Luminescence tuning in a ZnS:Mn system by C6+ (80 MeV) ion beam irradiation

作者：Tripathi Balram^*; Tripathi G; Dixit Ambesh; Vijay Y K

来源：Radiation Effects and Defects in Solids-Incorporating Plasma Science and Plasma Technology, 2015, 170(5): 399-406.

DOI：10.1080/10420150.2014.983106

• ZnS:Mn
• SHI
• PL and UV-VIS

Irradiation of solids with energetic particles, such as electrons or ions, normally gives rise to the formation of atomic defects in the target and changes the material's properties. However, inspite of the damage, irradiation may overall have a beneficial effect on the target. In the present study, Mn-doped ZnS nanocrystals have been synthesized using an aqueous solution method and irradiated by a C6+ (80MeV) ion beam at fluence (1x10(13)ions/cm(2)). A photoluminescence study has been carried on in a ZnS:Mn system, which results in emission peaks corresponding to surface states and Mn2+ emission, confirming that optical luminescence in semiconductor nanocrystals can be tuned using impurity concentration as well as swift heavy ion irradiation between nanocrystals band gap and the bulk band gap values.

• 出版日期2015-5-4