Chiral-perovskite optoelectronics

Abstract

Hybrid organic-inorganic perovskites (HOIPs) offer long carrier diffusion lengths, high absorption coefficients, tunable bandgaps and long spin lifetimes. The flexible crystal structure and ionic nature of HOIPs makes it possible to allow tune their material properties through rational design, including the incorporation of chiral organic ligands. Recently, chiral HOIPs have emerged as promising materials for chiroptoelectronics, spintronics and ferroelectricity. They exhibit high photoluminescence polarization (17% without an external magnetic field), good device performance (a circularly polarized photodetector had 100 times higher responsivity than one based on chiral metasurface) and high saturated polarization (~2 times higher than that of barium titanate). Here we review the latest advances in chiral HOIPs and investigate the specific benefits of combining chiral organic and inorganic components in perovskites. We discuss demonstrations of chiroptical and ferroelectric applications, and conclude with our perspective on the future opportunities for chiral HOIPs.

Organic-to-inorganic structural chirality transfer in a 2D hybrid perovskite and impact on Rashba-Dresselhaus spin-orbit coupling

“…These structural insights, coupled with theoretical findings in our work, enable the discovery and design of an emerging class of multifunctional hybrid systems with an amalgam of semiconducting, chiroptical, and spin-dependent properties. Indeed, the combination of chiral induced spin selectivity of chiral organic molecules [56][57][58][59][60][61][62] and an intrinsic RD spin-splitting in the inorganic framework is a hitherto unexplored aspect unique to 2D chiral HOIPs and might have practical implications in future HOIP-based spintronics. Further, the structural chirality transfer and ensuing lowering of symmetry within the inorganic sublattice opens up a gateway to other emergent properties such as nonlinear light-matter interactions and piezo-/ferroelectricity, not just in 2D HOIPs but also in related diverse low-dimensional metal halide hybrids.…”

Photoredox Organic Synthesis Employing Heterogeneous Photocatalysts with Emphasis on Halide Perovskite

“…In fact, ac hiral organoammonium As ite-based chiral perovskite has been provena nd largely reportedi np erovskite solar cells and optoelectronics. [119] Chiral perovskite NCs are also reported. [120] Photoinduced charge transfer occurs only if the organic substrates approach the perovskite photocatalysts surface,b ut ac hiral perovskite surface may lead to ad iscrimination for a preferred pro-chiral intermediate configuration, finally resulting in ad irectp hotocatalytic asymmetric organic synthesis.…”

Direct detection of circular polarized light in helical 1D perovskite-based photodiode

“…Lead halide perovskites have been synthesized by using chiral ligands like 1-phenylethlamine (1-PEA + ), resulting in formation of a chiral structure as zero-dimensional (0D), 1D, 2D, quasi-2D, and 3D (12,13). The first structural report for 1D and 2D chiral perovskites was presented as a single crystal by Billing et al (14,15) in 2013.…”