Growth of p/n-type BiFeO3 thin films for construction of a bilayer p–n junction for photodegradation of organic pollutants

BiFeO 3 (BFO) films were grown on LaNiO 3 (LNO) buffered glass substrates under tailored conditions to exhibit either n-type or p-type conductivity, allowing fabrication of a bilayer p–n junction for efficient photodegradation of organic pollutants.