Progress in the Application of Fluorine-Substituted Organic Hole Transport Materials for Perovskite Solar Cells
Perovskite solar cells(PSCs)are of significant importance in the fields of environment,ecology,and energy struc-ture adjustment due to their exceptional performance,cost-effectiveness,and straightforward preparation process.Among them,hole transport materials(HTMs)play a crucial role in PSCs by effectively regulating the battery interface barrier,facili-tating hole transport and collection,reducing charge recombination,optimizing the perovskite layer-electrode interface,and enhancing the properties of perovskite light absorption layer.Fluorine-substituted materials possess unique charge transport and photoelectric properties.The introduction of fluorine atoms into organic molecules through induction and conjugation effects can lower molecular energy levels,improve HTM hole mobility thereby enhancing PSCs performance.This paper pro-vides a comprehensive review and summary on the impact of fluorine-substituted organic hole transport materials on the pho-toelectric properties of PSCs as well as their underlying mechanisms.
perovskite solar cellshole transport materialfluorine substitutionorganic material