TY  - GEN
A1  - Wolff, Christian Michael
A1  - Canil, Laura
A1  - Rehermann, Carolin
A1  - Nguyen, Ngoc Linh
A1  - Zu, Fengshuo
A1  - Ralaiarisoa, Maryline
A1  - Caprioglio, Pietro
A1  - Fiedler, Lukas
A1  - Stolterfoht, Martin
A1  - Kogikoski, Junior, Sergio
A1  - Bald, Ilko
A1  - Koch, Norbert
A1  - Unger, Eva L.
A1  - Dittrich, Thomas
A1  - Abate, Antonio
A1  - Neher, Dieter
T1  - Correction to 'Perfluorinated self-assembled monolayers enhance the stability and efficiency of inverted perovskite solar cells' (2020, 14 (2), 1445−1456)
T2  - ACS nano
Y1  - 2020
U6  - https://doi.org/10.1021/acsnano.0c08081
SN  - 1936-0851
SN  - 1936-086X
VL  - 14
IS  - 11
SP  - 16156
EP  - 16156
PB  - American Chemical Society
CY  - Washington, DC
ER  - 
TY  - JOUR
A1  - Braunger, Steffen
A1  - Mundt, Laura E.
A1  - Wolff, Christian Michael
A1  - Mews, Mathias
A1  - Rehermann, Carolin
A1  - Jost, Marko
A1  - Tejada, Alvaro
A1  - Eisenhauer, David
A1  - Becker, Christiane
A1  - Andres Guerra, Jorge
A1  - Unger, Eva
A1  - Korte, Lars
A1  - Neher, Dieter
A1  - Schubert, Martin C.
A1  - Rech, Bernd
A1  - Albrecht, Steve
T1  - Cs(x)FA(1-x)Pb(l(1-y)Br(y))(3) Perovskite Compositions
BT  - the Appearance of Wrinkled Morphology and its Impact on Solar Cell Performance
JF  - The journal of physical chemistry : C, Nanomaterials and interfaces
N2  - We report on the formation of wrinkle-patterned surface morphologies in cesium formamidinium-based Cs(x)FA(1-y)Pb(I1-yBry)(3) perovskite compositions with x = 0-0.3 and y = 0-0.3 under various spin-coating conditions. By varying the Cs and Br contents, the perovskite precursor solution concentration and the spin-coating procedure, the occurrence and characteristics of the wrinkle-shaped morphology can be tailored systematically. Cs(0.17)FA(0.83)Pb(I0.83Br0.17)(3) perovskite layers were analyzed regarding their surface roughness, microscopic structure, local and overall composition, and optoelectronic properties. Application of these films in p-i-n perovskite solar cells (PSCs) with indium-doped tin oxide/NiOx/perovskite/C-60/bathocuproine/Cu architecture resulted in up to 15.3 and 17.0% power conversion efficiency for the flat and wrinkled morphology, respectively. Interestingly, we find slightly red-shifted photoluminescence (PL) peaks for wrinkled areas and we are able to directly correlate surface topography with PL peak mapping. This is attributed to differences in the local grain size, whereas there is no indication for compositional demixing in the films. We show that the perovskite composition, crystallization kinetics, and layer thickness strongly influence the formation of wrinkles which is proposed to be related to the release of compressive strain during perovskite crystallization. Our work helps us to better understand film formation and to further improve the efficiency of PSCs with widely used mixed-perovskite compositions.
Y1  - 2018
U6  - https://doi.org/10.1021/acs.jpcc.8b06459
SN  - 1932-7447
SN  - 1932-7455
VL  - 122
IS  - 30
SP  - 17123
EP  - 17135
PB  - American Chemical Society
CY  - Washington
ER  -