We report a photorechargeable supercapacitor that can convert solar energy to chemical energy and store it. The supercapacitor is composed of indium tin oxide branched nanowires (ITO BRs) and poly(3-hexylthiophene) (P3HT) semiconducting polymers. ITO BRs showed electrical double layer capacitive characteristics that originated from the unique porous and self-connected network structure. The hybrid structure of ITO BR/P3HT exhibited spontaneous light harvesting, energy conversion, and charge storage. As a result, photocharging/discharging of ITO BR/P3HT showed an areal capacitance of 2.44 mF/cm at a current density of 0.02 mA/cm. The proof-of-concept photorechargeable device, composed of ITO BRs, ITO BR/P3HT, and NaSO/polyvinyl acetate gel electrolyte, generated a photovoltage as high as 0.28 V and stored charge effectively for tens of seconds. The combination of dual functions in a single hybrid material may achieve breakthrough advances.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acsami.1c05241 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Artemisinin-Quinidine Combination for Suppressing Ventricular Tachyarrhythmia in an Ex Vivo Model of Brugada Syndrome.
J Korean Med Sci
January 2025
Division of Cardiology, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
Background: The ionic mechanism underlying Brugada syndrome (BrS) arises from an imbalance in transient outward current flow between the epicardium and endocardium. Previous studies report that artemisinin, originally derived from a Chinese herb for antimalarial use, inhibits the Ito current in canines. In a prior study, we showed the antiarrhythmic effects of artemisinin in BrS wedge preparation models.
View Article and Find Full Text PDFUnraveling the Photovoltage Formation Mechanism in Indium-Tin Oxide Branched Nanowires/Poly(3-Hexylthiophene) Photorechargeable Supercapacitors.
ACS Appl Mater Interfaces
July 2024
Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
Photorechargeable supercapacitors are promising next-generation renewable energy storage devices. Previously, a hybrid structure consisting of indium-tin oxide branched nanowires (ITO BRs) and poly(3-hexylthiophene) (P3HT) was demonstrated as a photorechargeable supercapacitor. However, the formation mechanism of photovoltage has not been studied.
View Article and Find Full Text PDFWhole-heart computational modelling provides further mechanistic insights into ST-elevation in Brugada syndrome.
Int J Cardiol Heart Vasc
April 2024
Department of Cardiology and Angiology, University Heart Center Freiburg - Bad Krozingen, and Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Article Synopsis
- Brugada syndrome (BrS) is associated with abnormal heart rhythms, particularly ST-elevations in specific leads, increasing the risk of sudden cardiac death, and understanding its mechanisms can be aided by computational modeling.
- Researchers tested two main hypotheses—'delayed depolarization' and 'early repolarization'—using a 3D whole-heart computational model that simulated different ionic changes affecting the heart's electrical activity.
- Results showed that realistic coved-type ST-elevation, characteristic of BrS, was only produced by delayed epicardial depolarization, supporting the depolarization hypothesis and suggesting early repolarization does not play a significant role in the ECG changes observed in BrS.
Phase 2 Re-Entry Without I: Role of Sodium Channel Kinetics in Brugada Syndrome Arrhythmias.
JACC Clin Electrophysiol
December 2023
Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA. Electronic address:
Background: In Brugada syndrome (BrS), phase 2 re-excitation/re-entry (P2R) induced by the transient outward potassium current (I) is a proposed arrhythmia mechanism; yet, the most common genetic defects are loss-of-function sodium channel mutations.
Objectives: The authors used computer simulations to investigate how sodium channel dysfunction affects P2R-mediated arrhythmogenesis in the presence and absence of I.
Methods: Computer simulations were carried out in 1-dimensional cables and 2-dimensional tissue using guinea pig and human ventricular action potential models.
Fenoxycarb, a carbamate insect growth regulator, inhibits brassinosteroid action.
J Pestic Sci
August 2023
Department of Bioscience, Tokyo University of Agriculture.
Brassinosteroids (BRs) are steroid hormones that regulate plant growth, development, and stress resistance. In this study, we evaluated the effect of agrochemicals on dark-induced hypocotyl elongation, which is regulated by BRs, to identify novel chemicals that regulate BR action. We found that the juvenile hormone agonist fenoxycarb inhibited dark-induced hypocotyl elongation in .
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!