Facile synthesis of photoluminescent ZnS and ZnSe nanopowders

Swati V. Pol, Vilas G. Pol, José M. Calderon-Moreno, Stéphanie Cheylan, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


The solid state thermal, one pot, efficient chemical reaction between Zn and S or Se elements in a closed reactor at 650°C/60 min under their autogenic pressure in an inert atmosphere yielded luminescent ZnS and ZnSe semiconducting nanopowders (NPs). Scanning and Transmission electron microscopy measurements confirmed the size and shape of the as formed ZnS and ZnSe NPs. The wide size distributions of ZnS and ZnSe NPs are confirmed by UV-vis and TEM measurements. The crystalline wurtzite phase of ZnS and face centered cubic phase of ZnSe NPs is revealed from XRD and HR-TEM measurements. The obtained Raman scattering bands also supports the formation of pure ZnS and ZnSe phases. At room temperature, a strong visible green emission centered at ∼525 nm is measured for ZnS, while ZnSe NPs showed a broad red emission band extending from 550 to 760 nm. The putative reaction mechanism is based on the low melting and boiling points of reactants (Zn, S and Se) under their autogenic pressure in an inert atmosphere.

Original languageEnglish
Pages (from-to)10462-10466
Number of pages5
Issue number18
StatePublished - 16 Sep 2008


Dive into the research topics of 'Facile synthesis of photoluminescent ZnS and ZnSe nanopowders'. Together they form a unique fingerprint.

Cite this