Volume 4, Issue 1, June 2020, Page: 7-14
Structural, Optical and Electrical Properties of Eu-doped CuS Nanoparticles Synthesized Through the Aqueous Route
Nouha Loudhaief, Faculty of Sciences of Bizerte LR01ES15, University of Carthage, Bizerte, Tunisia
Mohamed Ben Salem, Faculty of Sciences of Bizerte LR01ES15, University of Carthage, Bizerte, Tunisia
Mouldi Zouaoui, Faculty of Sciences of Bizerte LR01ES15, University of Carthage, Bizerte, Tunisia
Received: Nov. 18, 2019;       Accepted: Nov. 29, 2019;       Published: May 28, 2020
DOI: 10.11648/j.ep.20200401.12      View  266      Downloads  75
Eu-doped CuS nanoparticles stabilized by L-cysteine were synthesized by a low-temperature soft aqueous route. X-Ray Diffraction (XRD) patterns of the synthesized products reveal the formation of the hexagonal structure of covellite CuS. Scanning Electron Microscopy (SEM) images depict that the as-prepared nanoparticles exhibit relatively sphere like shaped morphology. Transmission Electron Microscopy (TEM) analyses show that the average size of the nanoparticles was found to be reduced with increasing the Eu concentration. UV-Visible optical absorption measurements reveal that the optical band gap is increased with increasing the Eu concentration, showing the presence of a blue shift due to quantum size effects. Impedance spectra were well modelled by introducing an electrical equivalent circuit. The electrical conductivity was found to be increased with increasing the Eu concentration. The temperature dependence of the DC conductivity confirmed the semiconducting nature of the as-prepared nanoparticles and was found to obey the Arrhenius law with two activation energies. The frequency dependence of the AC conductivity has been analyzed by Jonscher’s power law suggesting the non-overlapping small polaron tunneling (NSPT) type of conduction. The polaron hopping energy was found to be increased with increasing the Eu concentration. The dielectric constant of the as-synthesized nanoparticles was found to be decreased with the increase in Eu concentration. The dielectric loss tangent was found to be decreased and then increased at higher frequencies with increasing the Eu concentration.
Nanoparticles, Chemical Synthesis, Optical Properties, Electrical Properties, Dielectric Response
To cite this article
Nouha Loudhaief, Mohamed Ben Salem, Mouldi Zouaoui, Structural, Optical and Electrical Properties of Eu-doped CuS Nanoparticles Synthesized Through the Aqueous Route, Engineering Physics. Vol. 4, No. 1, 2020, pp. 7-14. doi: 10.11648/j.ep.20200401.12
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
S. Sagadevan, and J. Podder, “Investigation on structural, surface morphological and dielectric properties of Zn-doped SnO2 nanoparticles,” Mater. Res., vol. 19, pp. 420-425, 2016.
J. Kundu, and D. Pradhan, “Controlled synthesis and catalytic activity of copper sulfide nanostructured assemblies with different morphologies,” Mater. Interfaces, vol. 6, pp. 1823-1834, 2014.
W. Liang, and M. H. Whangbo, “Conductivity anisotropy and structural phase transition in Covellite CuS,” Solid State Commun., vol. 85, pp. 405-408, 1993.
X. L. Yu, C. B. Cao, H. S. Zhu, Q. S. Li, C. L. Liu, and Q. H. Gong, “Nanometer-sized copper sulfide hollow spheres with strong optical-limiting properties,” Adv. Funct. Mater., vol. 17, pp. 1397-1401, 2007.
M. Tanveer, C. B. Cao, Z. Ali, I. Aslam, F. Idrees, W. S. Khan, F. K. But, M. Tahir, and N. Mahmood, “Template free synthesis of CuS nanosheet-based hierarchical microspheres: an efficient natural light driven photocatalyst,” CrystEngComm., vol. 16, pp. 5290-5300, 2014.
Y. X. Zhao, and C. Burda, “Development of plasmonic semiconductor nanomaterials with copper chalcogenides for a future with sustainable energy materials,” Energy Environ. Sci., vol. 5, pp. 5564-5576, 2012.
H. Lee, S. W. Yoon, E. J. Kim, and J. Park, “In-situ growth of copper sulfide nanocrystals on multiwalled carbon nanotubes and their application as novel solar cell and amperometric glucose sensor materials,” Nano Lett., vol. 7, pp. 778-784, 2007.
C. H. Lai, K. W. Huang, J. H. Cheng, C. Y. Lee, B. J. Hwang, and L. J. Chen, “Direct growth of high-rate capability and high capacity copper sulfide nanowire array cathodes for lithium-ion batteries,” J. Mater. Chem., vol. 20, pp. 6638-6645, 2010.
G. Ku, M. Zhou, S. Song, Q. Huang, J. Hazle, and C. Li, “Copper sulfide nanoparticles as a new class of photoacoustic contrast agent for deep tissue imaging at 1064 nm,” ACS Nano, vol. 6, pp. 7489-7496, 2012.
N. Sreelekha, K. Subramanyam, D. Amaranatha Reddy, G. Murali, S. Ramu, K. Rahul Varma, and R. P. Vijayalakshmi, “Structural, optical, magnetic and photocatalytic properties of Co doped CuS diluted magnetic semiconductor nanoparticles,” Appl. Surf. Sci., vol. 378, pp. 330-340, 2016.
