Mussel-Inspired Two-Dimensional Halide Perovskite Facilitated Dopamine Polymerization and Self-Adhesive Photoelectric Coating

Abstract

Polydopamine (PDA) is a good adhesion agent for lots of gels inspired by the mussel, whereas hybrid organic–inorganic perovskites (HOIPs) usually exhibit extraordinary optoelectronic performance. Herein, mussel-inspired chemistry has been integrated with two-dimensional HOIPs first, leading to the preparation of new crystal (HDA)2PbBr4 (1) (DA = dopamine). The organic cation dopamine can be introduced into PDA resulting in a thin film of (HPDA)2PbBr4 (PDA-1). The dissolved inorganic components of layered perovskite in DMF solution together with H2O2 addition can facilitate DA polymerization greatly. More importantly, PDA-1 can inherit an excellent semiconductor property of HOIPs and robust adhesion of the PDA hydrogel resulting in a self-adhesive photoelectric coating on various interfaces.

Dopant effect on the optical and thermal properties of the 2D organic–inorganic hybrid perovskite (HDA)2PbBr4

“…Their first decomposition starts at 280 °C with a weight loss around 57%, which might be attributed to the volatilization of two (C 8 H 12 NO 2 )Br per formula (56.06% in theory for 1 ). 27…”

“…The cation can be polymerized resulting in a self-adhesive photoelectric coating (HPDA) 2 PbBr 4 . 27 Through doping, (HDA) 2 PbBr 4 is expected to have richer optical properties, further facilitating interdisciplinary research.…”

A cyclometalated Pt(ii)–Pt(ii) clamshell dimer with a triplet emission at 887 nm

“…15 Furthermore, Wu et al reported a cis-bis(2-phenylpyridine) platinum(II) complex (Pt( ppy) 2 ), which was produced by a one-pot method. 16 This complex showed intensive red and deep-red phosphorescence with lifetimes longer than 1.92 μs and quantum yields higher than 70%. It was used in the fabrication of electroluminescent (EL) devices and for cell imaging.…”

“…34 Type one contains a bidentate ligand and two monodentate ligands. 35 Type two contains two bidentate ligands 16 and type three contains a tridentate ligand and a monodentate ligand. 36 Furthermore, type four contains four monodentate ligands and type five contains one single tetradentate ligand.…”

Optical Property Regulation through Host–Guest Interaction in a Zero-Dimensional Zr Chloride

“…Halide perovskites have become a research hotspot in fields such as chemistry, physics, and materials due to their excellent photoelectric properties, including long carrier diffusion lengths, low trap densities, tunable band gaps, and high photoluminescence quantum yields (PLQYs). − According to their structural connectivity, perovskites can be classified into zero-dimensional (0D), one-dimensional, two-dimensional, and three-dimensional. 0D halide perovskites with isolated metal halide octahedra have received widespread attention due to their efficient broadband emission attributed to self-trapped exciton (STE) emission. , On the other hand, 0D halide perovskites can adopt various organic cation and guest metal ions, which can tune emissions as desired. − …”