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Search results for optoelectronics

Nanophysics Apr 25, 2023

Van der Waals integration permits novel hetero-integrated photonic devices and flexible optical applications

Today, electronic and photonic devices are ubiquitous in smart phones, computers, light sources, sensors, and communications. To underpin the demand for optoelectronic applications, functional materials are essential. For ...

Nanophysics Apr 24, 2023

A general theory to realize bilayer stacking ferroelectricity

Two-dimensional (2D) ferroelectrics, planar materials that have a spontaneous and reversible electric polarization, are extremely rare and yet could be extremely advantageous for the development of new nanoelectronics. Due ...

Optics & Photonics Apr 18, 2023

Researchers design new self-powered ultraviolet photodetector

Ultraviolet (UV) light detection can revolutionize industries such as civil engineering, military defense, aerospace exploration, and medical research. The future of electronics relies heavily on energy-efficient devices ...

Nanophysics Apr 12, 2023

Migrating ions through the perovskite layer in two dimensions

Electrostatic doping has been widely used in low-dimensional materials, including carbon nanotube (CNT) and two-dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDs). Unlike conventional ...

Analytical Chemistry Apr 12, 2023

Researchers reveal stability origin of Dion-Jacobson 2D perovskites

Yin-Yang theory is an ancient Chinese philosophy in which Yin-Yang forces are interdependent and work in opposition to each other to create balance.

Nanophysics Apr 11, 2023

Manipulating hypersound in mesoporous materials

The rapidly advancing field of nanophononics focuses on the study of hypersound, which are acoustic waves in the gigahertz to terahertz range, at the nanoscale. These high-frequency acoustic vibrations, also known as acoustic ...

Optics & Photonics Apr 6, 2023

Ultra-fast light at the end of the vacuum tunnel: Meta-optics shows physical processes in the attosecond range

Developed at Harvard, and successfully tested at Graz University of Technology (TU Graz), a revolutionary new meta-optics for microscopes with extremely high spatial and temporal resolution has proven its functional ability ...

Nanophysics Apr 5, 2023

Tip-enhanced spectroscopy contributes to making 'transformer' semiconductor particles

Is it possible to make wearable devices like Spiderman's suit that are thin and soft, yet also feature electrical and optical functionalities? The answer lies in producing novel materials that go far beyond the performance ...

Optics & Photonics Apr 4, 2023

Efficient nanostructuring of glass with elliptically polarized pulses

Photoexcitation, and especially photoionization, is one of the most important manifestations of the light-matter interaction in nature, ranging from photosynthesis in plants and vision in biology to photography and laser ...

Optics & Photonics Mar 31, 2023

Mechanisms of ultra-fast gigahertz burst femtosecond laser ablation

Gigahertz femtosecond lasers are suited to enhance and regulate laser machining quality to engineer the physicochemical properties of materials. Materials scientists seek to understand the laser-material interactions by gigahertz ...

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