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Archive for the ‘materials’ category: Page 4

Sep 21, 2024

This Powerful Nano Disk Could Revolutionize How We Manipulate Light

Posted by in categories: materials, nanotechnology

Researchers have created a disk-like nanostructure that dramatically improves light frequency conversion efficiency. This innovation in photonics combines material and optical resonances in a compact form, paving the way for advanced optical and photonic applications.

Scientists at Chalmers University of Technology, in Sweden, have for the first time succeeded in combining two major research fields in photonics by creating a nanoobject with unique optical qualities. Since the object is a thousand times thinner than a human hair, yet very powerful, the breakthrough has great potential in the development of efficient and compact nonlinear optical devices. “My feeling is that this discovery has a great potential,” says Professor Timur Shegai, who led the study at Chalmers.

Harnessing Light With Advanced Photonics.

Sep 21, 2024

Organic thermoelectric device can harvest energy at room temperature

Posted by in categories: energy, materials

Researchers have developed a new organic thermoelectric device that can harvest energy from ambient temperature. While thermoelectric devices have several uses today, hurdles still exist to their full utilization. By combining the unique abilities of organic materials, the team succeeded in developing a framework for thermoelectric power generation at room temperature without any temperature gradient.

Their findings were published in the journal Nature Communications.

Thermoelectric devices, or thermoelectric generators, are a series of energy-generating materials that can convert heat into electricity so long as there is a —where one side of the device is hot and the other side is cool. Such devices have been a significant focus of research and development for their potential utility in harvesting from other energy-generating methods.

Sep 20, 2024

Infinity on Instagram: ‘Graphene’

Posted by in category: materials

2 likes, — infinitywithoutend on July 21, 2024: ‘Graphene’

Sep 20, 2024

Potential and challenges of computing with molecular materials

Posted by in categories: computing, materials

Molecular materials for computing progress intensively but the performance and reliability still lag behind. Here the authors assess the current state of computing with molecular-based materials and describe two issues as the basis of a new computing technology: continued exploration of molecular electronic properties and process development for on-chip integration.

Sep 20, 2024

New Device Leads to “Dendrocentric Learning”

Posted by in categories: materials, neuroscience

Stanford researchers mimic brain structure with ferroelectric material.

Sep 18, 2024

2D silk protein layers on graphene pave the way for advanced microelectronics and computing

Posted by in categories: computing, materials

After thousands of years as a highly valuable commodity, silk continues to surprise. Now it may help usher in a whole new direction for microelectronics and computing.

Sep 18, 2024

An unprecedented feat: Printing 3D photonic crystals that completely block light

Posted by in category: materials

Photonic crystals are materials with repeating internal structures that interact with light in unique ways. We can find natural examples in opals and the vibrant colored shells of some insects. Even though these crystals are made of transparent materials, they exhibit a “photonic bandgap” that blocks light at certain wavelengths and directions.

Sep 18, 2024

New method improves understanding of light-wave propagation in anisotropic materials

Posted by in categories: biotech/medical, materials

Understanding how light travels through various materials is essential for many fields, from medical imaging to manufacturing. However, due to their structure, materials often show directional differences in how they scatter light, known as anisotropy. This complexity has traditionally made it difficult to accurately measure and model their optical properties. Recently, researchers have developed a new technique that could transform how we study these materials.

Sep 18, 2024

New technology produces ultrashort ion pulses

Posted by in categories: chemistry, materials

TU Wien (Vienna) has succeeded in generating laser-synchronized ion pulses with a duration of well under 500 picoseconds, which can be used to observe chemical processes on material surfaces. The work has been published in Physical Review Research.

Sep 17, 2024

Human bone-inspired cement is 5 times tougher than standard concrete

Posted by in categories: biotech/medical, materials

Getting tips from the design of the human body.

Scientists create bone-inspired cement, over five times stronger than concrete.

Continue reading “Human bone-inspired cement is 5 times tougher than standard concrete” »

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