A New Up-conversion Material of Ho3+-Yb3+-Mg2+ Tri-doped TiO2 and Its Applications to Perovskite Solar Cells
Abstract A new up-conversion nanomaterial of Ho3+-Yb3+-Mg2+ tri-doped TiO2 (UC-Mg-TiO2) was designed and GREEK YOGURT STARTER synthesized with a sol-gel method.The UC-Mg-TiO2 presented enhanced up-conversion fluorescence by an addition of Mg2+.The UC-Mg-TiO2 was utilized to fabricate perovskite solar cells by forming a thin layer on the electron tr