Synthesis of green emission upconversion phosphor nanosheets (LaNb2O7) doped with Er3+ and Yb3+
Keywords: Brunauer-Emmett-Teller; UPC; upconversion; XRD; X-ray diffration; BET; brunauer-emmett-teller; TEM; transmission electron microscopy; AFM; atomic force microscope; FE-SEM; field-emission scanning electron microscopy; DFM; dynamic force mode; TBA; tetrabutylammonium; ICSD; in