CONSTRUCTION OF SnO2/SiO2/Si HETEROJUNCTION AND ITS LINEUP USING I–V AND C–V MEASUREMENTS

Salem, Evan T.; Agool, Ibrahim R.; Hassan, Marwa Abdul Muhsien

doi:10.1142/s0217979211102022

Cited by 45 publications

(12 citation statements)

References 7 publications

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“…In case of LiNbO3, in the visible region no excitation can accrue, since the electrons are tightly restricted that the energy in the ultraviolet region is required. The obtained results are synchronized with experimental value in other work [24].…”

Section: Optical Propertiessupporting

confidence: 86%

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The structure and optical properties of Lithium Niobate grown on quartz for photonics application

et al. 2017

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Abstract. This paper focuses on the structure and optical properties of Lithium niobate (LN) deposited on quartz substrate by sol-gel method. The solution was prepared at different molarity concentration and annealed at 500 o C. The LNs were analyzed by UV-visible, X-ray diffraction (XRD) and Scanning Electron Microscope (SEM). The results show that as the molar concentration increases, the films crystallization becomes more atomically distributed and the energy band gap approaches 4 eV. Transmission spectra were taken in the wavelength range of 400-1100 nm. Hexagonal structure was observed with good atoms distribution and homogeneous crystallization. There were two phases of LNs recorded in this work.

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Section: Optical Propertiessupporting

confidence: 86%

“…The optical properties were measured via transmittance (T) spectrum in the range of 300-1100 nm double-beam Ultr-Violet (UV-vis) spectrophotometer (Shimadzu UV-Vis 1800, Japan). The incident photon energy was calculated as a function of wavelength (λ) by using [24] …”

Section: Methodsmentioning

confidence: 99%

The structure and optical properties of Lithium Niobate grown on quartz for photonics application

et al. 2017

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“…Few studies have reported on the effect of laser irradiation on the PL and structural properties of PS [22,23]. It was mentioned that PL of PS depends on irradiating laser energy density for using in optical recording and storage information on the surface of Si [24].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of SnO2 nanostructures employing Nd:YAG laser

et al. 2015

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SnO 2 nanostructures have been prepared on quartz and porous silicon (PS) substrates using rapid photothermal oxidation at 600°C and different oxidation times. The analysis and characterizations were researched. The photovoltage properties of Au/n-SnO 2 /p-PSi/c-Si solar cell are investigated under irradiation of Nd:YAG laser pulses. The PS is synthesized on single crystalline p-type Si using electrochemical etching in aqueous hydrofluoric acid at current density 25 mA/cm 2 for 30 min etching time. The photovoltage properties are found to be depended on laser flounces.

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“…Bragg’s formula was used to compute the interplanar distance (d) for the all sets of LN nanophotonics 76 – 79 . where, n is a positive integer number, and d is the value provided in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

Silver decorated lithium niobat nanostructure by UV activation method for silver–lithium niobate/silicon heterojunction device

Salim

Khalef

Fakhri

et al. 2023

Sci Rep

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Lithium niobite (LiNbO3) nanostructure were successfully synthesized by chemical bath deposition method (CBD) and then decorated with silver nitrate (AgNO3) through UV activation method at different immersion durations (5, 15, 25, 35, and 45 s). The silver nanoparticles (AgNPs) effects on the optical and structural properties were studied and analyzed using various scientific devices and technique. X-ray diffraction (XRD) results showed that all the samples have a hexagonal structure with a maximum diffraction peak at the (012), and the existence of silver atoms could be recognized at 2θ = 38.2° which corresponds to the (111) diffraction plane. The optical absorption of nanocomposites depicted the presence of plasma peak related to silver (Ag) at 350 nm. The estimated energy gap from the optical absorption revealed a reduction in the Eg value from (3.97 eV) to (3.59 eV) with the presence of Ag atom. The Photolumincence (PL) peaks were observed at around 355 nm for pure LiNbO3/Si and 358, 360, 363, 371, 476 nm for different immersion durations respectively, in the visible region of the electromagnetic spectrum. The scanning electron microscopy (SEM) study illustrated that with increasing the immersion time, especially at 45 s, a change in the particle morphology was observed (LiNbO3 NRs structure). Atomic force microscopy (AFM) displayed that the surface roughness decreases from 80.71 nm for pure sample to 23.02 nm for the decorated sample as the immersion time is increased. FT-IR manifested a noticeable increase in the intensity of the peaks of samples decorated with AgNPs. Raman spectroscopy elucidated that the peaks shifted to higher intensity due to the plasmonic effect of Ag nanoparticles. Ag–LiNbO3/Si heterojunction nano-devices were fabricated successfully and enhanced the optoelectronic properties in comparison with the pure LiNbO3/Si heterojunction device.

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CONSTRUCTION OF SnO₂/SiO₂/Si HETEROJUNCTION AND ITS LINEUP USING I–V AND C–V MEASUREMENTS

Cited by 45 publications

References 7 publications

The structure and optical properties of Lithium Niobate grown on quartz for photonics application

The structure and optical properties of Lithium Niobate grown on quartz for photonics application

Synthesis of SnO2 nanostructures employing Nd:YAG laser

Silver decorated lithium niobat nanostructure by UV activation method for silver–lithium niobate/silicon heterojunction device

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