Premium
Solar Cells: Organometal Halide Perovskite Solar Cells with Improved Thermal Stability via Grain Boundary Passivation Using a Molecular Additive (Adv. Funct. Mater. 42/2017)
Author(s) -
Park Chaneui,
Ko Hyomin,
Sin Dong Hun,
Song Kyu Chan,
Cho Kilwon
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201770249
Subject(s) - passivation , halide , grain boundary , materials science , perovskite (structure) , thermal stability , crystal (programming language) , chemical engineering , halogen , inorganic chemistry , nanotechnology , microstructure , composite material , organic chemistry , chemistry , layer (electronics) , engineering , alkyl , computer science , programming language
In article number 1703546 , Kilwon Cho and co‐workers demonstrate that PCBM molecules chemically passivate the grain boundaries of organometal halide perovskite crystals. The chemical passivation prevents halogens at the crystal boundaries from exiting from the crystal lattice, and thereby retards thermal degradation of the perovskite crystals. The tunability of perovskite grain boundaries by additives is an advance toward the practical use of organometal halide perovskite solar cells.