Light-emitting MXene quantum dots
2021-05-25
(Press-News.org) In a new publication from Opto-Electronic Advances; DOI https://doi.org/10.29026/oea.2021.200077, Researchers led by Professor Jeongyong Kim at the Department of Energy Science, Sungkyunkwan University, Suwon, Republic of Korea review light-emitting MXene quantum dots.
MXenes have found wide-ranging applications in energy storage devices, sensors, catalysis, etc. owing to their high electronic conductivity and wide range of optical absorption. However, the absence of semiconducting MXenes has limited their applications related to light emission.
Extensively reviewing current relevant research, the authors summarise recent advances in MXene quantum dot (MQD) research on the synthesis, optical properties and applications of MQDs as light emitting quantum materials. Research has shown that quantum dots (QDs) derived from MXene (MQDs) not only retain the properties of the parent MXene but also demonstrate significant improvement on light emission and quantum yield.
The authors provide an overview of light emitting MQDs and their synthesis methods, optical properties, and applications in various optical, sensory, and imaging devices. Future prospects for light emitting MQDs are also discussed to provide insight to help further advance research.
Article reference: Sharbirin AS, Akhtar S, Kim JY. Light-emitting MXene quantum dots. Opto-Electron Adv 4, 200077 (2021) . doi: 10.29026/oea.2021.200077
Keywords: MXene, quantum dots, light emission, MAX phase, 2D materials
Professor Kim's research group carries out cutting-edge research on 2D materials focusing on their light emission properties. From 2014, the group has presented pioneering results on spatially and spectrally identifying the exciton complexes of 2D-transition metal dichalcogenides such as MoS2 and WS2. Using a variety of chemical or physical treatments or specific device configurations the group has demonstrated how to engineer or improve the emission characteristics of these 2D direct bandgap semiconductors. By recently extending the scope of the study on 2D materials into MXenes, the research group is now exploring non-toxic, bio-compatible and high-efficiency light emission by MQDs.
INFORMATION:
Opto-Electronic Advances (OEA) is a high-quality, open access, peer reviewed research journal that is published by The Institute of Optics and Electronics, Chinese Academy of Sciences. OEA provides a platform for researchers, academicians, professionals, practitioners, and students to impart and share knowledge in the form of high quality empirical and theoretical research papers covering the topics of optics, photonics and optoelectronics.
Since its launch in March 2018, OEA has expanded into a monthly publication schedule. From 2020 OEA is indexed by Science Citation Index Expanded (SCIE) and SCOPUS. From the current Web of Science (WoS) data, OEA expects that the June 2021 Journal Citation Report (JCR) should show that the journal has an Impact Factor of about 10.
More information: http://www.oejournal.org/oea
Editorial Board: http://www.oejournal.org/oea/editorialboard/list
All issues available in the online archive (http://www.oejournal.org/J/OEA/Article/AllIssues).
Submissions to OEA may be made using ScholarOne (https://mc03.manuscriptcentral.com/oea).
ISSN: 2096-4579
CN: 51-1781/TN
Contact Us: oea@ioe.ac.cn
Twitter: @OptoElectronAdv
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
2021-05-25
Graphene is an ultrathin material characterized by its ultrasmall bending modulus, superflimsiness. Now the researchers at the Nanoscience Center of the University of Jyväskylä have demonstrated how an experimental technique called optical forging can make graphene ultrastiff, increase its stiffness by several orders of magnitude. The research was published in npj 2D Materials and Applications in May 2021.
Graphene is an atomically thin carbon material loaded with excellent properties, such as large charge carrier mobility, superb thermal conductivity, and high ...
2021-05-25
When it comes to distinguishing a healthy cell from an infected one that needs to be destroyed, the immune system's killer T cells sometimes make mistakes.
This discovery, described today in eLife, upends a long-held belief among scientists that T cells were nearly perfect at discriminating friend from foe. The results may point to new ways to treat autoimmune diseases that cause the immune system to attack the body, or lead to improvements in cutting-edge cancer treatments.
It is widely believed that T cells can discriminate perfectly between infected cells and healthy ones based on how tightly they are able to bind to molecules called antigens ...
2021-05-25
About 14 billion years ago, our universe changed from being a lot hotter and denser to expanding radically - a process that scientists have named 'The Big Bang'.
