From homochiral assembly to heterochiral assembly: a leap in charge transport properties of binaphthol-based axially chiral materials

Ming Chen, Xuechen Jiao, Jing Li, Wenting Wu, Hanshen Xin, Christopher R. McNeill, Xike Gao

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

Chirality, as a fundamental symmetry property, plays an important role in molecular assembly in the solid state, impacting upon the properties and performance of organic materials. Here, heterochiral assembly was observed upon a binaphthol-based axially chiral material in the thin film state, where the heterochiral assemblies of racemic mixtures exhibit superior crystallization behavior and film morphologies than their homochiral counterparts. Additionally, a dramatic increase (nearly 2 orders of magnitudes) in electronic mobility was obtained upon switching the active layers of organic thin-film transistors from homochiral assemblies to heterochiral assemblies. This work not only gives insights into the structure-aggregation property relationships of axially chiral self-assemblies but also offers new opportunities for novel organic soft materials.

Original languageEnglish
Pages (from-to)6188-6195
Number of pages8
JournalLangmuir
Volume35
Issue number18
DOIs
Publication statusPublished - 7 May 2019

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