Enhanced photovoltaic response of lead-free ferroelectric solar cells based on (K,Bi)(Nb,Yb)O<sub>3</sub> films
Chuanqing Li, Kai Jiang, Jinchun Jiang, Zhigao Hu, Aiyun Liu, Gujin Hu, Wangzhou Shi, Junhao Chu
Abstract
. The enhanced PV effects are well elucidated using the transformation from a Schottky-like barrier to Ohmic contacts caused by polarization switching and oxygen vacancies. Building upon the above studies, deep insights into the bandgap tunability and PV effects in ferroelectric films with high oxygen vacancy concentration are provided and will facilitate a new versatile route for exploring high PV performance based on inorganic ferroelectric films.
Topics & Concepts
Materials scienceFerroelectricityBand gapEnergy conversion efficiencyOptoelectronicsOpen-circuit voltageOhmic contactSchottky barrierPolarization (electrochemistry)Photovoltaic effectPhotovoltaic systemNanotechnologyVoltageDielectricChemistryPhysicsQuantum mechanicsBiologyDiodeLayer (electronics)EcologyPhysical chemistryPerovskite Materials and ApplicationsMultiferroics and related materialsFerroelectric and Piezoelectric Materials