WHAT ARE QUANTUM DOTS?

 

  • Quantum Dots are extremely small, spherical shaped semiconductor particles that can be made out of a variety of different elements. These nanocrystals have the ability to absorb and re-emit discrete wavelengths of light when excited.
  • Their emission can be tuned throughout the visible spectrum, producing a very “pure” color when stimulated either by an electrical current or by a light source in a different frequency.
  • Small quantum dot particles emit blue light; larger quantum dot particles emit red light; sizes in between fill-in the spectrum including green.
  • Due to their efficient energy harnessing ability that converts energy into electricity, and their unique size dependent optical and electronic properties, Quantum dots are the building blocks of an extensive range of applications.
  • This includes biomedical, electronics, optoelectronics, optics, solar energy, and security.
  • According to BCC Research, a leading nanotechnology market research firm, the total market for quantum dots will grow from $67million in 2010 to $670million in 2015 and they project Optoelectronics to have the largest market share of quantum dots reaching a value of $310million in 2015.

The revolutionary technology that quantum dots do for Optoelectronics is:

  • Increase energy savings by 35% over LED lighting
  • Improve color range by 50% over standard LED displays
  • Improve existing LED lighting to match the color-rendering index (CRI) of incandescent lights.
  • Increase battery life of mobile devices through more energy efficient displays
  • Increase solar panel efficiencies up to 45%

History of Quantum Dots

Alexey I. Ekimov is a Russian solid state physicist who discovered the semiconductor nanocrystals known as quantum dots, while working at the Vavilov State Optical Institute. He was awarded the 1975 USSR State Prize in Science and Engineering for work on electron spin orientation in semiconductors. ((read more))
Louis E. Brus is the S. L. Mitchell Professor of Chemistry at Columbia University. He is the discoverer of the colloidal semi-conductor nanocrystals known as quantum dots. You can read more about him.
(click here)
.
According to several sources, Quantum dots have been touted to be next breakthrough visual technology to increase LED tv picture quality.

CES-2015-VEGAS

The Verge

ieee.org