POS7-0695
Synthesis of Polypeptide-Coated Copper(II) Chloride Hydroxide and Its Application to Heterojunction Films
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Junhyeong Im (Dong-Eui University)
Co-Author(s)
Abstract
In recent years, the development of functional hybrid nanomaterials has attracted significant attention due to their potential applications in electronics, optoelectronics, and energy conversion systems. Among these, copper(II) chloride hydroxide materials offer unique electrochemical and optical properties, yet their practical utilization is often limited by structural instability and poor interfacial compatibility. To address these challenges, this study demonstrates a facile and scalable synthetic route for the preparation of polypeptide-coated copper(II) chloride hydroxide materials and explores their subsequent application in high-performance heterojunction films.
The polypeptide coating was systematically introduced onto the surface of pre-synthesized copper(II) chloride hydroxide materials via a controlled self-assembly process. The introduction of the biopolymer layer not only effectively prevents the structural degradation of the copper(II) chloride hydroxide core but also introduces functional amino acid side chains that facilitate seamless interfacial binding. Comprehensive characterization, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (FE-SEM), confirmed the successful encapsulation of the polypeptide layer without altering the intrinsic crystalline phase of the underlying copper hydroxide.
Furthermore, the synthesized polypeptide-coated copper(II) chloride hydroxide materials were successfully fabricated into thin heterojunction films via a solution-processing method. The resulting films exhibited excellent uniformity and enhanced mechanical flexibility compared to pristine copper(II) chloride hydroxide films. This research underscores the viability of exploiting biomacromolecular coatings to engineer inorganic nanostructures, offering an eco-friendly and highly effective strategy for the structural and electronic optimization of heterojunction-based devices.
The polypeptide coating was systematically introduced onto the surface of pre-synthesized copper(II) chloride hydroxide materials via a controlled self-assembly process. The introduction of the biopolymer layer not only effectively prevents the structural degradation of the copper(II) chloride hydroxide core but also introduces functional amino acid side chains that facilitate seamless interfacial binding. Comprehensive characterization, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and scanning electron microscopy (FE-SEM), confirmed the successful encapsulation of the polypeptide layer without altering the intrinsic crystalline phase of the underlying copper hydroxide.
Furthermore, the synthesized polypeptide-coated copper(II) chloride hydroxide materials were successfully fabricated into thin heterojunction films via a solution-processing method. The resulting films exhibited excellent uniformity and enhanced mechanical flexibility compared to pristine copper(II) chloride hydroxide films. This research underscores the viability of exploiting biomacromolecular coatings to engineer inorganic nanostructures, offering an eco-friendly and highly effective strategy for the structural and electronic optimization of heterojunction-based devices.
