X-Ray Line Profile Analysis of Chemically Deposited Nanostructured PBS Films

Baruah, Bhaskarjyoti

doi:10.9790/4861-0520713

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Incorporation of Mn to PbS creates some structural changes and the optical band gap is strongly dependent on fractional concentration of Mn atoms. This may be due to the tendency of Mn atoms to introduce high degree of disorder and hence higher densities of localized states in the forbidden gap [20][21][22][23]. 8, it is observed that for all the Mn doped PbS films at three different concentrations the photocurrent rises very quickly on switching on the light source and then reaches a steady state.…”

Section: Optical Properties Of Mn Doped Nanocrystalline Pbs Thin Filmsmentioning

confidence: 99%

Optical and photoconductivity properties of Mn doped nanocrystalline PbS thin films deposited by chemical bath deposition method

Singh,

Hussain

2023

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Mn doped nanocrystalline PbS thin films were deposited onto glass substrates by chemical bath deposition (CBD) method. All the deposited thin films were found to be crystalline having cubic phase structure. The optical properties of the Mn doped nanocrystalline PbS thin films have been studied. They have high absorbance in the UV-visible region. The linear nature of (αhν)2 vs (hν) plots of PbS thin films confirmed that the transition is direct and the optical band gap energy of PbS films is found to increase from 1.90 eV to 2.28 eV with decreasing crystallite size from 21 nm to 11 nm and the optical band gap values are higher than the bulk value (0.40 eV). The optical band gap of Mn doped PbS films are found to increase with increase in dopant concentrations. The Photoconductive rise time and decay time determined from the prepared films are found to decrease with increase in doping concentrations.

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Section: Optical Properties Of Mn Doped Nanocrystalline Pbs Thin Filmsmentioning

confidence: 99%

Optical and photoconductivity properties of Mn doped nanocrystalline PbS thin films deposited by chemical bath deposition method

Singh,

Hussain

2023

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“…% Zn doped PbS, the calculated average grain sizes are found to be in the ranges 32-46 nm, 12-15 nm and 8-10 nm respectively which are different from the X-ray diffraction results (15-29 nm). The discrepancy between the grain size obtained from the TEM and XRD measurements may be due to the difference in the thickness of these samples, since the TEM grid requires very thin layer deposition on the carbon coated grid, but for XRD characterization thicker film is deposited on the glass substrate [18]. HRTEM is used to study the structure as well as to observed lattice images showing different orientations of the nanocrystals of Zn doped PbS.…”

Section: Sem and Tem Studiesmentioning

confidence: 99%

EFFECT OF DOPING CONCENTRATION ON THE OPTICAL PROPERTIES OF NANOCRYSTALLINE Zn DOPED PbS THIN FILMS DEPOSITED BY CBD METHOD

SINGH¹,

HUSSAIN²

2020

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Nanocrystalline PbS and Zn doped PbS thin films have been deposited on glass substrates by chemical bath deposition (CBD) method. The as deposited thin films were found to be crystalline having cubic phase structure. The optical properties of the undoped and Zn doped PbS thin film have been studied. The chemically prepared Zn doped and undoped nanocrystalline PbS films have high absorbance in the UV-visible region. The linear nature of (αhν)2 vs (hν) plots of PbS thin films confirmed that the transition is direct and the optical band gap energy of PbS films is found to increase from 1.90 eV to 2.28 eV with decreasing crystallite size from 29 nm to 15 nm and these obtained band gap values are higher than the bulk value (0.40 eV). The increase in optical band gap supports the quantum confinement effect in the PbS thin films prepared by CBD technique. The optical band gap of Zn doped PbS films are found to increase with increase in dopant concentrations.

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X-Ray Line Profile Analysis of Chemically Deposited Nanostructured PBS Films

Cited by 2 publications

References 8 publications

Optical and photoconductivity properties of Mn doped nanocrystalline PbS thin films deposited by chemical bath deposition method

Optical and photoconductivity properties of Mn doped nanocrystalline PbS thin films deposited by chemical bath deposition method

EFFECT OF DOPING CONCENTRATION ON THE OPTICAL PROPERTIES OF NANOCRYSTALLINE Zn DOPED PbS THIN FILMS DEPOSITED BY CBD METHOD

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