In this research, monocrystalline gallium oxide (Ga₂O₃) nanobelts were synthesized through oxidation of metal gallium at high temperature. An electronic device, based on an individual Ga₂O₃ nanobelt on Pt interdigital electrodes (IDEs), was fabricated to investigate the electrical characteristics of the Ga2O3 nanobelt in a dry atmosphere at room temperature. The current-voltage (I-V) and I/V-t characteristics show the capacitive behavior of the Ga₂O₃ nanobelt, indicating the existence of capacitive elements in the Pt/Ga₂O₃/Pt structure.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455499 | PMC |
http://dx.doi.org/10.3390/ma8085244 | DOI Listing |
Heliyon
February 2025
Technical University of Sofia, Dept. of Electronics, 8 Kliment Ohridski Blvd, 1756, Sofia, Bulgaria.
In this paper, it is integrated a piezoelectric energy harvester and a supercapacitor storage device on a flexible substrate with a connection through an innovative alternative current (AC) to direct current (DC) boosting power management system for wearable biosensors' power supply. Flexible substrates can conform to irregular surfaces or shapes, enabling energy harvesting and storage devices to be integrated into a variety of form factors, including curved or bendable surfaces. Having an integrated energy harvester and storage system ensures a reliable and portable power source, providing power autonomy.
View Article and Find Full Text PDFNano Lett
March 2025
Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
Borophene, a semimetallic Dirac material with exceptional mechanical and electronic properties, shows great energy storage potential but requires conductive substrates for stability. A strategy for fabricating flexible and conductive rGO-supported borophene supercapacitor electrodes is proposed, featuring a layered assembly of borophene nanosheets sandwiched between rGO layers. This architecture prevents rGO nanosheet restacking, maintaining interlayer spacing at 5.
View Article and Find Full Text PDFMaterials (Basel)
February 2025
School of Civil Engineering, Chongqing University, Chongqing 400045, China.
A novel hollow capacitive wind pressure sensor is for the first time proposed. The sensing element of the proposed sensor uses a non-parallel plate variable capacitor, whose movable electrode plate uses a transversely uniformly loaded annular conductive membrane with a fixed outer edge and a rigid inner edge (acting as the wind pressure sensitive element of the sensor). Due to the unique hollow configuration of the proposed sensor, it can be used alone to detect the pressure exerted by fast-moving air in the atmosphere or by fast-moving air or gas, etc.
View Article and Find Full Text PDFJ Am Chem Soc
March 2025
College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China.
The complex charge storage mechanisms in aqueous MnO-based supercapacitors have posed significant challenges to a comprehensive understanding of their chemical behavior. In this study, we employed Au-core@MnO-shell nanoparticle-enhanced Raman spectroscopy, alongside electrochemical analysis and X-ray absorption, to systematically investigate the competitive charge storage chemistry of protons and cations within the inner and outer layers of δ-MnO under alkaline conditions. Our findings reveal that δ-MnO operates through a dual mechanism: the intercalation and deintercalation of metal cations dominate charge storage in the inner layer, while surface chemisorption of protons governs the outer layer.
View Article and Find Full Text PDFACS Omega
March 2025
CENIMAT|I3N, Materials Science Department, NOVA School of Science and Technology, (NOVA FCT) University of Lisbon, 2829-516 Caparica, Portugal.
Recently, a novel class of emerging 2D materials identified as MXene have been revolutionizing the fabrication and development of flexible energy storage systems, i.e., batteries and supercapacitors.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!