Belgian scientists have used a particle physics theory to describe the behaviour of particle-like entities, referred to as excitons, in two layers of graphene, a one-carbon-atom-thick honeycomb crystal. In a paper published ...
Nanophysics
Feb 3, 2014
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Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave.
General Physics
May 24, 2012
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(PhysOrg.com) -- Two Lehigh physicists have developed an imaging technique that makes it possible to directly observe light-emitting excitons as they diffuse in a new material that is being explored for its extraordinary ...
General Physics
Aug 12, 2011
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(PhysOrg.com) -- Research led by the University of Warwick has found a way to use doughnuts shaped by-products of quantum dots to slow and even freeze light, opening up a wide range of possibilities from reliable and effective ...
General Physics
Mar 9, 2009
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A research team has uncovered the dynamics of bright-dark exciton transition in anatase TiO2. Their findings have been published in the Proceedings of the National Academy of Sciences.
Condensed Matter
Jan 15, 2024
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What plagues quantum upscaling? Most quantum computing devices are dependent on using complex physical phenomena that are either very short-lived (~10-12 seconds) and/or only survive at ultra-low temperatures (e.g., 10-3 ...
Since the realization that a linearly polarized light can create K-K' valley coherent excitons in monolayer transition metal dichalcogenide (TMDC) semiconductors back in 2013, it has been a longstanding goal for researchers ...
Optics & Photonics
Jul 19, 2023
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2
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 ...
Nanophysics
Apr 5, 2023
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2
Bound electron-hole pairs, or excitons, are the workhorses in layered transition metal dichalcogenide semiconductors. Like the negative and positive charge carriers from which it forms, the exciton exhibits great mobility ...
Condensed Matter
Feb 10, 2023
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Semiconductor nanocrystals (NCs) hold great promise as sensitizers for triplet-triplet annihilation up-conversion (TTA-UC) due to their facile bandgap tunability and negligible inter-system crossing loss. However, the understanding ...
Optics & Photonics
Feb 9, 2023
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