A Sustainable Hydroxypropyl Cellulose-Nanodiamond Composite for Flexible Electronic Applications

Designing fully green materials for flexible electronics is an urgent need due to the growing awareness of an environmental crisis. With the aim of developing a sustainable, printable, and biocompatible material to be exploited in flexible electronics, the rheological, structural and charge transpor...

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Bibliographic Details
Published in:Gels 2022-11, Vol.8 (12), p.783
Main Authors: Palmieri, Elena, Pescosolido, Francesca, Montaina, Luca, Carcione, Rocco, Petrella, Greta, Cicero, Daniel Oscar, Tamburri, Emanuela, Battistoni, Silvia, Orlanducci, Silvia
Format: Article
Language:English
Subjects:
Aqueous solutions
Biocompatibility
Biomedical materials
Carbon
Cellulose
cellulose derivatives
Chain entanglement
Charge transport
Cultural heritage
Detonation
Diamonds
Electric properties
Electrochemical impedance spectroscopy
Electronics
Entanglement
Flexible components
flexible electronics
Hydroxypropyl cellulose
Investigations
Ion currents
Morphology
Nanocomposites
nanodiamond
Nanoparticles
Nanostructure
NMR
Nuclear magnetic resonance
Pharmaceutical industry
polymer nanocomposite
Rheological properties
Rheology
Surface chemistry
Transport properties
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Summary:Designing fully green materials for flexible electronics is an urgent need due to the growing awareness of an environmental crisis. With the aim of developing a sustainable, printable, and biocompatible material to be exploited in flexible electronics, the rheological, structural and charge transport properties of water-based hydroxypropyl cellulose (HPC)-detonation nanodiamond (DND) viscous dispersions are investigated. A rheological investigation disclosed that the presence of the DND affects the orientation and entanglement of cellulose chains in the aqueous medium. In line with rheological analyses, the NMR diffusion experiments pointed out that the presence of DND modifies the hydrodynamic behavior of the cellulose molecules. Despite the increased rigidity of the system, the presence of DND slightly enhances the ionic conductivity of the dispersion, suggesting a modification in the charge transport properties of the material. The electrochemical analyses, performed through Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS), revealed that the HPC-DND system is remarkably stable in the explored voltage range (-0.1 to +0.4 V) and characterized by a lowered bulk resistance with respect to HPC. Such features, coupled with the printability and filmability of the material, represent good requirements for the exploitation of such systems in flexible electronic applications.
ISSN:2310-2861
2310-2861
DOI:10.3390/gels8120783