In 2016 and 2017, SJ-10 and TG-2 satellites were launched. In this short paper, we report recent progress on the studies of manipulation of colloidal droplets and instability of thermocapillary convection in large Pra...In 2016 and 2017, SJ-10 and TG-2 satellites were launched. In this short paper, we report recent progress on the studies of manipulation of colloidal droplets and instability of thermocapillary convection in large Prandtl number liquid bridge that based on the space experiments boarding SJ-10 and TG-2 satellites,separately. It was shown that the colloidal droplets can be successfully formed and manipulated in microgravity through the patterned substrates. In another aspect, the coffee-ring effect was observed at the first time in space. For the studies of the instability of thermocapillary convection in large Prandtl number liquid bridge in microgravity, our experiments in TG-2 broadened the way of such kind of study and abundant experimental results are emerging.展开更多
ZnO:Ag films were prepared by rf sputtering on Si substrates.A detailed study on as-grown and annealed films was carried out using x-ray diffraction(XRD).The results indicate that the film crystalline quality and the ...ZnO:Ag films were prepared by rf sputtering on Si substrates.A detailed study on as-grown and annealed films was carried out using x-ray diffraction(XRD).The results indicate that the film crystalline quality and the Ag doping efficiency were both influenced by oxygen in the sputtering and annealing atmosphere.The optimum conditions are found.Ultraviolet and green emissions of annealed ZnO:Ag films were observed at room temperature.Photoluminescence results show that oxygen in annealing atmosphere reduces the deep-level defects in ZnO:Ag and increases the film quality.展开更多
文摘In 2016 and 2017, SJ-10 and TG-2 satellites were launched. In this short paper, we report recent progress on the studies of manipulation of colloidal droplets and instability of thermocapillary convection in large Prandtl number liquid bridge that based on the space experiments boarding SJ-10 and TG-2 satellites,separately. It was shown that the colloidal droplets can be successfully formed and manipulated in microgravity through the patterned substrates. In another aspect, the coffee-ring effect was observed at the first time in space. For the studies of the instability of thermocapillary convection in large Prandtl number liquid bridge in microgravity, our experiments in TG-2 broadened the way of such kind of study and abundant experimental results are emerging.
文摘ZnO:Ag films were prepared by rf sputtering on Si substrates.A detailed study on as-grown and annealed films was carried out using x-ray diffraction(XRD).The results indicate that the film crystalline quality and the Ag doping efficiency were both influenced by oxygen in the sputtering and annealing atmosphere.The optimum conditions are found.Ultraviolet and green emissions of annealed ZnO:Ag films were observed at room temperature.Photoluminescence results show that oxygen in annealing atmosphere reduces the deep-level defects in ZnO:Ag and increases the film quality.
