Investigation the effect of dopant Te on CdSe thin films deposited by RF magnetron sputtering method

Kumar, Devendra; Lal, Chiranji; Veer, Dharm; Singh, Deshraj; Kumar, Pawan; Katiyar, Ram S.

doi:10.1088/1402-4896/accabc

Cited by 3 publications

(3 citation statements)

References 43 publications

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“…This way was developed by Davis and Mott's and applied on amorphous inorganic semiconductors [58,59]. The optical band gap energy (E g Tauc ) of the SnNC thin films deposited onto different substrates can be obtained using the following equation [59][60][61][62][63].…”

Section: Resultsmentioning

confidence: 99%

“…Energies of electronic levels of organic dyes are significant parameters describing organic materials used in optoelectronic devices. CV has been extensively used in the representation of organic dyes [63]. Figure 12 depicts CV for 0.001 M SnNC dye in CH 3 CN solution with 0.1 M TBAP supporting electrolyte at Pt electrode, with a potential scan between −1.8 V and +2.0 V versus Ag/AgCl with a scan rate of 100 mV s −1 .…”

Section: Resultsmentioning

confidence: 99%

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Morphological, optical and electrochemical properties of tin(II) 2,3-naphthalocyanine for organic electronic applications

Hassanien,

AlHazaa,

Atta

et al. 2023

Phys. Scr.

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Herein, tin(II) 2,3-naphthalocyanine (SnNC) organic dye was successfully thermally deposited onto different optical transparent substrates such as glass, quartz, ITO, and FTO. FE-SEM technique reveals that SnNC film shows a uniform and symmetrical spherical-shaped with an average diameter of ∼50 nm. Annealing up to 473 K for 4 h increases the crystallite size of SnNC thin film. SnNC thin film shows absorption bands centered at 858 nm, 313 nm, and 249 nm with two shoulders at 775 nm and 350 nm. We present the absorbance, specular transmittance, specular reflectance and fluorescence properties of SnNc deposited on the different transparent substrates. The oscillator strengths (f) and the electric dipole strength (q2) of SnNC thin film were estimated from the molar absorptivity ( ε molar ) spectra. According to the Tauc model, two optical gap transitions were estimated as 1.03 eV and 3.48 eV. Annealing up to 473 K for 4 h slightly increases them to 1.15 eV and 3.59 eV, respectively. At excitation wavelength = 360 nm, two emission bands were observed at around 403 nm and 674 nm. Upon annealing at 373 K and 473 K, the real part of the refractive index of SnNC thin film decreases, which is correlated with a decrease in mass density. Electrochemical HOMO—LUMO band gaps of SnNC estimated from the cyclic voltammetry (CV) measurements ( E g C V = 1.12 eV ) agree well with the observed optical energy gap estimated from the optical measurements. The wide range absorption, emission, good thermal stability, suitable optical band gap, and electrochemical properties, prove an effective example of organic dye suitable for organic electronic applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Morphological, optical and electrochemical properties of tin(II) 2,3-naphthalocyanine for organic electronic applications

Hassanien,

AlHazaa,

Atta

et al. 2023

Phys. Scr.

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“…The optical power meter can be used to measure the transmittance to control the polishing depth, in order to fabricate the curling pot shaped optical fiber [28]. Using chemical vapor deposition (CVD) [29] or magnetron sputtering [30], deposit a 50 nm thick gold film on the polished surface. Cure PDMS on the surface of the gold film in the temperature detection channel.…”

Section: Introductionmentioning

confidence: 99%

SPR based dual parameter wide range curling pot shaped photonic crystal fiber sensor

Guo,

Du,

et al. 2024

Phys. Scr.

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This article proposes a curling pot shaped photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR), which utilizes two parallel polished surfaces in the cladding to achieve dual parameter measurements of liquid refractive index (RI) and temperature. The mode characteristics and sensing performance of the designed PCF sensor are studied using the finite element method, and the effects of changes in structural parameters such as pore radius, spacing, and gold film thickness on the resonance spectrum are analyzed. The sensing accuracy of the sensor is insensitive to the change of structural parameters, and it has the characteristics of a wide detection range, high sensitivity, and easy manufacture. When the liquid RI is in a wide range of 1.33-1.42, the RI sensitivity up to 20400 nm/RIU is obtained. When the temperature is within a wide range of -10 °C -100 °C, a temperature sensitivity of up to 15.4 nm/°C is achieved. The tight structure design of the sensor core close to the polishing surface and the anti-spill light design with a uniform arrangement of air holes enhance the SPR effect, which is the essential reason for achieving a wide detection range and high sensitivity.

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CdSe thin films-based photodetector doped with Cu, In and Ga atoms: a comparative work

et al. 2023

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Investigation the effect of dopant Te on CdSe thin films deposited by RF magnetron sputtering method

Cited by 3 publications

References 43 publications

Morphological, optical and electrochemical properties of tin(II) 2,3-naphthalocyanine for organic electronic applications

Morphological, optical and electrochemical properties of tin(II) 2,3-naphthalocyanine for organic electronic applications

SPR based dual parameter wide range curling pot shaped photonic crystal fiber sensor

CdSe thin films-based photodetector doped with Cu, In and Ga atoms: a comparative work

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