Investigation and fabrication of Cadmium Telluride (CdTe) single crystal as a photodetector

Valmik, Bharati G.; Deshpande, M. P.; Bhatt, S. J.; Sathe, Vasant; Bhoi, Hiteshkumar R.; Rajput, Piyush; Chaki, Sunil H.

doi:10.1016/j.physb.2021.413027

Cited by 17 publications

(5 citation statements)

References 32 publications

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“…The discrepancy between the currents recorded under illuminated and dark conditions is used to compute the photocurrent ( I ph ). 61 I ph = I illuminated − I dark The time-dependent photoresponse of the CuSbSe 2 single crystal is recorded under polychromatic light by employing a bias voltage of 100 mV for a time period of 20 s at an intensity of 50 mW cm −2 . The illumination is cyclically activated and deactivated at an interval of 10 seconds.…”

Section: Resultsmentioning

confidence: 99%

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Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Parekh,

Deshpande,

Bhatt

et al. 2024

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

“…The discrepancy between the currents recorded under illuminated and dark conditions is used to compute the photocurrent (I ph ). 61 I ph = I illuminated À I dark (11) The time-dependent photoresponse of the CuSbSe…”

Section: Electrical Properties: I-v Characteristics and Pulse Photore...mentioning

confidence: 99%

Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Parekh,

Deshpande,

Bhatt

et al. 2024

Mater. Adv.

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“…Detectivity is used to evaluate the performance of photodetectors, particularly in terms of their ability to detect weak optical signals in the presence of noise. The responsivity ( R ) and detectivity ( D ) of the material have been evaluated by using the following equations and mentioned in Table . R = I normalL P A where I L is the light current, P is the power density, and A is the active area of the photodetector. D = R A 2 e I normalD where “ e ” is the charge of the electron and I D is the dark current. From Table , it is clearly understood that for the samples CT and BCT-3, the responsivity of the material is showing good results.…”

Section: Resultsmentioning

confidence: 99%

Section: Optical Study 371 Uv−vis Analysismentioning

confidence: 99%

Hydrothermally Synthesized Bi-Doped CdTe Nanoparticles with Tunable Optical and Photoresponse Properties for Visible Photodetectors

Supriya,

Kumar,

Pradhan

et al. 2024

ACS Appl. Mater. Interfaces

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The remarkable applicability and unique properties of CdTe nanoparticles make them vital in various applications such as optoelectronics and photovoltaics. It has been demonstrated that adding a metal dopant to a nanomaterial matrix significantly improves its characteristics, increasing its potential for a variety of applications. In this work, a simple hydrothermal synthesis process for bidoped CdTe nanoparticles is reported, wherein four distinct samples are generated by adjusting the concentration of Bi doping. Structural analysis using X-ray diffraction (XRD) confirmed the presence of the CdTe cubic phase in the material with observable phase shifts due to Bi incorporation. Rietveld refinement of the XRD results further enabled a detailed structural analysis. Raman spectroscopy provided insights into the different vibrational modes of CdTe, while transmission electron microscopy analysis further elucidated the CdTe phase and determined interplanar spacing values. Morphological examination via field emission scanning electron microscopy revealed a consistent nanoparticle-like morphology, unaffected even by increased Bi concentration. Elemental analysis conducted through inductively coupled plasma mass spectrometry offered valuable insights into the composition of the material. Furthermore, UV−vis analysis revealed a decrease in the bandgap, indicating potential shifts in the material's optical properties. Notably, the photoresponse study demonstrated an increase in current value, as well as alterations in the rise and decay times of the material. These properties highlight its potential for various optical and electrical applications. Overall, these findings underscore the promising prospects of bidoped CdTe nanoparticles in various advancements.

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“…Cadmium telluride (CdTe) of considerable technological importance for many purposes, such as photovoltaics [6][7][8][9], medical imaging [10], electro-optic modulators, photorefractive systems, photodetector [11], thermoelectric [12]. CdTe can show both n-type and p-type electrical conductivity which can be used in diodes and transistors.…”

Section: Introductionmentioning

confidence: 99%

Electron, phonon, optical and thermodynamic properties of CdTe crystal calculated by DFT

Ільчук

Nykyruy

Kashuba

et al. 2022

Phys. Chem. Solid St.

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Electronic and phonon band structure, thermodynamic and optical properties are studied for the CdTe crystal. We calculated the electron and phonon dispersion at high symmetry directions, density of electron and phonon state, temperature dependence feature of Raman spectra, heat capacity, free energy, entropy, enthalpy and Debay temperature estimated with the generalized gradient approximation (GGA). A Perdew–Burke–Ernzerhof functional (PBE) was utilized. To study the optical properties was use a complex dielectric function ε(ħω). All of the calculated parameters correlate well with the known experimental data.

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Investigation and fabrication of Cadmium Telluride (CdTe) single crystal as a photodetector

Cited by 17 publications

References 32 publications

Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Hydrothermally Synthesized Bi-Doped CdTe Nanoparticles with Tunable Optical and Photoresponse Properties for Visible Photodetectors

Electron, phonon, optical and thermodynamic properties of CdTe crystal calculated by DFT

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Investigation and fabrication of Cadmium Telluride (CdTe) single crystal as a photodetector

Cited by 17 publications

References 32 publications

Growth of a CuSbSe2 single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Growth of a CuSbSe2 single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Hydrothermally Synthesized Bi-Doped CdTe Nanoparticles with Tunable Optical and Photoresponse Properties for Visible Photodetectors

Electron, phonon, optical and thermodynamic properties of CdTe crystal calculated by DFT

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Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material

Growth of a CuSbSe₂ single crystal by the Bridgman technique and its utility as a photodetector and thermoelectric material