Work

Chiral supramolecular electronics for high‐efficiency circularly polarized organic light‐emitting diodes

Year: 2026

Type: article

Abstract: The integration of chirality into organic semiconductors has long been pursued due to its potential to facilitate circularly polarized light emission, with significant implications for advanced displays, quantum information processing, and spintronics. However, the simultaneous attainment of a high dissymmetry factor and elevated efficiency in circularly polarized organic light‐emitting diodes presents a fundamental challenge. In the recent work, Chowdhury et al. introduce a paradigm‐shifting approach through the supramolecular engineering of chiral electronic structures ( Science , 2025, 387, 1175–1181). This was achieved through in situ chiral crystallization of triazatruxene derivatives, driven by thermally activated nanophase segregation in vacuum‐deposited thin films. The resulting films deliver notable electroluminescence (EL), characterized by a high EL dissymmetry factor ( g EL ≈ 0.12) and an external quantum efficiency ( EQE ≈ 16%). This research establishes a novel platform for chiral optoelectronics by generating band‐level chirality through effective supramolecular organization.

Source: FlexMat.

DOI: 10.1002/flm2.70056

Authors: Xiang‐Chun Li, Qian Xue, Fang Liu, Wen‐Yong Lai

Institution: Nanjing University of Posts and Telecommunications

Language: English

Topic: Organic Light-Emitting Diodes Research

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond