Structural and optical investigation of semiconductor CdSe/CdS core-shell quantum dot thin films.
Highly luminescent CdSe/CdS core-shell nanocrystals have been assembled on indium tin oxide (ITO) coated glass substrates using a wet synthesis route. The physical properties of the quantum dots (QD) have been investigated using X-ray diffraction, transmission electron microscopy and optical absorption spectroscopy techniques. These quantum dots showed a strong enhancement in the near band edge absorption. The in situ luminescence behavior has been interpreted in the light of the quantum confinement effect and induced strain in the core-shell structure.
Sharma
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AB
Department of Physics, Barkatullah University, Bhopal, M.P. 462026, India.
Sharma
Sudhir Kumar
SK
Sharma
M
M
Pandey
R K
RK
Reddy
D S
DS
D002104:Cadmium / Q000737:chemistry*; D008422:Materials Testing; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D055095:Optics and Photonics; D045663:Quantum Dots; D012643:Selenium / Q000737:chemistry*; D012666:Semiconductors; D013455:Sulfur / Q000737:chemistry*; D013499:Surface Properties; D017971:Tin Compounds / Q000737:chemistry; D014961:X-Ray Diffraction
D017971:Tin Compounds; D002104:Cadmium; D013455:Sulfur; D012643:Selenium; C045358:stannic oxide