Highly Responsive and Low-Cost Ultraviolet Sensor Based on ZnS/p-Si heterojunction grown by Chemical Bath Deposition

Following the model of DeVos and Pauwels (1981), we calculated the spectral factor of efficiencies (η1) for n +-p or n +-i-p heterojunctions that can be formed by different thin absorber materials (p-type or intrinsic(i)) with n +-type CdS thin films produced by conversion of chemically deposited CdS thin films by doping with Cl or In as reported before. The materials with η1 comparable to that of CuInSe 2 (Eg, 1.01 eV: 57%) are AgBiS 2 (Eg, 0.9 eV: 56%), Cu 2 SnS 3 (Eg, 0.91 eV: 57%), PbSnS 3 (Eg, 1.05 eV: 57%), PbSbS 4 (Eg, 1.13 eV: 56%).

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Photo-enhanced field-emission behavior of CdSSe microflowers

International Journal of Modern Physics B ◽

10.1142/s0217979221400324 ◽

2021 ◽

pp. 2140032

Author(s):

Amol B. Deore ◽

Mahendra A. More ◽

Bhausaheb B. Musmade ◽

Sachin D. Nerkar ◽

Padmakar G. Chavan ◽

...

Keyword(s):

Field Emission ◽

Chemical Bath Deposition ◽

Silicon Substrate ◽

Low Cost ◽

Emission Current ◽

Deposition Technique ◽

Chemical Bath Deposition Technique ◽

Emission Behavior ◽

Current Value ◽

Cadmium Sulfoselenide

In this work, we synthesized well-grown cadmium sulfoselenide (CdSSe) microflowers on gold-coated silicon substrate using a simple and low-cost chemical bath deposition technique. The deposited CdSSe film was annealed in a furnace for 30 min at [Formula: see text]C. Subsequently, the annealed CdSSe film was further characterized using structural, morphological and field-emission analyses. The CdSSe microflowers show photosensitive field-emission behavior. In the photosensitive field emission, the emission current rises by nearly 2–3 times of its primary preset current value of [Formula: see text]A.

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High intrinsic activity of the oxygen evolution reaction in low-cost NiO nanowall electrocatalysts

Materials Advances ◽

10.1039/d0ma00467g ◽

2020 ◽

Vol 1 (6) ◽

pp. 1971-1979

Author(s):

Salvatore Cosentino ◽

Mario Urso ◽

Giacomo Torrisi ◽

Sergio Battiato ◽

Francesco Priolo ◽

...

Keyword(s):

Oxygen Evolution ◽

Thermal Annealing ◽

Chemical Bath Deposition ◽

Oxygen Evolution Reaction ◽

High Efficiency ◽

Low Cost ◽

Intrinsic Activity

NiO nanowalls grown by low-cost chemical bath deposition and thermal annealing are a high-efficiency and sustainable electrocatalytst for OER.

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Flexible low–cost infrared photodetector based on SnS thin film grown by chemical bath deposition

Materials Research Express ◽

10.1088/2053-1591/aa91e4 ◽

2017 ◽

Vol 4 (10) ◽

pp. 105033 ◽

Cited By ~ 11

Author(s):

Mohamed S Mahdi ◽

K Ibrahim ◽

Naser M Ahmed ◽

A Kadhim ◽

Shrook A Azzez ◽

...

Keyword(s):

Thin Film ◽

Chemical Bath Deposition ◽

Low Cost ◽

Infrared Photodetector

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CdS/PbSe Heterojunction Made via Chemical Bath Deposition and Ionic Exchange Processes to Develop Low-Cost and Scalable Devices

Applied Sciences ◽

10.3390/app112210914 ◽

2021 ◽

Vol 11 (22) ◽

pp. 10914

Author(s):

José Antonio Heredia-Cancino ◽

Oscar Salcido ◽

Ricardo Britto-Hurtado ◽

Sayra Guadalupe Ruvalcaba-Manzo ◽

Ramón Ochoa-Landín ◽

...

Keyword(s):

Chemical Bath Deposition ◽

Low Cost ◽

Forward Bias ◽

Optoelectronic Devices ◽

Chemical Deposition ◽

Precursor Film ◽

Ionic Exchange ◽

Exchange Processes ◽

Current Voltage ◽

Cds Thin Films

Complete optoelectronic devices present major difficulties that are caused by aqueous chemical deposition. In this work, a ITO/CdS/PbSe heterostructure was developed, depositing CdS over an ITO-coated substrate via a chemical bath deposition (CBD) technique. The next step involved the growth of a plumbonacrite film over CdS via CBD, where the film acted as a precursor film to be converted to PbSe via ion exchange. The characterization of each material involved in the heterostructure were as follows: the CdS thin films presented a hexagonal crystalline structure and bandgap of 2.42 eV; PbSe had a cubic structure and a bandgap of 0.34 eV. I vs. V measurements allowed the observation of the electrical behavior, which showed a change from an ohmic to diode response by applying a thermal annealing at 150 °C for 5 min. The forward bias of the diode response was in the order of 0.8 V, and the current-voltage characteristics were analyzed by using the modified Shockley model, obtaining an ideality factor of 2.47, being similar to a Schottky diode. Therefore, the reported process to synthesize an ITO/CdS/PbSe heterostructure by aqueous chemical methods was successful and could be used to develop optoelectronic devices.

