ScienceDaily: Top Technology News |
- Theoretically, two layers are better than one for solar-cell efficiency
- Future autonomous machines may build trust through emotion
- Going small for big solutions: Sub-nanoparticle catalysts made from coinage elements as effective catalysts
- Study shows difficulty in finding evidence of life on Mars
- Single photons from a silicon chip
- Ultra-fast magnetic switching with potential to transform fiber optical communications
- Shining a light on disordered and fractal systems
- Big answers from tiny particles
- How to harness the power of biosolids to make hydrogen
| Theoretically, two layers are better than one for solar-cell efficiency Posted: 15 Sep 2020 04:42 PM PDT Solar cells have come a long way, but inexpensive, thin film solar cells are still far behind more expensive, crystalline solar cells in efficiency. Now, a team of researchers suggests that using two thin films of different materials may be the way to go to create affordable, thin film cells with about 34% efficiency.      |
| Future autonomous machines may build trust through emotion Posted: 15 Sep 2020 04:42 PM PDT Research has extended the state-of-the-art in autonomy by providing a more complete picture of how actions and nonverbal signals contribute to promoting cooperation. Researchers suggested guidelines for designing autonomous machines such as robots, self-driving cars, drones and personal assistants that will effectively collaborate with Soldiers. |
| Posted: 15 Sep 2020 11:01 AM PDT 'Sub-nanometer' particles (SNPs) are very popular because of their diverse applications, but technical difficulties in their synthesis has hindered research in this field. Scientists used an 'atom-hybridization method' to overcome this barrier they developed to study the reactivity of alloy SNPs made from three coinage metal elements. Their findings are an important step in improving the knowledge about properties of finite elements and help in building a sustainable society. |
| Study shows difficulty in finding evidence of life on Mars Posted: 15 Sep 2020 09:13 AM PDT While scientists are eager to study the red planet's soils for signs of life, researchers must ponder a considerable new challenge: Acidic fluids - which once flowed on the Martian surface - may have destroyed biological evidence hidden within Mars' iron-rich clays, according to researchers. |
| Single photons from a silicon chip Posted: 15 Sep 2020 07:59 AM PDT Quantum technology holds great promise: Quantum computers are expected to revolutionize database searches, AI systems, and computational simulations. Today already, quantum cryptography can guarantee secure data transfer, albeit with limitations. The greatest possible compatibility with current silicon-based electronics will be a key advantage. And that is precisely where physicists have made progress: The team has designed a silicon-based light source to generate single photons that propagate well in glass fibers. |
| Ultra-fast magnetic switching with potential to transform fiber optical communications Posted: 15 Sep 2020 07:59 AM PDT Researchers have discovered that a new material can act as a super-fast magnetic switch. When struck by successive ultra-short laser pulses it exhibits 'toggle switching' that could increase the capacity of the global fiber optic cable network by an order of magnitude. |
| Shining a light on disordered and fractal systems Posted: 15 Sep 2020 06:01 AM PDT A research team has investigated the acoustic properties of disordered lysozyme proteins by using terahertz spectroscopy. They found that the fractal nature of the proteins is responsible for its unusually large vibrations at low frequencies, which may lead to a better theory for disordered materials. |
| Big answers from tiny particles Posted: 14 Sep 2020 08:22 AM PDT Physicists demonstrate a theoretical mechanism that would explain the tiny value for the mass of neutrinos and point out that key operators of the mechanism can be probed by current and future experiments. This work may provide a breakthrough for big philosophical quandaries, including why matter exists. |
| How to harness the power of biosolids to make hydrogen Posted: 14 Sep 2020 06:59 AM PDT New technology uses biosolids to drive the chemical reactions needed to produce hydrogen from biogas. The circular economy approach means all the materials needed for hydrogen production could be sourced on-site at a wastewater treatment plant, without the need for expensive catalysts. |
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