Effects of temperature and coating speed on the morphology of solution-sheared halide perovskite thin-films

Cited 8 time in webofscience Cited 0 time in scopus
  • Hit : 178
  • Download : 0
In this work, we have conducted a systematic study of the crystallization of perovskite thin-films during solution-shearing to elucidate how parameters such as substrate temperature and coating speed influence the morphology of the thin-film. Four distinct phases are identified and a morphological phase map is constructed. The formation of these phases is attributed to a delicate balance between the degree and rate of supersaturation and the flux of solution supply to the meniscus line, which dictates the nucleation and the crystal growth process. An optimal phase window is identified and the photovoltaic device under the chosen conditions exhibits a power conversion efficiency over 15%, which is comparable to that of a reference device prepared by the conventional spin-coating process. Furthermore, a large area perovskite film of 57 cm2 is prepared. Small-area devices from different locations within the large-area film show uniform efficiencies with a deviation coefficient of 4.2%, demonstrating the high uniformity of the thin-film.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2018-11
Language
English
Article Type
Article
Citation

JOURNAL OF MATERIALS CHEMISTRY A, v.6, no.48, pp.24911 - 24919

ISSN
2050-7488
DOI
10.1039/C8TA08565J
URI
http://hdl.handle.net/10203/250017
Appears in Collection
EEW-Journal Papers(저널논문)MS-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 8 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0