Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 19, Issue 7, Pages 4026-4032Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2019.16298
Keywords
CdSe/ZnS; Core-Shell Quantum Dots; Luminescence; Optical Properties; Green and White-Light LEDs
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Funding
- Alagappa University Research Fund-2017 (AURF)
- DST-SERB Govt. of India [EEQ/2016/198]
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Research on CdSe/ZnS core-shell quantum dots (QDs) was synthesized by a chemical route using bio-conjugated organic amino acid (L-Cysteine). The structural, morphological, and optical properties of the nanocrystal powder samples were analyzed using various characterization techniques. The diameter of the resulting QDs was about 3 nm with uniform size distribution. The optical properties QDs exhibited an absorption and emission peak at 515 and 525 nm respectively, at room temperature. The QDs through emission in the spectral range at 516-535 nm is special for their application in green LEDs and white-light generation. The high optical properties performance of the QDs nanocomposites gained indicates that the materials are promising for (LED) applications.
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