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Nanophysics Mar 17, 2021

Solar cells: Losses made visible on the nanoscale

Solar cells made of crystalline silicon achieve peak efficiencies, especially in combination with selective contacts made of amorphous silicon (a-Si:H). However, their efficiency is limited by losses in these contact layers. ...

Optics & Photonics Mar 3, 2021

Molybdenum disulfide ushers in era of post-silicon photonics

Researchers of the Center for Photonics and Two-Dimensional Materials at MIPT, together with their colleagues from Spain, Great Britain, Sweden, and Singapore, including co-creator of the world's first 2-D material and Nobel ...

Optics & Photonics Feb 10, 2021

Silicon chip provides low cost solution to help machines see the world clearly

Researchers in Southampton and San Francisco have developed the first compact 3-D LiDAR imaging system that can match and exceed the performance and accuracy of most advanced, mechanical systems currently used.

Analytical Chemistry Feb 9, 2021

From trash to treasure: Silicon waste finds new use in Li-ion batteries

Li-ion batteries (LIBs) are widely used in mobile electronics. Concerns of global warming and climate change have recently boosted the demand for LIBs in electric vehicles and solar photovoltaic output smoothing. Si has been ...

Optics & Photonics Dec 8, 2020

Enhanced frequency doubling adds to photonics toolkit

The digital age has seen electronics, including computer chips, shrink in size at an amazing rate, with ever tinier chips powering devices like smartphones, laptops and even autonomous drones. In the wake of this progress, ...

Optics & Photonics Nov 9, 2020

Tiny device enables new record in super-fast quantum light detection

Bristol researchers have developed a tiny device that paves the way for higher performance quantum computers and quantum communications, making them significantly faster than the current state-of-the-art.

Condensed Matter Oct 29, 2020

Density fluctuations in amorphous silicon discovered

For the first time, a team at HZB has identified the atomic substructure of amorphous silicon with a resolution of 0.8 nanometres using X-ray and neutron scattering at BESSY II and BER II. Such a-Si:H thin films have been ...

Nanomaterials Oct 8, 2020

Giant electrochemical actuation in a nanoporous silicon-polypyrrole hybrid material

The absence of piezoelectricity in silicon can lead to direct electromechanical applications of the mainstream semiconductor material. The integrated electrical control of silicon mechanics can open new perspectives for on-chip ...

Optics & Photonics Sep 15, 2020

Single photons from a silicon chip

Quantum technology holds great promise: Just a few years from now, quantum computers are expected to revolutionize database searches, AI systems, and computational simulations. Today already, quantum cryptography can guarantee ...

Nanophysics Sep 4, 2020

Nanoearthquakes control spin centers in silicon carbide

Researchers from the Paul-Drude-Institut in Berlin, the Helmholtz-Zentrum in Dresden and the Ioffe Institute in St. Petersburg have demonstrated the use of elastic vibrations to manipulate the spin states of optically active ...

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