Achieving high circularly polarized luminescence with push–pull helicenic systems: from rationalized design to top-emission CP-OLED applications

Abstract

While the development of chiral molecules displaying circularly polarized luminescence (CPL) has received considerable attention, the corresponding degree of CPL intensity, glum, hardly exceed 10-2 at the molecular level owing...

Chiral exciplex dyes showing circularly polarized luminescence: extension of the excimer chirality rule

“…Circularly polarized luminescence (CPL) organic dyes are recognized to be next-generation materials, 1 and their development has been a recent focus of research. 2 To develop CPL dyes, connecting two of the same aromatic luminophores, which can form an excimer (excited homodimer), to a chiral unit is one of the main approaches because these luminophores often emit with high quantum yields and large Stokes shifts.…”

Two‐Dimensional Chiral Polyrotaxane Monolayer with Emergent and Steerable Circularly Polarized Luminescence

“…[3] As a chirality-related excited-state property, circularly polarized luminescence (CPL) [4] has recently attracted great attention owing to its promising applications as chiroptical functional materials in advanced optical displays, circularly polarized organic light-emitting diodes (CP-OLEDs), high-density information storage and bioencoding, and so on. [5] To date, however, CPL 2D nanomaterials were narrowly focused on the inorganic categories of chiral perovskites and carbon dots. [2a, 6] Even though chiral organic systems like chiral macromolecules or supramolecular polymers have been realized through the well-established covalent and noncovalent synthesis approaches, [7] CPL-active 2D polymers were still rarely reported.…”

Molecular design to enhance binaphthyl-based chiroptics using organoboron chemistry in isomeric chiral scaffolds

“…Attempts to obtain such compounds have resulted in large g lum values in the past, and the conceptually more universal design strategy is therefore highly expected to correlate their molecular structures and overall CPL behaviours. 1–3…”