Characterization of V2O5 nanorods grown by spray pyrolysis technique

Abstract

V 2 O 5 nanorods (NRs) were prepared by a chemical spray pyrolysis (CPS) onto heated glass substrates. The effects of vanadium solution concentration, deposition spray rate and substrate temperature on the structural, morphological and optical properties prepared thin films were investigated. X-ray diffraction (XRD) results indicated that the thin films have orthorhombic structures with preferential orientations along the (110) direction. Field emission scanning electron microscopy (FESEM) observations showed that rod-like shaped morphology is in the 100-150 nm diameter range and in the 1-3 lm length range. Optical transmittance in the visible range changes to reach a maximum value of approximately 80 % and the band gap energy has been found in the range of 2.13-2.6 eV. Photoluminescence (PL) spectra revealed intensive and sharp green light emission at about 534 nm with high intensity. V 2 O 5 thin films can be used as material in visible electronic and optoelectronic applications.

Hierarchically Structured 3D Nanoporous Vanadium Oxide Transparent Electrodes for Next‐Generation Supercapacitors

“…Among the various synthesis methods for nanostructured V 2 O 5 electrodes, ASPD has been recognized as the most effective nanostructure synthesis technique due to its easy process to synthesize, highly precise and controlled output product within a very short period, and less energy. [25,26] ASPD also offers inherent advantages over conventional SPT in terms of good control of stoichiometry, formation of various nanostructures, and the transparency of the electrode. [27] In this study, the authors presented a different method for the synthesis of 3D structured nanoporous V 2 O 5 transparent electrodes using the automatic spray pyrolysis deposition process.…”

Investigations on The Effect of Cd Dopant on The Properties of 2D Nanostructured Vanadium Oxide Thin Films

“…Among the potential Vanadium Oxide compounds, the stable stage V 2 O 5 has a wide optical bandgap, good chemical and thermal stability, and exceptional thermoelectric properties, making it a likely candidate for use in a variety of sensors and photovoltaic applications. [8][9][10][11] The growth and development of both pure and Cd-doped V 2 O 5 are investigated in this work employing the spray pyrolysis process on glass as the substrate. Based on ionic radius compliance, Cadmium with an ionic radius of 1.44 A o has been considered a viable equivalent for Vanadium with an ionic radius of 1.34 A o .…”

Visible and Infrared Photoresponse in (V0.99Cr0.01)2O3 Epitaxial Films

“…These properties are highly dependent on crystallographic structure, crystal field splitting, and hybridization between O 2 p and V 3 d bands. [11,12] So far, various types of vanadium oxides, such as V 2 O 3 , [13][14][15] VO 2 , [16][17][18][19] and V 2 O 5 , [20][21][22] have been investigated to explore potential technological applications, and it is reported that VO 2 and V 2 O 5 can respond to ultraviolet (UV) light, which is expected to be solar blind or vacuum-UV detectors. [23][24][25][26][27] In particular, doped V 2 O 3 has attracted great attention in making high-performance electrodes.…”