Highly luminescent PbS/ZnS nanoparticles synthesized by a microwave method.
Nanoparticles with PbS core of 12 nm and shell of approximately 3 nm were synthesized at PbS:ZnS ratios of 1.01:0.1 using Merca Ptopropionic Acid as stabilizing agent. PbS/ZnS nanoparticles present a dramatically increase of Photoluminescence intensity, confirming the confinement of the PbS core by increasing the Quantum Yield from 0.63 to 0.92 by the addition of the ZnS shell. In this case, the synthesis by microwave method allows obtaining nanoparticles with enhanced optical characteristics in shorter reaction time than those of nanoparticles synthesized by colloidal method.
Thelma
T
Serrano
Alejandro
A
Vazquez
Idalia
I
Gómez
D006361:Heating / Q000379:methods*; D007854:Lead / Q000737:chemistry* / Q000528:radiation effects; D008027:Light; D008163:Luminescent Measurements / Q000379:methods*; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects; D008872:Microwaves; D010316:Particle Size; D011829:Radiation Dosage; D012542:Scattering, Radiation; D018036:Selenium Compounds / Q000737:chemistry* / Q000528:radiation effects; D013499:Surface Properties / Q000528:radiation effects; D017967:Zinc Compounds / Q000737:chemistry* / Q000528:radiation effects
D018036:Selenium Compounds; D017967:Zinc Compounds; C088065:lead selenide; D007854:Lead; C044696:zinc selenide