Irradiated MnS nanostructures: Surface wettability and photoluminescence properties

Manganese sulfide nanostructures with various dimensions were obtained by irradiating electrodeposited thin films. The irradiation dose could be used to control the diameter of the electrodeposited nanostructures within the range of nanometer scale. This study reports the effect of irradiation of 7 MeV electron beam on the surface wettability and optical properties of MnS nanostructured thin films. The photoluminescence intensity was found to increase with increase in the absorbed dose from 10 to 50 kGy. The fluence of the electron beam was 2×1013 electrons/cm2. The crystal size was found to decrease upon electron beam irradiation and the materials exhibit poor crystallization. Similar results were also observed in the X-ray diffraction studies, where peak intensity decreased upon electron beam irradiation.

Mechanical energy of electrons changes the surface morphology at low electron dose and the thermal energy changes the film surface at high electron dose. Surface energy changes the optical properties of manganese sulfide.Figure optionsDownload as PowerPoint slideHighlights
► Nanopetals of flower, bitter gourd structure and nanofibres network like structure is synthesized by very simple and inexpensive method.
► Materials show photoluminescence property after irradiation.
► Materials become more hydrophilic with electron irradiation.
► This method is used for synthesis of different semiconducting material with different morphology.