Wide-bandgap perovskites for multijunction solar cells: improvement of crystalline quality of Cs<sub>0.1</sub>FA<sub>0.9</sub>PbI<sub>1.4</sub>Br<sub>1.6</sub> by using lead thiocyanate
Thuy Thi Nguyen, Jihyun Kim, Yeon Soo Kim, Bich Phuong Nguyen, William Jo
Abstract
High quality wide bandgap perovskite acting as top cells in multijunction solar cells were developed by adding Pb(SCN) 2 to precursor solutions. The number of grain boundaries was reduced and passivated leading to an increase in carrier extraction.
Topics & Concepts
Perovskite (structure)Materials scienceBand gapGrain boundaryOptoelectronicsExtraction (chemistry)Quality (philosophy)CrystallographyChemistryPhysicsMetallurgyChromatographyMicrostructureQuantum mechanicsPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin Filmssolar cell performance optimization