Investigation On The Influence of Varying Substrate Temperature On The Physical Features of Yttrium Doped Cadmium Selenide Thin Films Materials

Akpu, Nwamaka I.; A.D, Asiegbu; L.A, Nnanna; Ikhioya, Imosobomeh L.

doi:10.14445/23500301/ijap-v8i2p106

Cited by 9 publications

(3 citation statements)

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“…An extremely significant technology is the electrochemical deposition method combining layers of readily available, lowcost base materials with special metals that have similar properties. Their use is expanded to include jobs that would not have been feasible in previous circumstances (Aghahosseini & Breyer;, Heine, 2015, Carlie, et al, 2010,;Akpu, et al, 2021;, Ikhioya, et al, 2020, Ikhioya, et al, 2019, Ikhioya, et al, 2020;Udofia, et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Impact of deposition voltage on the physical properties of rare earth element doped strontium sulphide for optoelectronic application

Samuel,

Ojoba,

Ogherohwo

et al. 2024

Nig. J. Technol. Dev.

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In this study, electrochemical deposition was used to synthesize SrS-doped zirconium materials at a varying voltage of deposition. The XRD result shows that SrS/Zr has a prominent peak intensity corresponding to 2theta values of 26.45o , 33.86o , 38.01o , and 51.49o . The crystal lattice is shown by the prominent peak intensity with higher 2theta degree values; the appearance of an unindexed peak is caused by the substrate utilized for the deposition. SrS surface morphology reveals a Clove-like surface with precipitate visible in the SrS micrograph; the large grain size on the surface of the substrate exhibits photon absorption but lacks any signs of pinholes. At the introduction of zirconium as a dopant to the SrS precursor, there was a drastic change in the precursor which is also noticed on the surface micrograph of the analyzed films. The films show a decrease in thickness from 129.14 to 120.09 nm and an increase in film resistivity from 1.24 x 109 to 1.29 x 109 ohm.m, which further led to a decrease in conductivity from 8.06 x 108 to 7.75 x 108 S/m. The impact of the deposition voltage on the reflectance reveals that lower voltage will stabilize the reflectance of SrS/Zr which will be useful for photovoltaic applications. SrS has an energy bandgap of 1.50 eV while SrS/Zr with bandgap energy of 2.00 – 2.50 eV.

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Section: Introductionmentioning

confidence: 99%

Impact of deposition voltage on the physical properties of rare earth element doped strontium sulphide for optoelectronic application

Samuel,

Ojoba,

Ogherohwo

et al. 2024

Nig. J. Technol. Dev.

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“…Telluride-based catalysts are effective in dyesensitized solar cells. Metal tellurides have been synthesized using various methods, including PVD, solid-state metathesis, co-reduction, solvo (hydro)thermal, MOCVD, nonaqueous colloidal synthesis, microwave-assisted techniques, and electrodeposition [23][24][25][26][27][28][29][30][31][32]. Anand and Zaidan claim that there are no reports on NiTe thin films produced through electrodeposition because of the complexity of depositing a sufficient amount of Te into the film [27].…”

Section: Introductionmentioning

confidence: 99%

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2023

Asian J. Nanosci. Mater.

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In this research study, NiTe and NiTe/Mo were synthesized using an electrochemical deposition technique. The XRD spectrum displayed diffraction peaks at the (111), ( 200), ( 210), ( 211), (300), and (311) planes which corresponded to 13.22 o , 16.95 o , 18.85 o , 25.93 o , 30.84 o , and 32.98 o for NiTe and 13.41 o , 16.84 o , 18.85 o , 25.93 o , 30.84 o , 32.98 o for NiTe/Mo.The undoped film displays melted wax with oil splatter. The reaction between the transition metal and chalcogenide material is exposed by the nanoparticle. The film showed how the wax was transformed into stone-like nanoparticles at 40 o C. The U.V. area had the most absorbance and reflectance, yet transmittance grew as the wavelength grew. Adding molybdenum raised the precursor temperature, increasing the thickness from 132.02 to 150.21 nm and lowering the conductivity. Promising materials for solar devices are made possible by the synthesized materials' enhanced resistivity. A bandgap energy of 1.18 to 2.22 eV was discovered.

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“…Numerous researches have been carried out on the deposition, characterization and possible application of metal selenides such as CdSe, CuSe, CoSe, ZnSe, SnSe [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Generally, selenide nano materials have been instrumental in production of photovoltaic, electronics and optoelectronic devices such as laser materials, LEDs, sensors, diodes, transistors, solar cells etc [3,5,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Impact of temperature difference on the features of spray deposited yttrium doped cobalt selenide (YCoSe) thin films for photovoltaic application

Akpu,

Okpechi,

Elizabeth

et al. 2023

Afr. Sci. Rep.

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In this investigation, spray deposited yttrium doped cobalt selenide (YCoSe) thin materials were synthesized in soda lime glass and the impact of substrate temperature (140 oC, 160 oC, 180 oC and 200 oC) on their elemental composition, surface morphology, structural, electrical and optical properties were investigated using scanning electron microscopy-SEM X-ray diffraction –XRD, four-point probe and UV-VIS spectrophotometer respectively. The EDX plots of the deposited undoped and Y-doped cobalt selenide revealed the major elements: cobalt, selenium and yttrium. This confirms the deposition of CoSe and Y-doped CoSe thin materials. The morphology of undoped CoSe thin materials was very rough containing randomly oriented non-uniform thin particles while addition of Y dopant (0.1 mol%) at substrate temperature of 140 oC gave a homogenous distribution of compact rectangular-like nanograins. The XRD result shows that the films are cubic polycrystalline in nature and the film grown at substrate temperature of 180 oC was seen to give the most excellent crystalline quality and a preferential orientation along (111) direction. From electrical results it was observed that increase in substrate temperature increased the film thickness with decreased resistivity and increased conductivity. The optical properties were found to vary with substrate temperature despite the fact that the variation was not totally linear, as the film deposited at substrate temperature of 160 oC deviated from the linearity in all the optical properties. The energy band gap of the deposited samples ranges from 1.25 eV–1.75 eV. The materials produced could be used in the production of photovoltaic devices.

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Investigation On The Influence of Varying Substrate Temperature On The Physical Features of Yttrium Doped Cadmium Selenide Thin Films Materials

Cited by 9 publications

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Impact of deposition voltage on the physical properties of rare earth element doped strontium sulphide for optoelectronic application

Impact of deposition voltage on the physical properties of rare earth element doped strontium sulphide for optoelectronic application

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Impact of temperature difference on the features of spray deposited yttrium doped cobalt selenide (YCoSe) thin films for photovoltaic application

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