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Title: Continuous production of ultrathin organic–inorganic Ruddlesden–Popper perovskite nanoplatelets via a flow reactor
Because of their enhanced quantum confinement, colloidal two-dimensional Ruddlesden–Popper (RP) perovskite nanosheets with a general formula L 2 [ABX 3 ] n −1 BX 4 stand as a promising narrow-wavelength blue-emitting nanomaterial. Despite ample studies on batch synthesis, for RP perovskites to be broadly applied, continuous synthetic routes are needed. Herein, we design and optimize a flow reactor to continuously produce high-quality n = 1 RP perovskite nanoplatelets. The effects of antisolvent composition, reactor tube length, precursor solution injection rate, and antisolvent injection rate on the morphology and optical properties of the nanoplatelets are systematically examined. Our investigation suggests that flow reactors can be employed to synthesize high-quality L 2 PbX 4 perovskite nanoplatelets ( i.e. , n = 1) at rates greater than 8 times that of batch synthesis. Mass-produced perovskite nanoplatelets promise a variety of potential applications in optoelectronics, including light emitting diodes, photodetectors, and solar cells.  more » « less
Award ID(s):
1914713
PAR ID:
10323286
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Nanoscale
Volume:
13
Issue:
30
ISSN:
2040-3364
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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