The future of movies and manufacturing may be in 3-D, but electronics and photonics are going 2-D; specifically, two-dimensional semiconducting materials.
One of the latest advancements in these fields centers on molybdenum disulfide (MoS), a two-dimensional semiconductor that, while commonly used in lubricants and steel alloys, is still being explored in optoelectronics.
Recently, engineers placed a single layer of MoS molecules on top of a photonic structure called an optical nanocavity made of aluminum oxide and aluminum. (A nanocavity is an arrangement of mirrors that allows beams of light to circulate in closed paths. These cavities help us build things like lasers and optical fibers used for communications.)
The results, described in the paper “MoS monolayers on nanocavities: enhancement in light-matter interaction” published in April by the journal 2D Materials, are promising. The MoS nanocavity can increase the amount of light that ultrathin semiconducting materials absorb. In turn, this could help industry to continue manufacturing more powerful, efficient and flexible electronic devices.
“The nanocavity we have developed has many potential applications,” says Qiaoqiang Gan, PhD, assistant professor of electrical engineering in the University at Buffalo’s School of Engineering and Applied Sciences. “It could potentially be used to create more efficient and flexible solar panels, and faster photodetectors for video cameras and other devices. It may even be used to produce hydrogen fuel through water splitting more efficiently.”
A single layer of MoS is advantageous because unlike another promising two-dimensional material, graphene, its bandgap structure is similar to semiconductors used in LEDs, lasers and solar cells.
“In experiments, the nanocavity was able to absorb nearly 70 percent of the laser we projected on it. Its ability to absorb light and convert that light into available energy could ultimately help industry continue to more energy-efficient electronic devices,” said Haomin Song, a PhD candidate in Gan’s lab and a co-lead researcher on the paper.
Industry has kept pace with the demand for smaller, thinner and more powerful optoelectronic devices, in part, by shrinking the size of the semiconductors used in these devices.
A problem for energy-harvesting optoelectronic devices, however, is that these ultrathin semiconductors do not absorb light as well as conventional bulk semiconductors. Therefore, there is an intrinsic tradeoff between the ultrathin semiconductors’ optical absorption capacity and their thickness.
The nanocavity, described above, is a potential solution to this issue.
The Latest on: Optoelectronics
via Google News
The Latest on: Optoelectronics
- Sanan Optoelectronics to make 6-inch micro LED wafers in 4Q19on October 29, 2019 at 12:18 am
China-based Sanan Optoelectronics plans to kick off production of 6-inch micro LED wafers later in fourth-quarter 2019, according to industry sources. Sanan has developed micro LEDs sized 10 x 20 ...
- BRIEF-Sanan Optoelectronics' 9-Month Net Profit Down 55.6% Y/Yon October 28, 2019 at 5:06 pm
Oct 28 (Reuters) - Sanan Optoelectronics Co Ltd: * SAYS 9-MONTH NET PROFIT DOWN 55.6% Y/Y Source text in Chinese: https://bit.ly/2MTDHvJ Further company coverage: (Reporting by Hong Kong newsroom) ...
- Professor Nikolay Zheludev becomes member of US National Academy of Engineeringon October 28, 2019 at 8:30 am
Southampton, UK -- The Deputy Director of the Optoelectronics Research Centre becomes the first academic from the University of Southampton to ever been elected to NAE. Election to NAE membership ...
- Dynamic covalent chemistry steers synchronizing nanoparticle self-assembly with interfacial polymerizationon October 25, 2019 at 2:09 am
As a general strategy, a wide variety of COF-wrapped nanoparticle assemblies can be synthesized and these hybridized nanomaterials could find applications in optoelectronics, heterogeneous catalysis ...
- Futex Taipei 2019 Showcases AI and Electronics Innovationson October 24, 2019 at 8:07 pm
These are among the new Artificial Intelligence, Electronics and Optoelectronics inventions and research that will soon be unveiled at the Futex Taipei 2019 exhibition. Futex Taipei 2019 runs from ...
- BRIEF-China Display Optoelectronics Technology Holdings Posts Q3 Sales Volume 79.5 Mln Unitson October 24, 2019 at 5:13 pm
Oct 24 (Reuters) - China Display Optoelectronics Technology Holdings Ltd: * GROUP'S SALES VOLUME FOR Q3 INCREASED BY 144.1% Y-O-Y TO 79.5 MILLION UNITS * QTRLY GROUP REVENUE INCREASED TO RMB4,545 ...
- China Display Optoelectronics Technology Holdings Limited Announces Unaudited Financial and Operating Data for the First Three Quarters of 2019on October 24, 2019 at 1:34 pm
Revenue Increased by 78% YOY to RMB 4,545 million Driven by Orders of First-tier Brand Customers Sales Volume Increased by 144.1% YOY HONG KONG, CHINA - Media OutReach - 24 October 2019 - China ...
- Applied Optoelectronics (AAOI) Upgraded to Buy: Here's Whyon October 23, 2019 at 5:08 pm
Investors might want to bet on Applied Optoelectronics (AAOI), as it has been recently upgraded to a Zacks Rank #2 (Buy). An upward trend in earnings estimates -- one of the most powerful forces ...
- Oscillation-aided 3D printing drives rapid fabrication of microlenseson October 23, 2019 at 10:09 am
With increasing demand for miniaturization of optoelectronics, the microlens array has attracted significant attention and become an important micro-optics device widely used in compact imaging, ...
- Optoelectronics Market: Future Opportunities, Supply, Demand Analysis And Outlook To 2028 - Cree, Sony, Samsung Electronicson October 21, 2019 at 4:13 am
Oct 21, 2019 (WiredRelease via COMTEX) -- Optoelectronics Market report 2019 is dispensed after a thorough study of various key market segments like Market Size, Latest Trends, Market Threats & Key ...
via Bing News