frame structure of the Mo6 cluster are substituted with hydroxyl groups, and the negatively charged frame structure of the Mo6 cluster unit is stabilized by hydronium counterions. As a result, the transparent film […]
Tag Archives: Environmental sensing
Reversible electro-optical detector for environmental sensing of pollutants
Phys.org July 15, 2019 An international team of researchers (Spain, France, USA – Lawrence Berkeley National Laboratory) proposes the use of a simple non-porous coordination polymer that shows a magneto-structural transition under desorption/absorption of acetonitrile molecules in the structure. This reversible change produces a measurable response in the presence of acetonitrile. This response comes in the form of a change in the color of the polymer from orange to yellow and an abrupt increase in the electrical conductivity. Both responses are easily observed by the naked eye or easily measured, providing an obvious advantage over other costly analytical techniques. The […]