Characterization and Photovoltaic Studies of Capped ZnS, CdS and Cd1-xZnxS (x=0.025) Nanoparticles

Capped ZnS, Cd1-xZnxS (x=0.025) and CdS nanoparticles (NPs) were prepared by co-precipitation method using mercaptoethanol as capping agent. X-ray diffraction (XRD), photoluminescence (PL) and optical absorption measurements were performed to characterize their structural and optical properties. The lattice constants and average crystallite size of cubic phase of capped ZnS, Cd1-xZnxS and CdS NPs calculated from the XRD measurement. The quantum confinement effect on the NPs has been observed in the optical analysis. In addition, it is seen that the luminescence band of Cd1-xZnxS NPs enhances with the presence of Zn content. The incident photon to electron conversion efficiency (IPCE) and current density (J) - voltage (V) measurements exhibited that Capped Cd1-xZnxS (x=0.025) NPs coated on the TiO2 NWs has better performance compare to capped ZnS and CdS NPs on the TiO2 NWs. Capped Cd1-xZnxS (x=0.025) NPs can be promising material to improve the solar cell performance

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1. Akturk A., Tas H., Koksal K., Sahin M. 2016. The Electronic and Optical Properties of a Triexciton in CdSe/ZnS Core/Shell Quantum dot Nanocrystals, Philosophical Magazine, 96 (6): 584-595.
2. Koc F., Koksal K., Sahin M. 2017. Effect of a Buffer Layer between the Shell and Ligand on the Optical Properties of an Exciton and Biexciton in type-II Quantum dot Nanocrystals, Philosophical Magazine, 97 (3): 201-211.
3. Horoz S., Lu L., Dai Q., Chen J., Yakami B., Pikal J.M., Wang W., Tang J. 2012. CdSe Quantum dots Synthesized by Laser Ablation in Water and Their Photovoltaic Applications, Applied Physics Letters, 101: 223902.
4. Tilley R.D. 2008. Synthesis and Applications of Nanoparticles and Quantum Dots, Chemistry in New Zealand, 146-150.
5. Xu X., Hu L., Gao H., liu S., Wageh S., Al-Ghamdi A.A., Alshahrie A., Fang X. 2015. Controlled Growth from ZnS Nanoparticles to ZnS–CdS Nanoparticle Hybrids with Enhanced Photoactivity, Advanced Functional Materials, 25 (3): 445-454.
6. Goodwin J.W., Hearn J., Ho C.C., Ottewill R.H. 1974. Studies on the Preparation and Characterisation of Monodisperse Polystyrene Laticee, Colloid and Polymer Science, 252:464-471.
7. Murray C.B., Norris D.J., Bawendi M.G. 1993. Synthesis and Characterization of Nearly Monodisperse CdE (E = S, Se, Te) Semiconductor Nanocrystallites, Journal of the American Chemical Society, 115: 8706.
8. Potter B.G., Simmons J.H. 1988. Quantum Size Effects in Optical Properties of CdS-glass Composites, Physical Review B, 37: 10838.
9. Liu J., Sheina E., Kolawlewski T., Mccullough R.D. 2002. Angewandte Chemie International Edition, Tuning the Electrical Conductivity and Self-assembly of Regioregular Polythiophene by Block Copolymerization: Nanowire Morphologies in New Di- and Triblock Copolymers, 41: 3259.
10. Watson K.J., Zhu J., Nguyen S.T., Mirkin C.A. 2000. Redox-Active Polymer-Nanoparticle, Hybrid Materials Pure and Applied Chemistry, 72: 67-72.
11. Horoz S., Dai Q., Maloney F.S., Yakami B., Pikal J.M., Zhang X., Wang J., Wang W., Tang J. 2015. Absorption Induced by Mn Doping of ZnS for Improved Sensitized Quantum-Dot Solar Cells, Phys. Rev. Applied, 3: 024011.
12. So W.-W., Jang J.-S., Rhee Y.-W., Kim K.-J., Moon S.-J. 2001. Preparation of Nanosized Crystalline CdS Particles by the Hydrothermal Treatment, Journal of Colloid and Interface Science, 237: 136.
13. Bhattacharjee B., Ganguli D., Iakoubovskii K., Stesmans A., Chaudhuri S. 2002. Synthesis and Characterization of sol-gel Derived ZnS: Mn2+ Nanocrystallites Embedded in a Silica Matrix, Bulletin of Materials Science, 25: 175-180.
14. Kripal R., Gupta A.K., Mishta S.K., Srivastava K., Pandey A.C., Prakash S.G. 2010. Photoluminescence and Photoconductivity of ZnS:Mn(2+) Nanoparticles Synthesized via CoPrecipitation Method, Spectrochimica Acta Part A, 76: 523.
15. Thambidurai M., Muthukumarasamary N., Agilan S., Sabari N., Murugan N., Balasundaraprabhu R. 2011. Structural and Optical Characterization of Ni-doped CdS Quantum dots, Journal of Material Science, 46: 3200-3206.
16. Taylor A., Sinclair H. 1945. On the Determination of Lattice Parameters by the Debye- Scherer Method, Proceedings of the Physical Society, 57: 126.
17. Parvaneh I., Samira S., Mohsen N. 2015. Characterization of ZnS Nanoparticles Synthesized by Co-precipitation Method, Chinese Physics B, 24(4): 046104.
18. Rodriguez P., Muñoz-Aguirre N., San-Martín Martinez E., González de la Cruz G., Tomas S.A., Zelaya Angel O. 2008. Synthesis and Spectral Properties of Starch Capped CdS Nanoparticles in Aqueous Solution, Journal of Crystal Growth, 310: 160-164.
19. Furdyna J.K.J. 1988. Diluted Magnetic Semiconductors, Appl. Phys., 64: R29.
20. Kumar S., Kumar S., Jain S., Verma N.K. 2012. Magnetic and Structural Characterization of Transition Metal Co-doped CdS Nanoparticles, Applied Nanoscience, 2: 127-131.
21. Khamala B., Franklin L. Malozovsky Y., Stewart A., Saleem H., Bagayoko D. 2016. Calculated Electronic, Transport and Bulk Properties of Zinc Blende Zinc Sulphide (zb-ZnS), Computational Condensed Matter., 6: 18-23.
22. Elilarassi R., Maheshwari S., Chandrasekaran G. 2010. Structural and Optical Characterization of CdS Nanoparticles Synthesized using a Simple Chemical Reaction Route, Rapid Communications, 4: 309-312.
23. Zhong X., Feng Y., Knoll W., Han M. 2003. Alloyed ZnxCd1-xS Nanocrystals with Highly Narrow Luminescence Spectral Width, J. Am. Chem. Soc., 125: 13559-13563.
24. Yang P., Lu M. K., Song C. F., Liu S. W., Chu D., Yuan D. R., Cheng X. F. 2003. Preparation and Tunable Photoluminescence Characteristic of Ni2+: SrAl2O4, Optical Materials., 24: 575.
25. Kim H.J., Kim J.H., Durga I.K., Punnoose D., Kundakarla N., Reddy A.E., Rao S.S. 2016. Densely Packed Zinc Sulfide Nanoparticles on TiO2 for hindering Electron Recombination in dye Sensitized Solar Cells, New Journal of Chemistry, 40: 9176-9180.