Optical properties of colloidal CdSe quantum dots

Autor: R. Bhattacherjee, Siddhartha Sankar Nath, S. C. Dey
Rok vydání: 2011
Předmět:
Zdroj: Micro & Nano Letters. 6:113
ISSN: 1750-0443
DOI: 10.1049/mnl.2010.0214
Popis: Here the authors report a convenient chemical route for synthesis of CdSe quantum dots (QDs) and their characterisations by transmission electron microscopy and UV/Vis spectroscopy. The size of the prepared QD ranges from 2 to 8 nm. Further, photoluminescence spectroscopy is carried out to explore light-emitting phenomenon of the sample when excited by photons (excitation wavelength 450 nm) and electroluminescence spectroscopy is carried out to ensure the light-emitting phenomenon when biased with electrical energy (voltage). Both the luminescence studies reveal green luminescence and indicate the possible application of CdSe QDs as light-emitting devices.
Databáze: OpenAIRE