Microwave-assisted synthesis of NaYF4:Yb3+/Tm3+ upconversion particles with tailored morphology and phase for the design of UV/NIR-active NaYF4:Yb3+/Tm3+@TiO2 core@shell photocatalysts - Ullah, Sajjad; Hazra, Chanchal; Ferreira Neto, Elias Paiva; Silva, Tarciso Cabral da; Rodrigues Filho, Ubirajara Pereira; Ribeiro, Sidney José Lima (CrystEngComm, 2017)