Tuning of Optoelectronic Properties in Oligo(phenyleneethynylene)-Based Cocrystals through Modulation of Charge-Transfer Interactions.

ABSTRACT: Organic multicomponent cocrystals with semiconducting properties have gained wide interest due to their potential in solid-state optoelectronic applications. Herein, we report the design and synthesis of an oligo-(phenyleneethynylene) (OPE) derivative and its cocrystals with 2,3,5,6-tetrachloroterephthalonitrile (TCPN) and 1,2,4,5-tetracyanobenzene (TCNB) to explore the optical properties and charge-transfer interactions. The optical property of the charge-transfer cocrystals was dependent on the in-crystal geometry of luminophore OPE and charge-transfer interactions. The study also explored the role of molecular packing and intermolecular interactions on photoluminescence properties in the crystalline state of OPE, OPE-TCPN, and OPE-TCNB using structural data obtained from single-crystal

SUBMITTER: Kuttiyullathil S 

PROVIDER: S-EPMC12612889 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature