Raman Spectrum of CdTe quantum dot

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Presentation transcript:

Raman Spectrum of CdTe quantum dot 邹依伊 maqstic.Z

Background What is Quantum Dot?? Properties of Quantum Dot: Quasi-zero-dimensional nanomaterial Size: 10 ~ 100 nm Properties of Quantum Dot: Fluorescent Small size Usage of Quantum Dot

Optimisation of the synthesis and modification of CdTe quantum dots for enhanced live cell imaging Journal of Materials Chemistry, 12th June 2006, Stephen J. Byrne.

Purpose Relationship among the Raman spectrum, fluerescent, and the size of quantum dot; Connection between CdTe quantum dot and its “coat” Material- 3-Mercaptopropionic acid-stablisied QDs desolved in water

Fluorescent Formula of size and fluorescent: Measurement (instrument) +1.0064 λ-194.84 Measurement (instrument) λ=578.5 nm λ=590.5 nm

Raman Results: Analysis of picture __619nm __615nm __590nm __563nm

Connection Comparison of two different states of one quantum dot: Conclusion: __soluble __condense

Prospect More data Insurance of the repeatability of data Deeper insight of pictures and statistics Thank you~

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