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Enhanced Photocurrent from CdS Sensitized ZnO Nanorods
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 Title & Authors
Enhanced Photocurrent from CdS Sensitized ZnO Nanorods
Nayak, Jhasaketan; Son, Min-Kyu; Kim, Jin-Kyoung; Kim, Soo-Kyoung; Lee, Jeong-Hoon; Kim, Hee-Je;
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Structure and optical properties of cadmium sulphide-zinc oxide composite nanorods have been evaluated by suitable characterization techniques. The X-ray diffraction spectrum contains a series of peaks corresponding to reflections from various sets of lattice planes of hexagonal ZnO as well as CdS. The above observation is supported by the Micro-Raman spectroscopy result. The optical reflectance spectra of CdS-ZnO is compared with that of ZnO where we observe an enhanced absorption and hence diminished reflection from CdS-ZnO compared to that from only ZnO. A very small intensity of the visible photoluminescence peak observed at 550 nm proves that the ZnO nanorods have very low concentrations of point defects such as oxygen vacancies and zinc interstitials. The photocurrent in the visible region has been significantly enhanced due to deposition of CdS on the surface of the ZnO nanorods. CdS acts as a visible sensitizer because of its lower band gap compared to ZnO.
Nanorod;Composite nanostructures;Raman spectrum;Photocurrent;
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Metals and materials international, 2014. vol.20. 2, pp.337-342 crossref(new window)
Nanostructure CdS/ZnO heterojunction configuration for photocatalytic degradation of Methylene blue, Physica B: Condensed Matter, 2018, 534, 56  crossref(new windwow)
Control of morphology and orientation of electrochemically grown ZnO nanorods, Metals and Materials International, 2014, 20, 2, 337  crossref(new windwow)
Photosensitization of ZnO nanowire-based electrodes using one-step hydrothermally synthesized CdSe/CdS (core/shell) sensitizer, Solar Energy, 2016, 125, 125  crossref(new windwow)
K. Takanezawa, K. Hirota, Q.S. Wei, K. Tajima, K. Hashimoto, Efficient Charge Collection with ZnO Nanorod Array in Hybrid Photovoltaic Devices, J. Phys. Chem. C, Vol-111, pp. 7218-7223, 2007. crossref(new window)

J. B. Baxter, E. S. Aydil, Nanowire-based dyesensitized solar cells, Appl. Phys. Lett., Vol-86, pp. 053114-053116, 2005. crossref(new window)

K.S. Leschkies, D. J. Norris,; E. S. Aydil, Photosensitization of ZnO Nanowires with CdSe Quantum Dots for Photovoltaic Devices, Nanoletters, Vol-7, pp. 1793-1798, 2007. crossref(new window)

M. W. Xiao, L. S. Wang, Y. D. Wu, X. J. Huang, Z. Dang, Preparation and Characterization of CdS nanoparticles decorated into titanate nanotubes and their photocatalytic properties, Nanotechnology, Vol- 19, pp. 015706, 2008. crossref(new window)

W. Lee, S.K. Min, V. Dash, S.B. Ogale, S.H. Han, Chemical bath deposition of CdS quantum dots on vertically aligned ZnO nanorods for quantum dotssensitized solar cells, Electrochemistry Communications, Vol-11, 103-106, 2009. crossref(new window)

L. Vayssieres, On the design of advanced Metal Oxide Nanomaterials, Int. J. Nanotechnology, Vol-1, 1-41, 2004. crossref(new window)

Y.K. Tseng, C.T. Chia, C.Y. Tsay, L.J. Lin, H.M. Cheng, C. Y. Kwo, C. Chen, Growth of Epitaxial Needle like ZnO Nanowires on GaN Film, J. Electrochem. Soc., Vol-152, G95-G98, 2005. crossref(new window)

W.Q. Han, A. Zettl, GaN nanorods coated with pure BN, Appl. Phys. Lett., Vol-81, pp. 5051-5053, 2002. crossref(new window)

D.H. Zhang, Z.Y. Xue, Q.P. Wang, The mechanism of blue emission from ZnO films deposited on glass substrates by rf magnetron sputtering, J. Phys. D; Appl. Phys., Vol-35, pp. 2837, 2002. crossref(new window)

X.Q. Meng, D.X. Zhao, J.Y. Zhang, D.Z. Shen , Y.M. Lu, X.W. Fan, X.H. Wang, Photoluminescence properties of single-crystalline ZnO/CdS core/shell one dimensional nanostructures, Materials Letters, Vol-61, 3535-3538, 2007. crossref(new window)

Q. Xiao, C. Xiao, Surface-defect-states photoluminescence in CdS nanocrystals prepared by onestep aqueous synthesis method, Appl. Surf. Sci., Vol- 255, pp. 7111-7114, 2009. crossref(new window)

M. Agata, H. Kurase, S. Hayashi, K. Yamamoto, Photoluminescence spectra of gas-evaporated CdS microcrystals, Solid. Stat. Comm., Vol-76, pp. 1061- 1065, 1990. crossref(new window)

J. Jie, G. Wang, Y. Chen, X. Han, Q. Wang, B. Xu, J.G. Hou, Synthesis and optical properties of well-aligned ZnO nanorod array on an undoped ZnO film, Appl. Phys. Lett., Vol-86, 031909-031911, 2005. crossref(new window)

P. Nandakumar, C. Vijayan, M. Rajalakshmi, A.K. Arora, Y. V. G. S. Murti, Raman spectra of CdS nanocrystals in Nafion: longitudinal optical and confined acoustic phonon modes, Physica E, Vol-11, 377-383, 2001. crossref(new window)

G. Wang, X. Yang, F. Qian, J.Z. Zhang and Y. Li; Double-sided CdS and CdSe Quantum Dot Cosensitized ZnO Nanowire Array for Photoelectrochemical Hydrogen Generation, Nanoletters, Vol-10, pp. 1088-1092, 2010. crossref(new window)

S. Hotchandani, P.V. Kamat, Charge-transfer processes in coupled semiconductor systems. Photochemistry and photoelectrochemistry of the colloidal cadmium sulfide-zinc oxide system, J. Phys. Chem., Vol-96, 6834-6839, 1992.