M. T. Mayer, Z. I. Simpson, S. Zhou, and D. W. Wang, “Ionic-Diffusion-Driven, Low-Temperature, Solid-State Reactions Observed on Copper Sulfide Nanowires,” Chem. Mater., vol. 23, pp. 5045-5051, 2011.
M. Kruszynska, H. Borchert, A. Bachmatiuk, M. H. Rummeli, B. Buchner, J. Parisi, and J. Kolny-Olesiak, “Size and Shape Control of Colloidal Copper (I) Sulfide Nanorods,” ACS Nano, vol. 6, pp. 5889-5896, 2012.
H. B. Wu, and W. Chen, “Synthesis and reaction temperature-tailored self-assembly of copper sulfide nanoplates,” Nanoscale, vol. 3, pp. 5096-5102, 2011.
C. Tan, R. Lu, P. Xue, C. Bao, and Y. Zhao, “Synthesis of CuS nanoribbons templated by hydrogel,” Mater. Chem. Phys., vol. 112, pp. 500-503, 2008.
C. Wu, S. H. Yu, S. Chen, G. Liu, and B. Liu, “Large scale synthesis of uniform CuS nanotubes in ethylene glycol by a sacrificial templating method under mild conditions,” J. Mater. Chem., vol. 16, pp. 3326-3331, 2006.
M. Saranya, C. Santhosh, R. Ramachandran, P. Kollu, P. Saravanan, M. Vinoba, S. K. Jeong, and A. N. Grace, “Hydrothermal growth of CuS nanostructures and its photocatalytic properties,” Powder Technol., vol. 252, pp. 25-32, 2014.
X. S. Hu, Y. Shen, L. H. Xu, Li. M. Wang, and Y. J. Xing, “Preparation of flower-like CuS by solvothermal method and its photodegradation and UV protection,” J. Alloys Compd., vol. 674, pp. 289-294, 2016.
A. Daya Mania, M. Deepaa, P. Ghosalb, and C. Subrahmanyam, “Novel single pot synthesis of metal (Pb, Cu, Co) sulfide nanomaterials-towards a quest for paintable electrode materials that supersedes Pt electrode,” Electrochim. Acta, vol. 139, pp. 365-373, 2014.
W. Wang, and L. Ao, “Synthesis and characterization of crystalline CuS nanorods prepared via a room temperature one-step, solid-state route,” Mater. Chem. Phys., vol. 109, pp. 77-81, 2008.
W. Luo, Y. Liu, and X. Chen, “Lanthanide-doped semiconductor nanocrystals: electronic structures and optical properties,” Sci. China Mater., vol. 58, pp. 819-850, 2015.
K. Mageshwari, S. S. Mali, T. Hemalatha, R. Sathyamoorthy, and P. S. Patil, “Low temperature growth of CuS nanoparticles by reflux condensation method,” Prog. Solid State Chem., vol. 39, pp. 108-113, 2011.
J. W. Shin, and W. J. Cho, “Microwave Annealing Effects of Indium-Tin-Oxide Thin Films: Comparison with Conventional Annealing Methods,” Phys. Status Solidi A., vol. 215, pp. 1700975, 2018.
S. Horoz, B. Yakami, U. Poudyal, J. M. Pikal, W. Wang, and J. Tang, “Controlled synthesis of Eu2+ and Eu3+ doped ZnS quantum dots and their photovoltaic and magnetic properties,” AIP Adv., vol. 6, pp. 045119, 2016.
K. Subramanyam, N. Sreelekha, D. Amaranatha Reddy, G. Murali, K. Rahul Varma, and R. P. Vijayalakshmi, “Chemical synthesis, structural, optical, magnetic characteristics and enhanced visible light active photocatalysis of Ni doped CuS nanoparticles,” Solid State Sci., vol. 65, pp. 68-78, 2017.
J. H. Joshi, D. K. Kanchan, M. J. Joshi, H. O. Jethva, and K. D. Parikh, “Dielectric relaxation, complex impedance and modulus spectroscopic studies of mix phase rod like cobalt sulfide nanoparticles,” Mater. Res. Bull., vol. 93, pp. 63-73, 2017.
S. Sil, J. Datta, M. Das, R. Jana, S. Halder, A. Biswas, D. Sanyal, and P. P. Ray, “Bias dependent conduction and relaxation mechanism study of Cu5FeS4 film and its significance in signal transport network,” J. Mater. Sci. Mater. Electron., vol. 29, pp. 5014-5024, 2018.
A. Rahal, S. Megdiche Borchani, K. Guidara, and M. Megdiche, “Studies of electric, dielectric, and conduction mechanism of LiNiV0.5P0.5O4,” J. Alloys Compd., vol. 735, pp. 1885-1892, 2018.
S. Saha, S. Chanda, A. Dutta, and T. Sinha, “Dielectric relaxation of PrFeO3 nanoparticles,” Solid State Sci., vol. 58, pp. 55-63, 2016.
M. Sassi, A. Bettaibi, A. Oueslati, K. Khirouni, and M. Gargouri, “Electrical conduction mechanism and transport properties of LiCrP2O7 compound,” J. Alloys Compd., vol. 649, pp. 642-648, 2015.
Browse journals by subject