1 research outputs found
Growth of van der Waals Halide Perovskites within the Interlayer Spacings of Mica
Two-dimensional hybrid organic–inorganic perovskites
(2D-HOIPs)
have been extensively researched for use in solar cells as well as
optoelectronic devices over the past few years. Controllable growth
of single-crystalline 2D-HOIP thin films has been regarded as a key
component for the development of high-performance end devices. Here,
we report a solution-based method for the growth of 2D-HOIPs using
muscovite mica as a van der Waals substrate that yields millimeter-scale
perovskite flakes. Interestingly, the grown 2D-HOIP flakes lie embedded
within the interlayer spacings of muscovite mica. We find that such
2D-HOIP flakes buried in mica demonstrate enhanced photostability
in comparison to conventional 2D-HOIP flakes. Such liquid-phase growth
in the interlayer spacings of van der Waals substrates opens a new
avenue for developing novel material structures for designing optoelectronic
devices