74 citations
5 papers
Clustered vacancies in ZnO: Chemical aspects and consequences on physical properties
S. Pal, N. Gogurla, Avishek Das +7
Chemical nature of point defects, their segregation, cluster or complex formation in ZnO is an important area of investigation. In this report, 1.2 MeV Ar ion beam is used to incor…
Optical property modification of ZnO: Effect of 1.2 MeV Ar irradiation
Soubhik Chattopadhyay, Sreetama Dutta, Palash Pandit +7
We report a systematic study on 1.2 MeV Ar^8+ irradiated ZnO by x-ray diffraction (XRD), room temperature photoluminescence (PL) and ultraviolet-visible (UV-Vis) absorption measure…
Defects induced ferromagnetism in Mn doped ZnO
S. Chattopadhyay, S. K. Neogi, A. Sarkar +4
Single phase Mn doped (2 at %) ZnO samples have been synthesized by solid-state reaction technique. Before the final sintering at 500 C, the mixed powders have been milled for diff…
Controlled defects in ZnO by low energy Ar irradiation
Soubhik Chattopadhyay, Sreetama Dutta, D. Jana +6
We report interesting observations in 1.2 MeV Ar8+ ion irradiated ZnO which, to the best of our knowledge, have not been published earlier and will be useful for the scientific com…
Synthesis and characterization of single phase Mn doped ZnO
Soubhik Chattopadhyay, S. Dutta, Aritra Banerjee +4
Different samples of Zn1-xMnxO series have been prepared by conventional solid state sintering method. It has been identified, up to what extent of doping enable us to synthesize s…