Opto-electronic properties of hydrothermally grown rod-like TiO2 nanostructures: potential electron transport layer for photovoltaic devices
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Vivek Dhuliya
Abstract
This study reports the deposition of compact TiO2 (c-TiO2) thin films, which serve as seed layers for the growth of TiO2 nanostructures. Five samples, labeled S1, S2, S3, S4, and S5, were prepared with 2, 4, 6, 8, and 10 deposition cycles of c-TiO2 thin films, respectively. Using the hydrothermal method, rod-like TiO2 nanostructures were successfully grown on these thin films. Field emission scanning electron microscopy images confirmed the formation of rod-like nanostructures with an average length of approximately 0.7 μm, and the number density of the nanorods increased with the seed layer thickness. X-ray diffraction analysis revealed the presence of both anatase and rutile phases of TiO2, with the majority of peaks corresponding to the anatase phase. The UV–Vis transmittance ranged from 60–90 % in the 400–700 nm wavelength range for all five films. The optical band gaps for samples S1, S2, S3, S4, and S5 were 3.11, 3.10, 3.07, 3.05, and 3.05 eV, respectively. Based on the overall characterizations, sample S2 demonstrated the best properties. This study indicates that the TiO2 nanorod layer on the c-TiO2 seed layer effectively enhances the electron transport performance of perovskite-based photovoltaic devices.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Vivek Dhuliya: Data curation, Writing-Original draft preparation, Visualization, Investigation, Software. Vaibhav Kandwal: Characterization, Conceptualization, Investigation. L. P. Purohit: Conceptualization, Methodology, Visualization, Writing-Reviewing and Editing, Supervision.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: V. Dhuliya and L. P. Purohit thank the Uttarakhand State Council for Science and Technology (UCOST), Dehradun, Government of Uttarakhand, for financial support through an R&D Research Project (Project no: UCS&T/R&D-09/21–22/20364/1).
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Data availability: The data that support the findings of this study are available from the corresponding author, [L.P.P.], upon reasonable request.
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Artikel in diesem Heft
- Frontmatter
- Original Papers
- Effect of quenching rate on the phase formation and magnetic properties of Co35Fe10Ni30Ti20Al5 high entropy alloy
- Structural, dielectric and ferroelectric characteristics of (Bi0.9Gd0.1)(Ni0.5Ti0.5)O3 ceramic
- Variations in physicochemical characteristics of bacterial cellulose produced by Acetobacter aceti MTCC 2623 under static culture conditions
- Impact of La substitution on the thermoelectric properties of polycrystalline (Bi, Pb)-2223 below room temperature
- Structural and optical characterizations of zinc oxide nanostructures synthesized at low temperatures via sol–gel technique
- The influences of sintering temperature on structural, morphological, optical properties, and magnetoresistance of tin oxide (SnO2) nanomaterials
- Impact of gadolinium and manganese co-doping on the structural, dielectric and electrical characteristics of BST
- Gamma radiation grafted linear low density polyethylene based proton exchange membrane for fuel cell applications
- Design of N-(benzothiazol-2-yl)benzamide-Pd complexes with amine and diphosphine co-ligands to enhance hydrogen storage: increasing structural diversity while maintaining uniqueness
- Opto-electronic properties of hydrothermally grown rod-like TiO2 nanostructures: potential electron transport layer for photovoltaic devices
- News
- DGM – Deutsche Gesellschaft für Materialkunde
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Effect of quenching rate on the phase formation and magnetic properties of Co35Fe10Ni30Ti20Al5 high entropy alloy
- Structural, dielectric and ferroelectric characteristics of (Bi0.9Gd0.1)(Ni0.5Ti0.5)O3 ceramic
- Variations in physicochemical characteristics of bacterial cellulose produced by Acetobacter aceti MTCC 2623 under static culture conditions
- Impact of La substitution on the thermoelectric properties of polycrystalline (Bi, Pb)-2223 below room temperature
- Structural and optical characterizations of zinc oxide nanostructures synthesized at low temperatures via sol–gel technique
- The influences of sintering temperature on structural, morphological, optical properties, and magnetoresistance of tin oxide (SnO2) nanomaterials
- Impact of gadolinium and manganese co-doping on the structural, dielectric and electrical characteristics of BST
- Gamma radiation grafted linear low density polyethylene based proton exchange membrane for fuel cell applications
- Design of N-(benzothiazol-2-yl)benzamide-Pd complexes with amine and diphosphine co-ligands to enhance hydrogen storage: increasing structural diversity while maintaining uniqueness
- Opto-electronic properties of hydrothermally grown rod-like TiO2 nanostructures: potential electron transport layer for photovoltaic devices
- News
- DGM – Deutsche Gesellschaft für Materialkunde
