Properties of nanocrystalline ZnS:Mn

Synthesis and optical characterization of PVP and SHMP-encapsulated Mn2+-doped ZnS nanocrystals

“…The result of PL measurement performed at room temperature on PVP-capped ZnS:Mn 2 + nanoparticles at exciting wavelength of 310 nm yields two peaks, one at 460 nm and another centered at 584 nm. The observed wavelengths match very well with the literature values [25,[27][28][29]. The first peak is due to sulfur vacancies in the lattice and the second peak is due to the 4 T 1 -6 A 1 transition in Mn 2 + [30,31].…”

Optimized doping concentration of manganese in zinc sulfide nanoparticles for yellow-orange light emission

“…6b and f, which have been observed by many groups [15,[31][32][33][34]. Three mechanisms can be used to explain the red shift: first, it may be due to the high density of surface states or strong electron-phonon coupling effects [31,33,34].…”

Synthesis, characterization and optical properties of water-soluble ZnS:Mn2+ nanoparticles

“…These spectacular results suggested that doped semiconductor nanocrystals form a new class of luminescent materials, with a wide range of applications in, e.g., displays, sensors and lasers [9]. Mn 2 + doped ZnS nanocrystals can be obtained in many ways such as a spray-based method [10], mechnochemical route [11], ultrasonic radiation method [12], synthesis by g-irradiation of solution [13], chemical precipitation method [14][15][16][17][18], organometallic method [18], colloidal chemical treatment method [19], micro emulsion with hydrothermal treatment hydrolysis method [20], polymerization [21], reverse micelle method [22] and sol-gel method [23]. Although various methods are available for the synthesis of ZnS:Mn 2 + nanoparticles, we use chemical precipitation method to get the least cluster formation.…”