Room temperature chemical bath deposition of cadmium selenide, cadmium sulfide and cadmium sulfoselenide thin films with novel nanostructures

VanderHyde, Cephas A.; Sartale, Shrikrishna D.; Patil, Jayant M.; Ghoderao, Karuna P.; Sawant, Jitendra P.; Kale, Rohidas B.

doi:10.1016/j.solidstatesciences.2015.08.007

Cited by 15 publications

(3 citation statements)

References 41 publications

(33 reference statements)

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“…A good understanding of the control over complexing agents, pH, deposition time, and temperature can improve the quality, size, and shape of crystallites. [13] In the photochemical deposition of semiconductors, the photogenerated holes and electrons are generated by the absorption of the photon with energy more significant than the electronic bandgap of the material. [14] The nanostructure of a semiconductor can improve absorption by increasing the internal scattering of incident light within the material and through waveguide effects.…”

Section: Introductionmentioning

confidence: 99%

Monochromatic Photochemical Deposition and Characterization of ZnSe Thin Films

Pawar¹,

Lokhande²,

Kaur³

et al. 2022

ES Energy Environ.

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Zinc selenide (ZnSe) as an II-IV group has attracted attention as a binary semiconductor material due to its superior chemically stability than other semiconducting materials such as zinc sulphide (ZnS). In this work, ZnSe thin film was synthesized using a simple, clean and relatively inexpensive monochromatic photochemical synthesis method at room temperature. The structure of the ZnSe films deposited under different coloured illumination was confirmed by X-ray diffraction and the effect of the monochromatic light on the growth rate was observed. The scanning electron microscopy (SEM) result was demonstrated different morphology of the different films' surfaces, such as granular spherical, cauliflower, fiber, or wire, with a variety of porosity that was achieved by a simpler photochemical route. A change in the optical bandgap between 2.72 eV and 2.82 eV is observed for the red, green, blue, white light, and darkness conditions. And it is further reduced for samples annealed in the air for 2 hours at 100 °C, and 200 °C indicates improved crystallinity. The obtained result suggests that synthesized material can be used for photoelectrochemical solar cells.

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Section: Introductionmentioning

confidence: 99%

Monochromatic Photochemical Deposition and Characterization of ZnSe Thin Films

Pawar¹,

Lokhande²,

Kaur³

et al. 2022

ES Energy Environ.

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“…Large numbers of binary semiconductors compound like CdS [15][16][17], CdSe [18][19][20], PbS [21][22][23], CuS [24][25][26], and ZnS [27][28][29] can be deposited as thin films using CBD method. For the deposition of ZnS thin films via CBD, some factors should be considered and controlled.…”

Section: Introductionmentioning

confidence: 99%

Annealing Effect on the Structure and Optical Properties of CBD-ZnS Thin Films for Windscreen Coating

Mohammed

2021

Materials

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Zinc sulfide (ZnS) thin films were prepared and synthesized by the chemical bath deposition (CBD) technique on microscopic glass substrates using stoichiometric amounts of the precursor materials (ZnSO4·7H2O, NH4OH, and CS(NH2)2). Structural, morphological, compositional, and optical characterization of the films were studied. The obtained thin films were found to exhibit polycrystalline possessions. The effect of annealing temperature on the crystallographic structure and optical bandgap of ZnS thin films were both examined. The grain size and unit cell volume were both found to be increased. In addition, the strain, dislocation density, and the number of crystallites were found to be decreased with annealing temperature at 300 °C. However, the annealed sample was perceived to have more Zn content than S. The optical characterization reveals that the transmittance was around 76% of the as-deposited thin film and had been decreased to ~50% with the increasing of the annealing temperature. At the same time, the bandgap energy of the as-deposited film was 3.98 eV and was found to be decreased to 3.93 eV after annealing.

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“…The performance of the thermoelectric materials is dependent on several factors such as phase purity, stoichiometry, and morphology, etc., and therefore, chemical or physical tailoring of nanomaterials is often required. Various methods are available in literature for the synthesis of binary metal selenide NPs, such as chemical vapor deposition (CVD), chemical bath deposition (CBD), hot injection, sol–gel, solvothermal, and thermal decomposition of single molecular precursors, etc. − Many reports are highlighting these advantages, and some of them are briefly discussed here. Choi et al have reported synthesis of high quality nanodiscs of copper selenide using imidazoline-2-selenone as novel selenium precursor.…”

Section: Introductionmentioning

confidence: 99%

Band Engineered I/III/V–VI Binary Metal Selenide/MWCNT/PANI Nanocomposites for Potential Room Temperature Thermoelectric Applications

Kshirsagar

Hiragond

Dey

et al. 2019

ACS Appl. Energy Mater.

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Room temperature thermoelectric studies are reported herein of ternary hybrids fabricated by ex situ processing involving polyaniline (PANI), multiwalled carbon nanotubes (MWCNTs), and binary metal selenide nanoparticles (MSe NPs) such as CuSe, Ag 2 Se, In 2 Se 3 , and Sb 2 Se 3 synthesized by using cyclohexeno-1,2,3-selenadiazole (SDZ) as selenium precursor. The presence of phase pure MSe NPs in ternary hybrids was confirmed by XRD analysis. FTIR analysis suggested a strong π−π interaction between PANI and MWCNTs. Electrical conductivities, Seebeck coefficients, and power factors of these band engineered ternary nanocomposites were investigated at room temperature. Ag 2 Se NPs/MWCNT/PANI (ASCP) showed p-type behavior with figure of merit (zT) of 0.012 at room temperature, while other hybrids exhibited n-type behavior. All of the ternary hybrids showed high electrical conductivities, and among ntype hybrids, CuSe NPs/MWCNT/PANI showed the best thermoelectric performance. The present work opens up an efficient approach to enhance the utility of metal chalcogenides as sensitizers in thermoelectric applications. The possible mechanism for charge transport is also discussed.

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Room temperature chemical bath deposition of cadmium selenide, cadmium sulfide and cadmium sulfoselenide thin films with novel nanostructures

Cited by 15 publications

References 41 publications

Monochromatic Photochemical Deposition and Characterization of ZnSe Thin Films

Monochromatic Photochemical Deposition and Characterization of ZnSe Thin Films

Annealing Effect on the Structure and Optical Properties of CBD-ZnS Thin Films for Windscreen Coating

Band Engineered I/III/V–VI Binary Metal Selenide/MWCNT/PANI Nanocomposites for Potential Room Temperature Thermoelectric Applications

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