Investigations on Thermal Transitions in PDPP4T/PCPDTBT/AuNPs Composite Films Using Variable Temperature Ellipsometry

Polymers, Journal Year: 2025, Volume and Issue: 17(5), P. 704 - 704

Published: March 6, 2025

Herein, we report a comprehensive investigation on the thermal transitions of thin films poly [2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione -3,6-diyl)-alt-(2,2';5',2″;5″,2'″-quaterthiophen-5,5'″-diyl)]PDPP4T, poly[2,6-(4,4-bis-(2-ethy-lhexyl)-4H-cyclopenta [2,1-b;3,4-b']dithiophene)-alt-4,7(2,1,3-benzothiadiazole)] PCPDTBT, 1:1 blend PDPP4T and their composites with gold nanoparticles (AuNPs). The these materials were studied using variable temperature spectroscopic ellipsometry (VTSE), differential scanning calorimetry (DSC) serving as reference method. Based obtained VTSE results, for first time, have determined phase diagrams PDPP4T/PCPDTBT AuNPs composites. measurements revealed distinct in films, including characteristic temperatures corresponding to pure phases PCPDTBT within blends. These markedly different compared neat materials, highlighting unique interactions between polymer matrix AuNPs. Additionally, explored optical properties, surface morphology, crystallinity materials. We hypothesize that observed variations transitions, well improvement properties crystallinity, are likely influenced by localized plasmon resonance (LSPR) passivation phenomena induced composite films. findings could important implications design optimization optoelectronic applications.

Language: Английский

Organic N-hydroxyphthalimide catalyzes the selective aerobic oxidation of hydrocarbons promoted by the nonionic surfactants through hydrogen bonding effect

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 580, P. 115110 - 115110

Published: April 16, 2025

Language: Английский