INS4-0311
Control of the assembly structure in conjugated polymer nanoparticles, shifting from parallel to intersecting backbone stacking to enhance charge transferr
Topic
S4. Colloids, Interfaces, and Molecular Assemblies for Functional Soft Materials
When and Where
Oct 1, 2026
11:10 - 11:35
Room 106
Session Chairs
Jae Bem YOU
Presenter(s)
JU HYUN PARK (Chung-Ang University)
Co-Author(s)
Abstract
Nanoparticles of conjugated polymers dispersed in aqueous solution play a significant role as photothermal, photodynamic materials in cancer treatment, photocatalytic materials for carbon dioxide conversion and hydrogen production in renewable energy generation, and materials for waste decomposition and air purification through reactive oxygen species in environmental remediation. The efficiency in each application area is determined by the ability of conductive polymers to effectively transfer charge to the exterior of the particles after absorbing light through the charge transfer pathway. This transfer efficiency is directly influenced by the assembly structure of the conjugated polymers within the particles. We present research findings on how the aggregation state of two types of conjugated polymer materials, characterized as electron donors and electron acceptors, assembled within a single nanoparticle influence on their ability to transfer charge externally after light absorption. Specifically, it demonstrates that when the donor-type conjugated polymer and the acceptor-type conjugated polymer are intersected in a diamond shape, the charge transfer efficiency to the outside significantly increases compared to when they are stacked in parallel.
