Based on the composite consisting of ZnO nanorods (NRs) grown on InGaN/GaN multiple quantum wells (MQWs), we have demonstrated a novel light-emitting device (LED) that has the capability to emit dual beam radiations. Interestingly, the relative intensity between the dual emissions is able to be manipulated by their polarizations. The underlying mechanism can be well understood in terms of the anisotropic optical properties arising from the geometric structures of constituent nanoscale materials. The results shown here may be extended to many other nanocomposite systems and pave a new pathway to create LEDs with tunable properties.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.20.00A270 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis and performance evaluation of ZnO/CdS photoanodes with copper sulfide (CuS) and carbon counter electrodes.
Sci Rep
December 2024
Advanced Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, Maharashtra, 411007, India.
The present study demonstrates the synthesis of compact ZnO layers using CdS sensitized on ZnO as a photoanode with copper sulfide (CuS) and carbon as a counter electrode (CE). In this study, a compact ZnO layer was fabricated using the simple and low-cost successive ionic layer adsorption and reaction (SILAR) method, and CuS CE films were synthesized using the chemical bath deposition method. Various characterizations, such as X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), confirmed the formation of ZnO and CdS sensitizations on the ZnO .
View Article and Find Full Text PDFEnhanced degradation of Ciprofloxacin (CIP) antibiotic and methylene blue (MB) dye using ZnO/GO nanocomposites under solar irradiation.
Sci Rep
December 2024
Department of Physics, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia.
Modifying ZnO nanorods with graphene oxide (GO) is crucial for enhancing photocatalytic degradation by boosting the concentration of reactive oxygen species (ROS) in the reaction medium. In this study, we present a straightforward chemical synthesis of ZnO nanorods embedded on GO, forming a novel nanocomposite, GOZ. This composite serves as an efficient photocatalyst for the sunlight-driven degradation of methylene blue (MB) and ciprofloxacin (CIP).
View Article and Find Full Text PDFRole of en-APTAS Membranes in Enhancing the NO Gas-Sensing Characteristics of Carbon Nanotube/ZnO-Based Memristor Gas Sensors.
Biosensors (Basel)
December 2024
Department of Semiconductor Systems Engineering, Convergence Engineering for Intelligent Drone, Institute of Semiconductor and System IC, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea.
NO is a toxic gas that can damage the lungs with prolonged exposure and contribute to health conditions, such as asthma in children. Detecting NO is therefore crucial for maintaining a healthy environment. Carbon nanotubes (CNTs) are promising materials for NO gas sensors due to their excellent electronic properties and high adsorption energy for NO molecules.
View Article and Find Full Text PDFSynergistic Effects of ZnO@NiM'-Layered Double Hydroxide (M' = Mn, Co, and Fe) Composites on Supercapacitor Performance: A Comparative Evaluation.
ACS Nanosci Au
December 2024
Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur 302017, Rajasthan, India.
The development of supercapacitors is pivotal for sustainable energy storage solutions, necessitating the advancement of innovative electrode materials to supplant fossil-fuel-based energy sources. Zinc oxide (ZnO) is widely studied for use in supercapacitor electrodes because of its beneficial physicochemical properties, including excellent chemical and thermal stability, semiconducting characteristics, low cost, and environmentally friendly nature. In this study, ZnO nanorods were synthesized using a simple hydrothermal method and then combined with various Ni-based layered double hydroxides (LDHs) [NiM'-LDHs (M' = Mn, Co, and Fe)] to improve the electrochemical performance of the ZnO nanorods.
View Article and Find Full Text PDFPt-Decorated ZnO Nanorods for Light-Assisted Ethanol Sensing and Analysis of the Sensing Mechanism under Light Irradiation.
ACS Appl Mater Interfaces
December 2024
Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan.
ZnO nanorods have attracted much attention owing to their outstanding properties for chemical gas sensors. Although they show greater sensing properties than conventional nanoparticulate ZnO, high operation temperature (>250-350 °C) is required for them to work even if precious metals are deposited on them to sensitize their sensing properties. Light irradiation is one solution for overcoming the high operation temperature and the gas selectivity because it assists the oxidation activity on the surface that affects the sensor response.
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!