Optical, water splitting and wettability of titanium nitride/titanium oxynitride bilayer films for hydrogen generation and solar cells applications

Mohamed, S. H.; Zhao, Huihui; Romanus, H.; El-Hossary, F.M.; El-Kassem, M. Abo; Awad, M. A.; Rabia, Mohamed; Lei, Yong

doi:10.1016/j.mssp.2019.104704

Cited by 43 publications

(26 citation statements)

References 44 publications

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“…The deconvolution of the broadband peak in the XRD pattern of TiN/TiO 2 exhibits the overlapping of two diffraction peaks: (101) peak of anatase-TiO 2 (JCPDS 21-1272) and the adjacent (111) peak of TiN (JCPDS 38-1420). Otherwise, the deposition of ultra-thin TiN film using DC sputtering on TiO 2 does not create any phase change in the XRD pattern [ 33 ]. From the XRD of TiN/TiO 2 and the observed peaks for the anatase TIO 2 , it can be concluded that the TiO 2 layer was crystalline with preferred growth orientation alongside the (101) direction.…”

Section: Resultsmentioning

confidence: 99%

Nanoporous TiN/TiO2/Alumina Membrane for Photoelectrochemical Hydrogen Production from Sewage Water

et al. 2021

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An aluminum oxide, Al2O3, template is prepared using a novel Ni imprinting method with high hexagonal pore accuracy and order. The pore diameter after the widening process is about 320 nm. TiO2 layer is deposited inside the template using atomic layer deposition (ALD) followed by the deposition of 6 nm TiN thin film over the TiO2 using a direct current (DC) sputtering unit. The prepared nanotubular TiN/TiO2/Al2O3 was fully characterized using different analytical tools such as X-ray diffraction (XRD), Energy-dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM), and optical UV-Vis spectroscopy. Exploring the current-voltage relationships under different light intensities, wavelengths, and temperatures was used to investigate the electrode’s application before and after Au coating for H2 production from sewage water splitting without the use of any sacrificing agents. All thermodynamic parameters were determined, as well as quantum efficiency (QE) and incident photon to current conversion efficiency (IPCE). The QE was 0.25% and 0.34% at 400 mW·cm−2 for the photoelectrode before and after Au coating, respectively. Also, the activation energy was 27.22 and 18.84 kJ·mol−1, the enthalpy was 24.26 and 15.77 J·mol−1, and the entropy was 238.1 and 211.5 kJ−1·mol−1 before and after Au coating, respectively. Because of its high stability and low cost, the prepared photoelectrode may be suitable for industrial applications.

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Section: Resultsmentioning

confidence: 99%

Nanoporous TiN/TiO2/Alumina Membrane for Photoelectrochemical Hydrogen Production from Sewage Water

et al. 2021

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“…After theoretical analysis, it was confirmed that enhanced HER activity of FeOOH@Co 4 N occurred because of greater electronic interaction between Co 4 N and FeOOH, and hence led to increased HER kinetics. The following Figure 9 shows the polarization curve of HER FeOOH@Co 4 N. Mohamed et al (2020) synthesized TiN/TiO x N y bilayer films using D.C reactive magnetron sputtering. Li et al (2015) reported that in a bilayer film a higher TiN layer causes a more negative flat -band value.…”

Section: Water Splittingmentioning

confidence: 99%

A Comprehensive Review on the Synthesis and Energy Applications of Nano-structured Metal Nitrides

2020

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Nanosized metal nitrides, due to their chemical characteristics which make them sustainable alternatives to noble metals in catalysis, have drawn the attention of researchers worldwide. Transition metal nitrides are very similar in their method of synthesis, properties, and applications. Their synthetic parameters are considered to be the main factor for determining the effectiveness of metal nitrides in photocatalysis, energy storage devices, remediation of environmental pollutants, gas sensors, and biomedical applications. This review focuses on very recent advances made in synthetic approaches and electrocatalytic applications of metal nitrides. The synthetic approaches will provide an overview of cost of production and consumption of energy and time required for synthesis. Furthermore, some recent techniques that offer new paths for researchers, such as electrochemical, sol-gel, solvothermal, sonochemical, solid-state reaction, chemical synthesis, and many more, are also discussed. Various applications in electrocatalysis, water splitting, lithium ion batteries, and super-capacitors, etc. are summarized. We are confident that this review will provide very useful information for the upcoming community of researchers interested in synthesizing nitrides for various applications.

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“…6,7 The preparations of the high-quality materials occurred using many different techniques such as magnetron sputtering, chemical bath deposition, spray pyrolysis, sol-gel, chemical vapor deposition, laser pulsed, and atomic layer deposition. [8][9][10][11][12][13][14][15][16][17] From the preparation methods, the prepared nanomaterials accepted different chemical or physical properties that qualify their applications in optoelectronic devices. 18 From the high technology field, most electronic devices have optoelectronic applications such as aircrafts, smart windows, cameras, light controller, and spectrophotometers.…”

Section: Introductionmentioning

confidence: 99%

The efficiency of M (M = Li, Na, or Cs) doped CdS nanomaterials in optoelectronic applications

Awad

Shaban

Rabia

2022

Intl J of Energy Research

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Summary A novel Cu/Na‐CdS optoelectronic photodetector is prepared and applied for detecting the light in the UV and Vis regions with high efficiency. First, CdS and M‐CdS nanomaterials (M = Li, Na, or Cs) are prepared using the hydrothermal method at 180°C for 24 hours. The prepared nanomaterials have crystalline structures that are confirmed through X‐ray diffraction analyses. Na‐CdS has the optimum structure with a crystalline size of 17.5 nm and porous structure looks small grass. Moreover, Na‐CdS has the optimum optical absorbance and bandgap of 1.78 eV. Na‐CdS nanomaterial is applied as optoelectronic material for light detection under different intensities and wavelengths. The device detected the light in the UV and Vis regions with high efficiency. The current density (Jph) values increased highly in light in compared with dark conditions, in which Jph changed from 20 μA cm−2 to 2.88 mA cm−2 in dark and light, respectively. The detectivity (D) and photoresponsivity (R) were 1.5 × 1010 Jones and 38 mA W−1, respectively. Also, the external quantum efficiency (EQE) was 12% at 390 nm and 100 mW cm−2. The high properties of Na‐CdS optoelectronic qualify it to be applicable in the industrial field incorporated with high technology devices such as cameras and spacecraft.

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Optical, water splitting and wettability of titanium nitride/titanium oxynitride bilayer films for hydrogen generation and solar cells applications

Cited by 43 publications

References 44 publications

Nanoporous TiN/TiO2/Alumina Membrane for Photoelectrochemical Hydrogen Production from Sewage Water

Nanoporous TiN/TiO2/Alumina Membrane for Photoelectrochemical Hydrogen Production from Sewage Water

A Comprehensive Review on the Synthesis and Energy Applications of Nano-structured Metal Nitrides

The efficiency of M (M = Li, Na, or Cs) doped CdS nanomaterials in optoelectronic applications

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