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Condensed Matter Apr 17, 2024

Beyond equilibrium: Scientists investigate Floquet Fermi liquids

Researchers from Germany and Singapore have studied a non-equilibrium state of Fermi liquids called the Floquet Fermi liquid (FFL), which is formed when Fermi liquids are subjected to a periodic driving force and kept in ...

Nanophysics Mar 8, 2018

Energy harvester collects energy from sunlight and raindrops

By attaching a transparent nanogenerator to a silicon solar cell, researchers have designed a device that harvests solar energy in sunny conditions and the mechanical energy of falling raindrops in rainy conditions. The dual ...

Optics & Photonics Nov 3, 2017

Cicada wings help researchers design better solar cells

(Phys.org)—Researchers have turned to cicada wings to design surfaces with highly antireflective properties, which have potential applications for solar cells, stealth surfaces, antifogging materials, and other optical ...

Materials Science May 20, 2016

Electricity from seawater: New method efficiently produces hydrogen peroxide for fuel cells

(Phys.org)—Scientists have used sunlight to turn seawater (H2O) into hydrogen peroxide (H2O2), which can then be used in fuel cells to generate electricity. It is the first photocatalytic method of H2O2 production that ...

Materials Science Apr 24, 2016

Solar cell mystery solved, expected to greatly increase efficiency

(Phys.org)—For the past 17 years, spiro-OMeTAD, has been keeping a secret. Despite intense research efforts, its performance as the most commonly used hole-transporting material in perovskite and dye-sensitized solar cells ...

Nanophysics Nov 12, 2015

'Harmful' effects paradoxically enhance solar cell efficiency

(Phys.org)—Dissipation and decoherence are typically considered harmful to solar cell efficiency, but in a new paper scientists have shown that these effects paradoxically make the exciton lifetime in semiconducting carbon ...

Nanophysics Jan 23, 2014

Future solar cells may be made of wood

(Phys.org) —A new kind of paper that is made of wood fibers yet is 96% transparent could be a revolutionary material for next-generation solar cells. Coming from plants, the paper is inexpensive and more environmentally ...

Nanomaterials Jul 26, 2013

Photon funnel could direct and regulate light into solar cells

It has often been said that solar cells are like artificial versions of the photosynthetic apparatuses found in plants, such as leaves, since both harvest sunlight. But nature's leaves can do something that most solar cells ...

Nanophysics Apr 17, 2013

Hybrid energy harvester generates electricity from vibrations and sunlight

(Phys.org) —Devices that harvest energy from the environment require specific environmental conditions; for instance, solar cells and piezoelectric generators require sunlight and mechanical vibration, respectively. Since ...

Nanomaterials Feb 20, 2013

Multijunction solar cell could exceed 50% efficiency goal

(Phys.org)—Scientists have designed a new multijunction solar cell that, in simulations, can achieve an efficiency of 51.8%. This high performance exceeds the current goal of 50% efficiency in multijunction solar cell research ...

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