Continuous production of ultrathin organic–inorganic Ruddlesden–Popper perovskite nanoplatelets via a flow reactor. Issue 30 (23rd July 2021)

• Record Type: Journal Article
• Authors: Biesold, Gill M.; Liang, Shuang; Wagner, Brent K.; Kang, Zhitao; Lin, Zhiqun
• Is Part Of: Nanoscale. Volume 13:Issue 30(2021)
• Page Start: 13108
• Page End: 13115
• Publication Date: 2021-07-23
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d1nr03239a
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Continuous production of ultrathin Ruddlesden–Popper perovskite nanoplatelets using a flow reactor. Abstract : Because of their enhanced quantum confinement, colloidal two-dimensional Ruddlesden–Popper (RP) perovskite nanosheets with a general formula L2 [ABX3 ] n −1 BX4 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 L2 PbX4 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.