Growth and characterization of V₂O₅ thin film on conductive electrode

Abstract

Vanadium pentoxide V O thin films were grown at room temperature on ITO coated glass substrates by electrochemical deposition. The resulting films were annealed at 300, 400 and 500°C for 1 h in ambient environment. The effect of heat treatment on the films properties such as surface morphology, crystal structure, optical absorption and photoluminescence were investigated. The x-ray diffraction study showed that the films are well crystallized with temperatures. Strong reflection from plane (400) indicated the film's preferred growth orientation. The V O films are found to be highly transparent across the visible spectrum and the measured photoluminescence quenching suggested the film's potential application in OPV device fabrication.

Inner Encapsulating Approach for Moisture‐Stable Perovskite Solar Cells

“…It is evident that a certain amount of I ions from the perovskite layer migrate toward the top electrode passing through porous PC 61 BM (ETL) by an internal electric field with a Cu electrode. [10,11,16,24] Hence, these ion migrations probably cause the deterioration of the interface (ETL/Cu) in the I-PSCs. In contrast, the sample with BTA-3 showed that a large amount of I ions were found in the position of the perovskite layer.…”

“…improved moisture stability of I-PSCs by inserting a dense and impermeable metal oxide layer, e.g., TiO 2 , AZO, V 2 O 5 , WO 3 , and MoO 3, between the ETL and top electrode. [13][14][15][16] However, because of the complicated and tedious methods involved, such as atomic layer deposition (ALD) and vacuum evaporation deposition, this system cannot be applied to the final goal of commercialization of PSCs, e.g., solution processable perovskite solar cells.…”

Structural, Optical and Electrical Properties of V2O5 Thin films at different Molarities by Spray pyrolysis method

“…The structural analysis of ITO-coated V 2 O 5 thin films with two different molarities was carried out by XRD as shown in [25]. Other peaks are due to the ITO coated glass substrate.…”

Solar Cell Characteristic Studies on Metal Organic Framework/TiO2 Hybrid Solar Cell

“…Where R is the KM function (absolute diffuse reflectance), k is the absorption coefficient and s is the scattering coefficient. In DRS the absorption can be calculated from a plot [k/s*hν] 2 along y-axis and hν along the x-axis [19,20]. The bandgap of the material is obtained by extrapolating a straight line as shown in Fig.…”