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By… MEENU CHAUDHARY C08533 Quantum Dots
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object]
Bulk Semiconductors ,[object Object],B.E.A. Saleh, M.C. Teich.  Fundamentals of Photonics . fig. 16.1-10 and 16.1-29.
Thin Film Semiconductors ,[object Object],[object Object],[object Object],[object Object]
Quantum Wire ,[object Object],[object Object],[object Object]
Quantum Dot ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],Quantum Dot
Discrete Energy Levels ,[object Object],[object Object],[object Object],[object Object],[object Object],.
CdSe Quantum Dot ,[object Object],[object Object]
How to Make Quantum Dots ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lithography ,[object Object],[object Object],[object Object],[object Object],[object Object]
Colloidal Synthesis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Epitaxy: Patterned Growth ,[object Object],[object Object],[object Object]
Epitaxy: Self-Organized Growth ,[object Object],[object Object],[object Object],[object Object]
Cadmium-free quantum dots “CFQD” ,[object Object],[object Object],[object Object]
What is it good for??? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solar Cells ,[object Object],[object Object],[object Object],[object Object],[object Object]
Different Generations of Solar Cells ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solar Cells Efficiency ,[object Object],[object Object],[object Object]
[object Object],How Can Quantum Dots Improve the Efficiency?
BIOLOGY: LOCATING CANCER CELL ,[object Object]
. These quantum dots can be put into single cells, or lots of cells, in the tissue of living organisms. In future, it is planned to attach specific antibodies to the quantum dots – when injected into a body, the quantum dots will find and bind to cancer cells, and illuminate them when they fluoresce.
TARGETED DRUG DELIVERY ,[object Object],[object Object]
Light emitting diodes: LEDs
Anti-counterfeiting ,[object Object]
SENSORS ,[object Object]
Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
THANK YOU

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Quantum dots ppt

  • 1. By… MEENU CHAUDHARY C08533 Quantum Dots
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  • 24. . These quantum dots can be put into single cells, or lots of cells, in the tissue of living organisms. In future, it is planned to attach specific antibodies to the quantum dots – when injected into a body, the quantum dots will find and bind to cancer cells, and illuminate them when they fluoresce.
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Notas do Editor

  1. Quantum dots created on the surface of GaAs in selective MOCVD growth ( metallorganic vapor phase epitaxy) ; width of the electron localization area at the top of the pyramid is about 100 nm.