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Solid state synthesis of CdS quantum dots through laser direct writing
- Source :
- 15th International Conference on Concentrator Photovoltaic Systems (CPV-15)
- Publication Year :
- 2019
- Publisher :
- AIP Publishing, 2019.
-
Abstract
- The synthesis of colloidal photo-luminescent semiconductor quantum dots (QDs), belonging to II-VI groups, even from single source precursors is presented. Since three decades their synthesis has been pursued implementing new and easier synthetic conditions that standardize their production. In this work is reported the production of luminescent of CdS QDs in a polymeric film induced by laser processing (www.miledi-h2020.eu/). A film of PMMA doped with two types of precursors (cadmium xanthates) is irradiated with an UV laser source with different energy doses. The structured film will then be observed with confocal fluorescent microscope. The interesting results shows that the two different xanthates display a different behavior under the laser source even if their absorption spectrum is similar. The second interesting result is that the effect of the laser is the production luminescent pattern only for certain fluences and that the same film treated with the temperature did not show any luminescence.The synthesis of colloidal photo-luminescent semiconductor quantum dots (QDs), belonging to II-VI groups, even from single source precursors is presented. Since three decades their synthesis has been pursued implementing new and easier synthetic conditions that standardize their production. In this work is reported the production of luminescent of CdS QDs in a polymeric film induced by laser processing (www.miledi-h2020.eu/). A film of PMMA doped with two types of precursors (cadmium xanthates) is irradiated with an UV laser source with different energy doses. The structured film will then be observed with confocal fluorescent microscope. The interesting results shows that the two different xanthates display a different behavior under the laser source even if their absorption spectrum is similar. The second interesting result is that the effect of the laser is the production luminescent pattern only for certain fluences and that the same film treated with the temperature did not show any luminescence.
- Subjects :
- Materials science
Absorption spectroscopy
business.industry
Doping
quantum dots
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Laser
01 natural sciences
quantum dots, laser patterning
0104 chemical sciences
law.invention
Colloid
Quantum dot
law
Fluorescence microscope
Optoelectronics
Laser patterning
Irradiation
0210 nano-technology
Luminescence
business
Subjects
Details
- ISSN :
- 0094243X
- Database :
- OpenAIRE
- Journal :
- 15th International Conference on Concentrator Photovoltaic Systems (CPV-15)
- Accession number :
- edsair.doi.dedup.....bbc7f0102f795eae78643fe4d4036ecf