Investigation of structural, electrical and photoresponse properties of composite based Al/NiO:CdO/p-Si/Al photodiodes

GÜRGENÇ, Ezgi; Di̇ki̇ci̇, Aydın; Aslan, Fehmi

doi:10.1016/j.physb.2022.413981

Cited by 7 publications

(5 citation statements)

References 55 publications

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“…The capacitance-voltage (C-V) curves of the photodiode obtained at different step frequencies are presented in Figure 8 (due to the opposite probe poles used in the C-V measurement the left voltage side in this figure is actually reverse bias region). According to these C-V curves, the capacitance of the SMA-photodiode changes by change of frequency and applied voltage [28,[33][34][35][36][54][55][56]. The higher frequency, the lower capacitance.…”

Section: Figure 6 the Regions Of Dominant Current Conduction Mechanis...mentioning

confidence: 99%

“…The higher frequency, the lower capacitance. Because the electrons cannot chase the ac current at high frequencies and therefore they don't contribute to the total capacitance at high frequencies [23,[54][55][56]. The capacitance of the photodiode becomes zero in the forward bias region at all frequencies.…”

Section: Figure 6 the Regions Of Dominant Current Conduction Mechanis...mentioning

confidence: 99%

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Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Karaduman¹,

Canbay

2022

Turkish Journal of Science and Technology

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Micro/nano scale thin-film shape memory alloys (SMAs) have been used in many different miniaturized systems. Using them as thin-film metal components in fabrication of Schottky photodiodes has started a few years ago. In this work, a new SMA-photodiode device with CuAlNi/n-Si/Al structure was produced by coating nano-thick CuAlNi SMA film on n-Si wafer by thermal evaporation. The photoelectrical I-V, I-t and C-V photodiode characterization tests were carried out at room temperature under dark and different artifical light power intensities. It was observed that the new device exhibited photoconductive, photovoltaic and capacitive behaviors. By using the obtained data, the ideality factor (n) and barrier height (ϕb) were determined by conventional I-V method. The photodiode performance parameters of responsivity (Rph), photosensivity (%PS) and spesific detectivity (D*) were determined as good figure of merits. The current conduction mechanism analysis revealed that the space charge limited conduction (SCLC) mechanism is the dominant current conduction mechanism. By the drawn reverse squared C-2-V plots, the values of donor concentration (ND), diffusion potential (Vd), Fermi level (EF) and also barrier height (ϕb) were determined for the SMA-photodiode. The results indicated that the new SMA-photodiode device can be useful in optoelectronic communication systems and photosensing applications.

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Section: Figure 6 the Regions Of Dominant Current Conduction Mechanis...mentioning

confidence: 99%

Section: Figure 6 the Regions Of Dominant Current Conduction Mechanis...mentioning

confidence: 99%

Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Karaduman¹,

Canbay

2022

Turkish Journal of Science and Technology

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“…This deviation is because Nord functions are suitable for the ideal diode, which could not be achieved in the current study. Also, this may be owing to the impact of the series resistance at higher voltages in the case of Nord model, while the TE and Cheung models are applied at low voltages, 0 > V > 0.3. , The obtained results revealed the significant impact of the nanosheets on improvement of the surface area of the nanocomposite Alq 3 /Y 2 O 3 , leading to create more excitons, which separated into free charge carriers (holes and electrons) at the interfacial layers. − …”

Section: Resultsmentioning

confidence: 94%

“… 25 , 26 The obtained results revealed the significant impact of the nanosheets on improvement of the surface area of the nanocomposite Alq 3 /Y 2 O 3 , leading to create more excitons, which separated into free charge carriers (holes and electrons) at the interfacial layers. 25 − 27 …”

Section: Resultsmentioning

confidence: 99%

Impact of Y₂O₃ Nanosheets on the Microstructural Characteristics of Alq₃ Prepared via the Co-precipitation Route for Enhancement of Photodiode Performance

