Mixed 1D/0D Structures of Chiral Hybrid Lead Halides with an l-Nicotinium Spacer Exhibit Broadband Photoluminescence and Polarized Emission.

Hybrid lead halide materials have been highly studied for optoelectronics, but their use with chiral organics in chiro-optoelectronics remains limited. Understanding the ability to impart chirality into bulk materials by incorporating a chiral precursor is of great interest due to unique optical properties directly arising from chirality such as circular dichroism, optical rotatory dispersion, and circularly polarized luminescence. Herein, we used protonated l-nicotine (L-n) (nicotinium cations) as a spacer and templated a variety of structures including a series of (L-n)MX (M = Sn, Pb; X = Cl, Br, I) that take space group 6 in which the lead halide regions template two distinct moieties, both a 1D chain motif and a 0D cluster motif.