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5  Articles
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Nanoparticles of silicates and germanates with a general formula Sr2R8–x–yErxYbyM6O26 (R = Y, La; M = Si, Ge) were produced in vacuum by the method of pulse electron beam evaporation. An upconversion photoluminescence of the nanoparticles was detected dur... see more

Trong ba`i báo na`y, a?nh huo?ng cu?a quá tri`nh xu? ly´ nhiê?t dê´n cuo`ng dô? phát xa? chuyê?n dô?i buóc sóng tu` vu`ng hô`ng ngoa?i sang vu`ng ánh sáng nhi`n thâ´y (UC: Upconversion) va` cuo`ng dô? phát xa? câ?n hô`ng ngoa?i (NIR) cu?a don ta?p Er3+ tr... see more

In this paper, we present a review of enhancement and wavelength shift of abnormal upconversion green light emission from erbium ions doped in silica with narrow linewidth in the metallic-coated microsphere cavity. Although the phenomenon o... see more

Gadolinium-doped nanoparticles (NPs) are regarded as promising luminescent probes. In this report, we studied details of toxicity mechanism of low doses of NaGdF4-based fluorescent nanoparticles in activated RAW264.7, J774A.1 macrophages. These cell lines... see more

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