98%
921
2 minutes
20
We prepared organic polymer poly-3-hexylthiophene (p3ht) nanoparticles (NPs) and graphene oxide (GO)/reduced graphene oxide (RGO) composites p3ht NPs-GO/RGO by using the reprecipitation method. We demonstrated that GO/RGO could improve the ordering and planarity of p3ht chains as well as the formation of p3ht NPs, and confirmed the effects of GO/RGO on the fluorescence and carrier transport dynamics of p3ht NPs by using femtosecond fluorescence upconversion and transient absorption (TA) techniques. Ultrafast electron transfer (∼1 ps) between GO/RGO and p3ht NPs quenched the fluorescence of p3ht NPs, indicating excellent properties of p3ht NPs-GO/RGO as the charge transfer complexes. Efficient electron transfer may promote the applications of p3ht NPs-GO/RGO composites in organic polymer solar cells and photocatalysis. Moreover, RGO had stronger interfacial interactions and more matched conduction band energy levels with p3ht NPs than GO did, which implied that p3ht NPs-RGO might have greater application values than p3ht NPs-GO.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/chem.202300025 | DOI Listing |
Molecules
June 2025
Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Hokkaido, Japan.
Conjugated polymer nanoparticles (CP NPs) attract attention as nanoscale materials used for a variety of applications. In relation to this, the internal structure of CP NPs is an important factor for their properties, and numerous investigations have been carried out to control their nanomorphology. Here, we report the formation of CP NPs from defect-free cyclic poly(3-hexylthiophene) (-P3HT) using a microfluidic device, and the effect of polymer topology on their structural and solvatochromic properties was investigated.
View Article and Find Full Text PDFACS Appl Mater Interfaces
April 2025
Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
Organic semiconducting nanoparticles (NPs) have been attracting increasing attention for their diverse applications in biotechnology, especially as photoactive materials for spatially controlled optical modulation of living-cell functions. Different approaches to optimize their efficacy and reliability have been recently attempted, including control of photophysical/-chemical properties, ad hoc tailoring of materials synthesis, and functionalization with biological moieties. Another promising strategy is offered by the realization of composite light-sensitive NPs, with a supramolecular architecture.
View Article and Find Full Text PDFSci Rep
March 2025
ESCs Research Lab, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
Nanofibers based on polyvinylidene fluoride-trifluoroethylene/poly(3-hexylthiophene) (P(VDF-TrFE)/P3HT) containing copper oxide nanoparticles (CuO NPs) were fabricated using the electrospinning technique. Scanning electron microscope (SEM) images revealed smooth, bead-free solid nanofibers of 34-100 nm diameters. X-ray diffraction (XRD) analysis shows the ferroelectric β phase of P(VDF-TrFE) with a wide diffraction pattern.
View Article and Find Full Text PDFSci Rep
January 2024
Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18a Konarskiego Str., 41-100, Gliwice, Poland.
The results of studies on the influence of zinc oxide nanoparticles (ZnO-NPs) on the structural, thermal and optical properties of thin films of mixtures of phenyl-C71-butyric acid methyl ester (PCBM) with poly[3-hexylthiophene] (P3HT) of various molecular weights are described in this article. The structural properties of the layers of: polymers, mixtures of polymers with fullerenes and their composites with ZnO-NPs were investigated using X-ray diffraction. Whereas their glass transition temperature and optical parameters have been determined by temperature-dependent spectroscopic ellipsometry.
View Article and Find Full Text PDFChem Mater
May 2023
Instituto de Carboquímica (ICB-CSIC), E-50011 Zaragoza, Spain.