Please use this identifier to cite or link to this item: https://idr.l1.nitk.ac.in/jspui/handle/123456789/12118
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dc.contributor.authorVaradharajaperumal, S.-
dc.contributor.authorSripan, C.-
dc.contributor.authorGanesan, R.-
dc.contributor.authorHegde, G.-
dc.contributor.authorSatyanarayan, M.N.-
dc.date.accessioned2020-03-31T08:38:41Z-
dc.date.available2020-03-31T08:38:41Z-
dc.date.issued2017-
dc.identifier.citationCrystal Growth and Design, 2017, Vol.17, 10, pp.5154-5162en_US
dc.identifier.urihttps://idr.nitk.ac.in/jspui/handle/123456789/12118-
dc.description.abstractThis paper presents the fabrication and characterization of stoichiometry adjusted Cu2Zn1.5Sn1.2S4.4 thin film (FTO/TiO2/CdS/CZTS/Au) photovoltaic (PV) devices. The PV devices were developed using the window layer of rutile TiO2 nanoarchitecture arrays, i.e., one-dimensional (1D) nanorods and three-dimensional (3D) combined/ hierarchical structures (nanorods with microspheres). Onedimensional (1D) nanorods and 3D combined structures of TiO2 window layers were synthesized by a hydrothermal method with different solvents without any assistance of surfactants and templates. We achieved two kinds of TiO2 nanostructures by tuning the precursor concentrations and volume by keeping a constant growth time and temperature. The detailed structural properties were studied using X-ray diffraction and high resolution transmission electron microscopy. Phase formation and chemical state of the prepared samples were examined by Raman spectroscopy and X-ray photoelectron spectroscopy. The surface morphology and luminescence studies of TiO2 nanostructures were analyzed using field emission scanning electron microscopy and cathodoluminescence techniques. The current-voltage performance of fabricated devices were measured under an AM 1.5 solar simulator. It is observed that combined structure PV device shows better efficiency (1.45%) than the nanorods alone structure (0.55%). Present work is a first attempt made to construct the inverted CZTS based solar cells. This study establishes the window layer of hierarchical TiO2 nanostructures based morphology that offers a great potential for the development of high-efficiency nonstoichiometric CZTS based solar cells. 2017 American Chemical Society.en_US
dc.titleMorphology controlled n-type TiO2 and stoichiometry adjusted p-type Cu2ZnSnS4 thin films for photovoltaic applicationsen_US
dc.typeArticleen_US
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