Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics > #528275 > unrolled thread

Entanglement at heart of '2-for-1' fission in next-generation solar cells

Back to article view | Back to sci.physics

Contents

  Entanglement at heart of '2-for-1' fission in next-generation solar cells Sam Wormley <swormley1@gmail.com> - 2015-10-26 13:51 -0500
    Re: Entanglement at heart of '2-for-1' fission in next-generation solar cells jimp@specsol.spam.sux.com - 2015-10-26 19:12 +0000

#528275 — Entanglement at heart of '2-for-1' fission in next-generation solar cells

Entanglement at heart of '2-for-1' fission in next-generation solar cells
> http://phys.org/news/2015-10-entanglement-heart-for-fission-next-generation.html

> An international team of scientists have observed how a mysterious
> quantum phenomenon in organic molecules takes place in real time,
> which could aid in the development of highly efficient solar cells.
>
> The researchers, led by the University of Cambridge, used ultrafast
> laser pulses to observe how a single particle of light, or photon,
> can be converted into two energetically excited particles, known as
> spin-triplet excitons, through a process called singlet fission. If
> the process of singlet fission can be controlled, it could enable
> solar cells to double the amount of electrical current that can be
> extracted.
>
> In conventional semiconductors such as silicon, when one photon is
> absorbed it leads to the formation of one free electron that can be
> harvested as electrical current. However certain materials undergo
> singlet fission instead, where the absorption of a photon leads to
> the formation of two spin-triplet excitons.
>
> Working with researchers from the Netherlands, Germany and Sweden,
> the Cambridge team confirmed that this 'two-for-one' transformation
> involves an elusive intermediate state in which the two triplet
> excitons are 'entangled', a feature of quantum theory that causes the
> properties of each exciton to be intrinsically linked to that of its
> partner.


-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

[toc] | [next] | [standalone]

#528293

Sam Wormley <swormley1@gmail.com> wrote:
> Entanglement at heart of '2-for-1' fission in next-generation solar cells

Yet another "next-generation solar cell" that may or may not ever
exist.

Have you ever wondered what your life might have been like if you had
the competence to do more than just copy the words of others, spamming
piece of shit?


-- 
Jim Pennino

[toc] | [prev] | [standalone]

Back to top | Article view | sci.physics

csiph-web