TY - JOUR
T1 - Dual-source vacuum deposition of pure and mixed halide 2D perovskites
T2 - Thin film characterization and processing guidelines
AU - La-Placa, Maria Grazia
AU - Guo, Dengyang
AU - Gil-Escrig, Lidón
AU - Palazon, Francisco
AU - Sessolo, Michele
AU - Bolink, Henk J.
PY - 2020
Y1 - 2020
N2 - The dual-source vacuum deposition of 2D perovskite films of the type PEA2PbX4, (PEA = phenethylammonium and X = I-, Br-, or a combination of both) is presented. Low-temperature deposited 2D perovskite films showed high crystallinity with the expected trend of bandgap as a function of halide type and concentration. Importantly, we observed an unavoidable halide cross-contamination among different deposition runs, as well as a strong dependence of the material quality on the type of halide precursors used. These findings should be taken into account in the development of vacuum processing for low-dimensional mixed halide perovskites.
AB - The dual-source vacuum deposition of 2D perovskite films of the type PEA2PbX4, (PEA = phenethylammonium and X = I-, Br-, or a combination of both) is presented. Low-temperature deposited 2D perovskite films showed high crystallinity with the expected trend of bandgap as a function of halide type and concentration. Importantly, we observed an unavoidable halide cross-contamination among different deposition runs, as well as a strong dependence of the material quality on the type of halide precursors used. These findings should be taken into account in the development of vacuum processing for low-dimensional mixed halide perovskites.
UR - http://www.scopus.com/inward/record.url?scp=85079518924&partnerID=8YFLogxK
U2 - 10.1039/c9tc06662d
DO - 10.1039/c9tc06662d
M3 - Article
AN - SCOPUS:85079518924
SN - 2050-7534
VL - 8
SP - 1902
EP - 1908
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 6
ER -