(a) Product of microwave photoconductivity intensity and its lifetime of oxyhalide photocatalyt 2 vs calcination temperature. The microwave measurements suggest the optimal temperature of 600 ? that is 100 ? lower than the reported one. (b) O2-evolution rate of oxyhalide photocatalyt 2 prepared by different calcination temperature.
Using a box built from stacked atomically thin layers of the material tungsten disulphide (see the atomic model), Chalmers researchers have succeeded in creating a type of feedback loop in which light and matter become one. This new concept involves two distinct processes being housed in the same nanodisk. The box has a diameter of only 100 nanometres (0.00001 centimetres) and opens the way to new fundamental research and more compact solutions in nanophotonics.