And even though we know that this fast expansion created particles, atoms, stars, galaxies and life as we know it today, the details of how it all happened are still unknown.
Now a new study performed by researchers from University of Copenhagen reveals insights on how it all began.
"We have studied a substance called Quark-Gluon Plasma that was the only matter, which existed during the first microsecond ...
2021-05-25
A rare mutation that causes Parkinson's disease-like symptoms interrupts the flow of dopamine in the brain, suggests a study in fruit flies published today in eLife.
The findings provide more detailed insights about why young children with this mutation develop these symptoms. This new information, as well as previous evidence that therapies helping to improve dopamine balance in the brain can alleviate some symptoms in the flies, suggests that this could be a beneficial new treatment strategy.
Parkinson's disease causes progressive degeneration of the brain that leads to impaired movement and coordination. Current treatments focus on replacing or increasing the levels of dopamine to help reduce movement-related symptoms. But these drugs can have side ...
2021-05-25
Graphene nanoribbons (GNRs), narrow strips of single-layer graphene, have interesting physical, electrical, thermal, and optical properties because of the interplay between their crystal and electronic structures. These novel characteristics have pushed them to the forefront in the search for ways to advance next-generation nanotechnologies.
While bottom-up fabrication techniques now allow the synthesis of a broad range of graphene nanoribbons that feature well-defined edge geometries, widths, and heteroatom incorporations, the question of whether or not structural disorder is present in these atomically precise GNRs, and to what extent, is still subject to debate. The answer to this ...
2021-05-25
In the latest National Autism Indicators Report, researchers from Drexel University’s A.J. Drexel Autism Institute examined surveys of family members of autistic adults who use Developmental Disability services, and found needs for additional supports like respite care and assistance to plan for crisis and emergencies, especially among families whose adult lived with them.
Data from the surveys showed over one quarter of families with autistic adults who use Developmental Disability services and live with family do not have enough services or supports for themselves, according to the report. And over half of these families ...
2021-05-25
Staying up all night, working nonstop, eating on the run and skipping meals are often telltale signs of starting a new business. But research shows this constant hustle - which is often glorified as the key to success - can have a negative impact not only on an entrepreneur's health and well-being but also his or her business.
New research led by UCF assistant professor of management Jeff Gish suggests that engaging in recovery may help entrepreneurs reduce the negative impact of stress.
"Entrepreneurs who work really hard and grind on their business and who most ...
2021-05-25
Cells sense and respond to the mechanical properties of the cellular microenvironment in the body. Changes in these properties, which occur in a number of human pathologies, including cancer, can elicit abnormal responses from cells. How the cells adapt to such changes in the mechanical microenvironment is not well understood.
A team of researchers at Texas A&M University are working to understand cellular mechanosensing -- the ability to sense and respond to the mechanical properties of the microenvironment -- in a unique way. Dr. Tanmay Lele, Unocal Professor in the Department of Biomedical Engineering, Department of Chemical Engineering and the Department of Translational Medical Sciences, partnered with Dr. Charles Baer, an evolutionary biologist at the University of Florida. ...
2021-05-25
BUFFALO, N.Y. - To improve the development of new saliva-based diagnostic tests and personalized medicine, the National Institute of Dental and Craniofacial Research (NIDCR) has supported the development of the Human Salivary Proteome Wiki, the first public platform that catalogs and curates data on each of the thousands of proteins within our saliva.
Detailed in an article published on Tuesday, May 25 in the Journal of Dental Research, the wiki provides researchers and clinicians with rich, unbiased evidence from multiple independent studies to help explore the dynamic and complex nature of saliva, as well as analytical tools to search for data by tissue type, disease and more.
"This ...
2021-05-25
New effective compounds, which can be endogenous donors of a signaling molecule - hydrogen sulfide in the body, were synthesized by SUSU scientists. Due to this property, the obtained compounds are potential drugs with a cancer-preventing effect. The research work was published in the Russian Chemical Bulletin (Q3).
Organosulfur compounds with anticancer, antibacterial, and antirheumatic properties have been studied for some years by scientists from South Ural State University and N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences. In the latest study, they attempted to search for new derivatives of 1,2-dithiol-3-thiones - compounds with various ...
LAST 30 PRESS RELEASES:
[Press-News.org] Light-emitting MXene quantum dots
