Precursor engineering for high-quality Cs<sub>2</sub>AgBiBr<sub>6</sub> films toward efficient lead-free double perovskite solar cells
Ping Hou, Wenxiang Yang, Ning Wan, Zhi Fang, Jinju Zheng, Minghui Shang, Dingfa Fu, Zuobao Yang, Weiyou Yang
Abstract
We report a facile BiBr<sub>3</sub>(DMSO)<sub>2</sub> adduct process to produce high-quality Cs<sub>2</sub>AgBiBr<sub>6</sub> films with large grains for the first time, which leads to an enhancement of over 40% on the PCE of Cs<sub>2</sub>AgBiBr<sub>6</sub>-based solar cells compared to that of the control sample.
Topics & Concepts
Perovskite (structure)Materials scienceQuality (philosophy)AdductEngineering physicsCrystallographyPhysicsOrganic chemistryChemistryQuantum mechanicsPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties