Crystal with a twist: scientists grow spiraling new material
With a simple twist of the fingers, one can create a beautiful spiral from a deck of cards. In the same way, scientists at the University of California, Berkeley, and Lawrence Berkeley National...
View ArticleResearchers improve semiconductor laser on silicon
Electrical engineering researchers have boosted the operating temperature of a promising new semiconductor laser on silicon substrate, moving it one step closer to possible commercial application.
View ArticleDesigning light-harvesting organic semiconductor microcrystals with...
Organic solid-state lasers are essential for photonic applications, but current-driven lasers are a great challenge to develop in applied physics and materials science. While it is possible to create...
View ArticleLaboratory experiments show that semiconductor nanowires can be tuned over...
Nanowires promise to make LEDs more colorful and solar cells more efficient, in addition to speeding up computers. That is, provided that the tiny semiconductors convert electric energy into light, and...
View ArticleAtomic 'patchwork' using heteroepitaxy for next-generation semiconductor devices
Researchers from Tokyo Metropolitan University have grown atomically thin crystalline layers of transition metal dichalcogenides (TMDCs) with varying composition over space, continuously feeding in...
View ArticleTuning the energy levels of organic semiconductors
Physicists from the Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and the Center for Advancing Electronics Dresden (cfaed) at the TU Dresden, together with researchers...
View ArticleResearchers discover semiconducting nanotubes that form spontaneously
If scientists could find a way to control the process for making semiconductor components on a nanometric scale, they could give those components unique electronic and optical properties—opening the...
View ArticleResearchers develop ultrafast semiconductors
UK researchers have developed world-leading Compound Semiconductor (CS) technology that can drive future high-speed data communications.
View ArticleNanoscale visualization of the distribution and optical behavior of dopant in...
In Gallium Nitride (GaN) implanted with a small amount of magnesium (Mg), NIMS succeeded for the first time in visualizing the distribution and optical behavior of implanted Mg at the nanoscale which...
View ArticleCoupled exploration of light and matter
n quasiparticles known as polaritons, states of light and matter are strongly coupled. The group of Prof. Ataç İmamoğlu has now developed a new approach to study nonlinear optical properties of...
View ArticleSearch for new semiconductors heats up with gallium oxide
University of Illinois electrical engineers have cleared another hurdle in high-power semiconductor fabrication by adding the field's hottest material—beta-gallium oxide—to their arsenal. Beta-gallium...
View ArticleUltrathin transistors for faster computer chips
For decades, the transistors on our microchips have become smaller, faster and cheaper. Approximately every two years the number of transistors on commercial chips has doubled—this phenomenon became...
View ArticleResearchers demonstrate low voltage LEDs
When atomically thin semiconductors are combined together in a Lego style, they emit light at a lower voltage potentially leading to low energy consumption devices.
View ArticleA new method for quantifying crystal semiconductor efficiency
Japanese scientists have found a new way to detect the efficiency of crystal semiconductors. For the first time ever, the team used a specific kind of photoluminescence spectroscopy, a way to detect...
View ArticleA novel recipe for efficiently removing intrinsic defects from hard crystals
A team of researchers from Osaka University, the Institute for High Pressure Physics and the Institute for Nuclear Research of Russian Academy of Sciences (Russia), and TU Dresden (Germany), discovered...
View ArticleSilicon as a semiconductor: Silicon carbide would be much more efficient
In power electronics, semiconductors are based on the element silicon—but the energy efficiency of silicon carbide would be much higher. Physicists of the University of Basel, the Paul Scherrer...
View ArticleFuture of portable electronics: Novel organic semiconductor with exciting...
Semiconductors are substances that have a conductivity between that of conductors and insulators. Due to their unique properties of conducting current only in specific conditions, they can be...
View ArticleStudy introduces new nanoscale vacuum channel transistors
Vacuum tubes initially played a central role in the development of electronic devices. A few decades ago, however, researchers started replacing them with semiconductor transistors, small electronic...
View ArticleJust add water—Chemists uncover a mechanism behind doping organic semiconductors
Semiconductors—and our mastery of them—have enabled us to develop the technology that underpins our modern society. These devices are responsible for a wide range of electronics, including circuit...
View ArticleNano bulb lights novel path: Engineers create tunable, nanoscale,...
What may be viewed as the world's smallest incandescent lightbulb is shining in a Rice University engineering laboratory with the promise of advances in sensing, photonics and perhaps computing...
View ArticleClarification of a new synthesis mechanism of semiconductor atomic sheets
In Japan Science and Technology Agency's Strategic Basic Research Programs, Associate Professor Toshiaki Kato and Professor Toshiro Kaneko of the Department of Electronic Engineering, Graduate School...
View ArticleMachine learning opens new possibilities for quantum devices
Scientists from the University of Oxford, in collaboration with University of Basel and Lancaster University, have developed an algorithm that can be used to measure quantum dots automatically.
View ArticleResearchers repurpose failed cancer drug into printable semiconductor
Many potential pharmaceuticals end up failing during clinical trials, but thanks to new research from the University of Illinois, biological molecules once considered for cancer treatment are now being...
View ArticleKeeping cool with quantum wells
University of Tokyo researchers have announced a new approach for electrical cooling without the need for moving parts. By applying a bias voltage to quantum wells made of the semiconductor aluminum...
View ArticleA window for trap-free charge transport in organic semiconductors
Organic semiconductors, a class of carbon-based materials with optical and electronic properties, are now commonly used to fabricate a variety of devices, including solar cells, light-emitting diodes...
View ArticleQuantum state of single electrons controlled by 'surfing' on sound waves
Researchers have successfully used sound waves to control quantum information in a single electron, a significant step towards efficient, robust quantum computers made from semiconductors.
View ArticleUnlocking a 140-year-old secret in physics
Semiconductors are the basic building blocks of digital devices. Improvements in semiconductor functionality and performance are likewise enabling next-generation applications of semiconductors for...
View ArticleSolving the mystery of quantum light in thin layers
When a current is applied to a thin layer of tungsten diselenide, it begins to glow in a highly unusual fashion. In addition to ordinary light, which other semiconductor materials can emit, tungsten...
View ArticleA cavity leads to a strong interaction between light and matter
Researchers have succeeded in creating an efficient quantum-mechanical light-matter interface using a microscopic cavity. Within this cavity, a single photon is emitted and absorbed up to 10 times by...
View ArticleScientists spy unstable semiconductors
Scientists from Cardiff University have, for the first time, spotted previously unseen "instabilities" on the surface of a common compound semiconductor material.
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