Plasma assisted molecular beam epitaxy of Cu2O on MgO(001): Influence of copper flux on epitaxial orientation

Rydberg excitons in Cu2O microcrystals grown on a silicon platform

“…An emission feature around 1.95 eV was observed for both Cu 2 O microcrystals and the natural bulk sample, which has been reported repeatedly in literature. It was attributed to phononassisted transitions and defect emission in close spectral proximity 14,27,28 with the latter potentially being correlated with local strain in the sample 29 . The ratio of excitonic over defect emission for the measurements shown in Fig.…”

“…Apart from quantum optics, recent reports have reinforced the significant potential of Cu 2 O as a lowcost, non-toxic material in areas such as photocatalysis 8 , solar water splitting 9 , and solar cell devices 10 showing promising photovoltaic efficiencies and marked excitonic effects 11 . Various methods have been reported for the growth of Cu 2 O thin films and single crystals 12 , in particular molecular beam epitaxy 13,14 , magnetron sputtering 15,16 in combination with thermal annealing 17 , electrodeposition 18 , thermal oxidation 19 , and the floating zone method 20 . However, state-of-the-art quantum optics experiments still focus on natural bulk crystals originating from mines, clearly underlining that significant progress in Cu 2 O growth is required to surpass inherent limitations of natural samples.…”

Advances of bioactive tellurium nanomaterials in anti-cancer phototherapy

“…The growth of Te film could be controlled by pulse parameters. In MBE technology, 72 the vapor obtained by heating in an ultrahigh vacuum is directly sprayed onto the substrate, so that the atoms are arranged on the substrate according to the crystal to form a thin film. The use of MBE in the synthesis of tellurene has also been confirmed.…”

Фотолюминесценция кристаллов Cu-=SUB=-2-=/SUB=-O различного происхождения

“…Отметим, что в последние годы активно развиваются новые технологии получения тонких, в том числе эпитаксиальных слоев и нанонитей Cu 2 O (см, например, [16][17][18]).…”