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Author (up) Sakthivel, P.; Mangalaraja, R.V.; Ramalingam, G.; Sakthipandi, K.; Gowtham, V. doi  openurl
  Title Synthesis, Structure, Morphology, Element composition, Electrochemical, and Optical studies of Zn0.98-XMn0.02CeX Quantum dots Type
  Year 2023 Publication Spectrochimica Acta-Part A: Molecular and Biomolecular Spectroscopy Abbreviated Journal Spectrochim. Acta A Mol. Biomol. Spectrosc.  
  Volume 303 Issue Pages 123140  
  Keywords ZnS; HR-TEM; Cyclic voltammetry; Band gap; Rare earth; Photoluminescence  
  Abstract Quantum dots (QDs) are semiconductors whose size falls in a range between 1 and 10 nm; they are generally known as zero-dimension materials. It finds various applications in optical industries including light-emitting diodes, display technology, imaging, and labelling. ZnS is one of the excellent QDs in its class of II-VI semiconductors. In this paper, It is reported that the preparation of Mn-doped ZnS and Mn, Ce co-doped ZnS QDs using facile co-precipitation technique. XRD and HR-TEM results confirmed the cubic structure, particle size, and phase of the synthesized particles, and the crystallite is measured as -2 nm. The surface morphology, elemental analysis, and FT-IR spectra revealed the purity of the samples and confirmed the presence of dopants as expected. Cyclic voltammetry studies expressed the electrochemical behaviour of the samples, which increased as a function of Ce3+ doping concentration. UV-visible absorbance and transmittance spectra disclosed the optical characteristics of the samples. A wide band gap (4.02 eV) was received for 2% Ce-doped Zn: MnS QDs. Week Blue and strong yellow emissions were received for 4% Ce-doped Zn:MnS QDs. Whereas, high intensity red-emission was received for 2% Ce-doped Zn:MnS QDs. The different colour emissions are discussed in terms of defects produced.  
  Corporate Author Thesis  
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  Series Volume Series Issue Edition  
  ISSN 1386-1425 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001058679500001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1885  
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