Work

Nanointerface Insights in PVDF Films with Low Loading of Nitrogen-Doped Carbon Dots for High Energy Density Storage and Harvesting

Year: 2025

Type: article

Abstract: This work demonstrates the enhancement of the electroactive phase of the nanocomposite, resulting in a high energy density storage and piezoelectricity. Low loading (≤1 wt %) of synthesized nitrogen-doped carbon dots (N-CDs) reinforced in poly(vinylidene fluoride) (PVDF) accelerated the formation of electroactive phases with conformational changes in the polymer chain. The addition of 1 wt % N-CDs to the PVDF polymer matrix increased the dielectric constant by 2.18 times, and the maximum polarization reached a multiplication of 2.32 compared to pure PVDF films. Moreover, a 1.62 times enhancement in the piezoelectric coefficient d 33 resulted in a voltage sensitivity of 22.28 mV/N for as low as 1% filler reinforcement. The simulation results further confirmed the increase in dielectric constant and piezoelectric coefficient. The N-CD-integrated PVDF films are promising candidates for energy storage and harvesting applications.

Source: ACS Applied Electronic Materials

DOI: 10.1021/acsaelm.4c01882

Authors: Vishwa Pratap Singh, Akhilesh Kumar Singh, Mustafa Ordu

Institutions: Bilkent University, National Nanotechnology Research Center, Indian Institute of Technology BHU, Universidad Nacional Autónoma de México, Banaras Hindu University

Language: English

Topic: Dielectric materials and actuators

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

OpenAlex ID: W4407103190

FWCI: 2.608

Cites: 68

Cited by: 11

Related to: 10