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Quantum dots

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Quantum dots (QD) are semiconductors made via several possible routes. John Ashmead discusses how they are made, their properties and their applications in research.

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Quantum dots

  1. 1. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Quantum Dots John Ashmead
  2. 2. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What are Quantum Dots?
  3. 3. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What are Quantum Dots?
  4. 4. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Size Matters
  5. 5. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016
  6. 6. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 One source of light, multiple colors
  7. 7. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Blinking QDots!
  8. 8. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Heavy Metal
  9. 9. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Heavy Metal
  10. 10. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Square Well http://what-when-how.com/nanoscience-and-nanotechnology/quantum-dots-inelastic-light- scattering-from-electronic-excitations-part-1-nanotechnology/
  11. 11. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Band gap
  12. 12. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Rise
  13. 13. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 And Fall
  14. 14. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Lithography
  15. 15. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Epitaxy In self-assembly of QDs, one makes use of an island formation in epitaxial growth. The effect is similar to the formation of water droplets on a well- phished surface.
  16. 16. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Colloidal production
  17. 17. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Colloidal production
  18. 18. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Stenotrophomonas maltophilia ➫ QDots
  19. 19. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Who knew?
  20. 20. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Who knew?
  21. 21. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 http://www.gartner.com/newsroom/id/3114217 Universal Curve of Hype!
  22. 22. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 QD as Fast as Possible
  23. 23. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 QD as Fast as Possible
  24. 24. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Solar panels http://www.dailytech.com/New+Solar+Cell+Gives+Its+110+Percent+in+Efficiency/ article23548.htm
  25. 25. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 the Quantum Dot (QD) spectrometer device is printing QD filters — a key fabrication step. … The optical structure — QD filters — are generated by printing liquid droplets.
  26. 26. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Mouse Intestines at Night
  27. 27. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Slightly dotty Mice
  28. 28. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Probes
  29. 29. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Little tiny body ships
  30. 30. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 QDs changing medicine
  31. 31. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 QDs changing medicine
  32. 32. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Labeling Tumors
  33. 33. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Labeling Tumors
  34. 34. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Entanglement
  35. 35. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Quantum Computing
  36. 36. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Maxwell’s Demon
  37. 37. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Maxwell’s Demon
  38. 38. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 “There’s Plenty of Room at the Bottom” - Richard P. Feynman
  39. 39. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 How 2 make QDs at Home
  40. 40. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 How 2 make QDs at Home
  41. 41. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots?
  42. 42. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots? • Sweet spot between atoms & macroscopic structures
  43. 43. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots? • Sweet spot between atoms & macroscopic structures • Quantum effects seen
  44. 44. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots? • Sweet spot between atoms & macroscopic structures • Quantum effects seen • But relatively independent of specifics
  45. 45. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots? • Sweet spot between atoms & macroscopic structures • Quantum effects seen • But relatively independent of specifics • Lots of potential for direct use
  46. 46. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 What can we brew up with QDots? • Sweet spot between atoms & macroscopic structures • Quantum effects seen • But relatively independent of specifics • Lots of potential for direct use • But real leverage may be in connections
  47. 47. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 A steal at $765.38!(+ Shipping)
  48. 48. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Science Writer Needed!
  49. 49. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Science Writer Needed! • Look for Nanotech
  50. 50. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Science Writer Needed! • Look for Nanotech • Wikipedia article not that useful — techy
  51. 51. http://timeandquantummechanics.comQuantum Dots - Balticon, May 28th, 2016 Science Writer Needed! • Look for Nanotech • Wikipedia article not that useful — techy • Lots of stuff on youtube (Ashmead Quantum Dots - 96 videos)

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