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Improved Synthesis of ZnO Nanowalls: Effects of Chemical Bath Deposition Time and Annealing Temperature

Chemosensors ◽

10.3390/chemosensors7020018 ◽

2019 ◽

Vol 7 (2) ◽

pp. 18 ◽

Cited By ~ 4

Author(s):

Domenico Pellegrino ◽

Giorgia Franzò ◽

Vincenzina Strano ◽

Salvo Mirabella ◽

Elena Bruno

Keyword(s):

Chemical Bath Deposition ◽

Room Temperature ◽

Deposition Time ◽

Annealing Temperature ◽

Low Cost ◽

Growth Time ◽

Electric Transport ◽

Photoluminescence Spectra ◽

Electrical And Optical Properties ◽

Temperature Operating

Zinc Oxide (ZnO) nanowalls (NWLs) are interesting nanostructures for sensing application. In order to push towards the realization of room-temperature operating sensors, a detailed investigation of the synthesis effect on the electrical and optical properties is needed. This work focuses on the low-cost synthesis of ZnO NWLs by means of chemical bath deposition (growth time of 5, 60, and 120 minutes) followed by annealing in inert ambient (temperature of 100, 200, and 300 °C). The as-grown NWLs show a typical intertwined network of vertical sheets whose features (thickness and height) stabilize after 60 minutes growth. During thermal annealing, NWLs are converted into ZnO. The electric transport across the ZnO NWL network radically changes after annealing. A higher resistivity was observed for longer deposition times and for higher annealing temperatures, at which the photoluminescence spectra resemble those obtained for ZnO material. A longer deposition time allows for a better transformation to ZnO during the annealing, thanks to the presence of ZnO seeds just after the growth. These findings can have a significant role in promoting the realization of room-temperature operating sensors based on ZnO NWLs.

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BATH PARAMETER DEPENDENCE OF CHEMICALLY-DEPOSITED COPPER SELENIDE THIN FILM

International Journal of Modern Physics B ◽

10.1142/s021797920402638x ◽

2004 ◽

Vol 18 (22) ◽

pp. 3063-3069 ◽

Cited By ~ 1

Author(s):

AL-MAMUN ◽

A. B. M. O. ISLAM

Keyword(s):

Thin Film ◽

Thin Films ◽

Film Thickness ◽

Chemical Bath Deposition ◽

Glass Substrate ◽

Deposition Time ◽

Low Cost ◽

Copper Selenide ◽

Reaction Bath ◽

Selenide Thin Film

In this article, a low cost chemical bath deposition (CBD) technique has been used for the preparation of Cu 2-x Se thin films on to glass substrate. Different thin films (0.2–0.6 μm) were prepared by adjusting the bath parameter like concentration of ammonia, deposition time, temperature of the solution, and the ratios of the mixing composition between copper and selenium in the reaction bath. From these studies, it reveals that at low concentration of ammonia or TEA, the terminal thicknesses of the films are less, which gradually increases with the increase of concentrations and then drop down at still higher concentrations. It has been found that complexing the Cu 2+ ions with TEA first, and then addition of ammonia yields better results than the reverse process. The film thickness increases with the decrease of value x of Cu 2-x Se .

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ZnO Microflowers Grown by Chemical Bath Deposition: A Low-Cost Approach for Massive Production of Functional Nanostructures

Chemosensors ◽

10.3390/chemosensors7040062 ◽

2019 ◽

Vol 7 (4) ◽

pp. 62

Author(s):

Vincenzina Strano ◽

Maria Grazia Greco ◽

Enrico Ciliberto ◽

Salvo Mirabella

Keyword(s):

Chemical Bath Deposition ◽

Low Cost ◽

High Surface ◽

High Surface Area ◽

Zinc Nitrate ◽

Nitrate Hexahydrate ◽

X Ray Diffraction ◽

X Ray ◽

Spheroidal Shape ◽

Xrd Techniques

The massive production of nanostructures with controlled features and high surface area is a challenging and timely task in view of developing effective materials for sensing and catalysis. Herein, functional ZnO nanostructures, named microflowers (MFs) have been prepared by a facile and rapid chemical bath deposition. ZnO MFs show an intriguing sheets-composed spheroidal shape, with diameters in the range 0.2–2.5 µm, whose formation is achieved by a complexing action by F in an aqueous solution of zinc nitrate hexahydrate and hexamethylenetetramine. The evolution of the physical and structural properties of the material, following post-deposition thermal annealing, has been investigated by scanning electron microscopy (SEM), energy dispersive X-ray analyses (EDX), photoluminescence (PL) and X-ray diffraction (XRD) techniques. The effectiveness of ZnO MFs in UV detection has also been tested to account for the potentiality of these nanostructures.

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