(PhysOrg.com) -- Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited ...
General Physics
Dec 15, 2011
47
0
University of Nebraska-Lincoln engineers have doubled the efficiency of a prominent solar cell technology by unraveling the origins of a phenomenon known to hinder cell performance, stability and evaluation.
Energy & Green Tech
Dec 15, 2014
3
0
Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, none of the available ...
Nanophysics
Jan 31, 2012
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0
Researchers at Linköping University have discovered a quantum phenomenon that influences the formation of free charges in organic solar cells. "If we can properly understand what's going on, we can increase the efficiency," ...
Quantum Physics
Mar 26, 2020
0
499
In a new report now published on Science Advances, Tiancheng Song and a research team at the department of physics, University of Washington, U.S., and materials and nanoarchitectronics in Japan and China, detailed spin photovoltaic ...
Quantum sensors can be used to reveal a surprising new mechanism for converting light into electricity in Weyl semimetals, Boston College (BC) Assistant Professor of Physics Brian Zhou and colleagues report in the journal ...
Optics & Photonics
Jan 26, 2023
0
579
A study showing how electrons flow around sharp bends, such as those found in integrated circuits, has the potential to improve how these circuits, commonly used in electronic and optoelectronic devices, are designed.
Nanophysics
Sep 19, 2023
0
160
(Phys.org)—As solar cell technology matures, researchers continue to look for ways to develop ever-thinner technology to reduce material costs. Such technology also reduces the distance electrons and holes, loosened by ...
A massless particle, a.k.a. Weyl fermion, predicted nearly 100 years ago, has been found in another corner of physics. Electrons in a semimetal can behave like these particles. They are either right-handed or left-handed—they ...
General Physics
Feb 15, 2018
0
53
Researchers have long wondered whether light can be efficiently converted into electricity. Realistic and efficient methods to generate electricity from light, photocurrent, has numerous potential applications in the clean ...
Condensed Matter
Apr 16, 2024
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