Siddiq,

Sopaih,

Elgazzar

2023

ACS Omega

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In the present study, tris-(8-hydroxyquinoline) aluminum (Alq 3 ) and tris-(8hydroxyquinoline) aluminum/yttrium oxide Alq 3 /Y 2 O 3 were synthesized by a facile chemical route. The crystal structure, surface morphological nature, and particle size were identified by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) micrographs. Ag/Alq 3 /p-Si/Al and Ag/Alq 3 :Y 2 O 3 /p-Si/Al diodes were fabricated by the thermal evaporation technique and the electrical characteristics were evaluated from the I−V plots in dark and under illumination intensity. Thermionic emission theory, Cheung−Cheung, and Nord model have been applied to define the main electronic parameters like series resistance (R s ), barrier height (ϕ b ), and ideality factor (n). The hybrid Ag/Alq 3 :Y 2 O 3 /p-Si/Al diode revealed a nonideal behavior with high shunt resistance R sh and good photocurrent sensitivity. The C/G−V analysis indicated that both C and G are strongly affected by the presence of trapped charge carriers at the interface states. The obtained results indicated that R s was decreased whereas the carrier concentration (N a ) was increased by loading Y 2 O 3 nanosheets.

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“…Sahu et al [35] investigated metal recovery from Ni-Cd cake waste residue by the hydrometallurgical route and found Zn, Ni, and Cd agglomerated based on an SEM study. Gürgenç et al [36] fabricated thin films using NiO-CdO and found perfect agglomeration between them. Therefore, a mixture of Ni-Cd and Al2O3 could form a fusion between them.…”

Section: Fesem Analysismentioning

confidence: 99%

Preparation, Characterization, and Photocatalytic Activity of Ni-Cd/Al2O3 Composite Catalyst

Yusmaniar,

Premono,

Susetyo

et al. 2023

Bull. Chem. React. Eng. Catal.

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This study was conducted to determine the effect of the radiation source and radiation time on the methylene blue (MB) solution by adding Ni-Cd/Al2O3 to the percent degradation of MB. To investigate similar purposes, the pH of the MB solution varied as well. The preparation, characterization, and photocatalytic activity of Ni-Cd/Al2O3 are three steps in this research. The Ni-Cd was prepared by mixing Ni(NO3)2.6H2O and Cd(NO3)2.4H2O. Various concentrations of Ni-Cd were mixed with Al2O3, then heated, stirred, dried, and calcined to form Ni-Cd/Al2O3 powder. The dried powder catalysts were characterized using Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDS), Brunauer-emmett-teller (BET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Diffused reflectance spectrometer spectra (DR-UV-Vis). Higher degradation was observed at pH 11, when MB was degraded by 68% and 76% using the 5Ni-2Cd/Al2O3 and 6Ni-1Cd/Al2O3 catalysts, respectively. The 6Ni-1Cd/Al2O3 sample has higher absorption, less surface area, and less band gap; therefore, it has higher performance against degraded MB in the solution. In summary, 6Ni-1Cd/Al2O3 is capable of degrading MB and can be utilized in MB dye waste. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Investigation of structural, electrical and photoresponse properties of composite based Al/NiO:CdO/p-Si/Al photodiodes

Cited by 7 publications

References 55 publications

Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Impact of Y₂O₃ Nanosheets on the Microstructural Characteristics of Alq₃ Prepared via the Co-precipitation Route for Enhancement of Photodiode Performance

Preparation, Characterization, and Photocatalytic Activity of Ni-Cd/Al2O3 Composite Catalyst

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Investigation of structural, electrical and photoresponse properties of composite based Al/NiO:CdO/p-Si/Al photodiodes

Cited by 7 publications

References 55 publications

Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Photo-electrical Characterization of New CuAlNi/n-Si/Al Schottky Photodiode Fabricated by Coating Thin-Film Smart Material

Impact of Y2O3 Nanosheets on the Microstructural Characteristics of Alq3 Prepared via the Co-precipitation Route for Enhancement of Photodiode Performance

Preparation, Characterization, and Photocatalytic Activity of Ni-Cd/Al2O3 Composite Catalyst

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Impact of Y₂O₃ Nanosheets on the Microstructural Characteristics of Alq₃ Prepared via the Co-precipitation Route for Enhancement of Photodiode Performance