Open AccessPreparation of methylammonium lead iodide (CH 3 NH 3 PbI 3 ) thin film perovskite solar cells by chemical vapor deposition using methylamine gas (CH 3 NH 2 ) and hydrogen iodide gas
Author(s) -
Mortan Claudiu,
Hellmann Tim,
Buchhorn Moritz,
d'Eril Melzi Marco,
Clemens Oliver,
Mayer Thomas,
Jaegermann Wolfram
Publication year - 2020
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.734
Subject(s) - iodide , perovskite (structure) , methylamine , chemical vapor deposition , thin film , inorganic chemistry , tetragonal crystal system , lead chloride , hydrogen , chemistry , materials science , analytical chemistry (journal) , nanotechnology , chloride , crystal structure , crystallography , environmental chemistry , organic chemistry
An upscalable chemical vapor deposition setup has been built‐up and employed in producing methylammonium lead iodide (MAPI) thin film perovskite solar cells, leading to a maximum efficiency of 12.9%. The method makes use of methylamine gas and hydrogen iodide gas to transform a predeposited layer of lead(II)iodide (PbI 2 ) into MAPI. Although the reaction mechanism includes the intermediate phases lead oxide (PbO) and lead hydroxide (Pb(OH) 2 ), indicated at least on the surface of the samples by XPS, neither species could be observed in XRD measurements of the stepwise reaction, which show a mixture of highly oriented cubic and tetragonal MAPI perovskite lattice systems.