Photostability study of CdTe quantum dots using laser induced fluorescence

Souad A. Elfeky D.D.S.; A. El-Hussein

doi:10.1117/12.2297014

24 April 2018 Photostability study of CdTe quantum dots using laser induced fluorescence

Souad A. Elfeky D.D.S., A. El-Hussein

Proceedings Volume 10711, Biomedical Imaging and Sensing Conference; 1071128 (2018) https://doi.org/10.1117/12.2297014
Event: SPIE Structured Light, 2018, Yokohama, Japan

Abstract

Semiconductor quantum dots (QDs) having high quantum yields and unique photostability. This research studies the optical properties of the synthesized CdTe QDs with two different sizes using Laser induced fluorescence for investigating their photostability. TEM images illustrate that the two prepared QDs sizes are 2.4 and 3.5 nm. FTIR analysis revealed that the prepared QD capped with oleic acid. LIF technique showed that there is a red shift of the fluorescence emission of the bigger size QDs compared to the smaller one. The small size QD has a lower photostability when compared to the big size 2.4 nm. This study introduces guidance adapting CdTe photophysical properties for generalized applications especially biological laser imaging and solar cell applications.

Citation Download Citation

Souad A. Elfeky D.D.S. and A. El-Hussein "Photostability study of CdTe quantum dots using laser induced fluorescence", Proc. SPIE 10711, Biomedical Imaging and Sensing Conference, 1071128 (24 April 2018); https://doi.org/10.1117/12.2297014

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