Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films

K. V. Gunavathy; A. M.S. Arulanantham; I. Loyola Poul Raj; S. Vinoth; R. S.Rimal Isaac; B. Prakash; S. Valanarasu; V. Ganesh; H. Algarni; I. S. Yahia

doi:10.1007/s00339-023-06389-4

Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films

K. V. Gunavathy
, A. M.S. Arulanantham
, I. Loyola Poul Raj
, S. Vinoth
, R. S.Rimal Isaac
, B. Prakash
, S. Valanarasu
, V. Ganesh
, H. Algarni
, I. S. Yahia

Anna University
Vaikalipatti
Ananda College
Pondicherry University
Noorul Islam University
Madurai Kamaraj University
King Khalid University
Ain Shams University

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The nebulizer spray pyrolysis (NSP) technique is employed to analyze the effect of samarium doping on the structural, morphological, optical, and electrical conductivity in Bi₂S₃ thin films deposited on bare glass substrates by varying the doping concentration from 0 to 3 wt %. Further, their photosensing properties are also studied to utilize the prepared Bi₂S₃:Sm thin films for photo-detecting applications. The Bi₂S₃:Sm thin films are found to be in an orthorhombic structure. The data from X-ray diffraction are used to calculate the value of crystallite size, microstrain, and lattice parameters, as well as the volume of the unit cell. 2% Sm-doped Bi₂S₃ film exhibited a maximum crystallite size of 38 nm and a lower micro-strain value. FESEM micrographs of 2% Sm-doped film show well-defined larger grains. The optical band gap is found to vary between 2.02 and 2.26 eV when the Sm doping concentration is varied. These thin films' absorption is higher around the ultraviolet region of the electromagnetic spectra. The electrical properties exhibited an increase in photocurrent under illumination. A higher responsivity of 9.57 × 10^–1 AW^–1, detectivity of 1.97 × 10¹¹ Jones, and external quantum efficiency of 309% are recorded for Bi₂S₃:Sm (2%) thin film. The response and recovery time of the Bi₂S₃:Sm (2%)-based photodetector are observed to be 1.6 and 1.8 s, respectively. These favorable characteristics of samarium-doped Bi₂S₃ thin films recommend its potential usage in low-cost, high-performance UV photodetectors.

Original language	English
Article number	141
Journal	Applied Physics A: Materials Science and Processing
Volume	129
Issue number	2
DOIs	https://doi.org/10.1007/s00339-023-06389-4
State	Published - Feb 2023
Externally published	Yes

Keywords

BiS thin films
Nebulizer spray pyrolysis
Photo-response
Samarium doping
Transient characteristics
UV photodetectors

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10.1007/s00339-023-06389-4

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Gunavathy, K. V., Arulanantham, A. M. S., Raj, I. L. P., Vinoth, S., Isaac, R. S. R., Prakash, B., Valanarasu, S., Ganesh, V., Algarni, H., & Yahia, I. S. (2023). Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films. Applied Physics A: Materials Science and Processing, 129(2), Article 141. https://doi.org/10.1007/s00339-023-06389-4

@article{25f768fad8f84f31859219ce374056c8,

title = "Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films",

abstract = "The nebulizer spray pyrolysis (NSP) technique is employed to analyze the effect of samarium doping on the structural, morphological, optical, and electrical conductivity in Bi2S3 thin films deposited on bare glass substrates by varying the doping concentration from 0 to 3 wt \%. Further, their photosensing properties are also studied to utilize the prepared Bi2S3:Sm thin films for photo-detecting applications. The Bi2S3:Sm thin films are found to be in an orthorhombic structure. The data from X-ray diffraction are used to calculate the value of crystallite size, microstrain, and lattice parameters, as well as the volume of the unit cell. 2\% Sm-doped Bi2S3 film exhibited a maximum crystallite size of 38 nm and a lower micro-strain value. FESEM micrographs of 2\% Sm-doped film show well-defined larger grains. The optical band gap is found to vary between 2.02 and 2.26 eV when the Sm doping concentration is varied. These thin films' absorption is higher around the ultraviolet region of the electromagnetic spectra. The electrical properties exhibited an increase in photocurrent under illumination. A higher responsivity of 9.57 × 10–1 AW–1, detectivity of 1.97 × 1011 Jones, and external quantum efficiency of 309\% are recorded for Bi2S3:Sm (2\%) thin film. The response and recovery time of the Bi2S3:Sm (2\%)-based photodetector are observed to be 1.6 and 1.8 s, respectively. These favorable characteristics of samarium-doped Bi2S3 thin films recommend its potential usage in low-cost, high-performance UV photodetectors.",

keywords = "BiS thin films, Nebulizer spray pyrolysis, Photo-response, Samarium doping, Transient characteristics, UV photodetectors",

author = "Gunavathy, \{K. V.\} and Arulanantham, \{A. M.S.\} and Raj, \{I. Loyola Poul\} and S. Vinoth and Isaac, \{R. S.Rimal\} and B. Prakash and S. Valanarasu and V. Ganesh and H. Algarni and Yahia, \{I. S.\}",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.",

year = "2023",

month = feb,

doi = "10.1007/s00339-023-06389-4",

language = "English",

volume = "129",

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Gunavathy, KV, Arulanantham, AMS, Raj, ILP, Vinoth, S, Isaac, RSR, Prakash, B, Valanarasu, S, Ganesh, V, Algarni, H & Yahia, IS 2023, 'Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films', Applied Physics A: Materials Science and Processing, vol. 129, no. 2, 141. https://doi.org/10.1007/s00339-023-06389-4

TY - JOUR

T1 - Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films

AU - Gunavathy, K. V.

AU - Arulanantham, A. M.S.

AU - Raj, I. Loyola Poul

AU - Vinoth, S.

AU - Isaac, R. S.Rimal

AU - Prakash, B.

AU - Valanarasu, S.

AU - Ganesh, V.

AU - Algarni, H.

AU - Yahia, I. S.

PY - 2023/2

Y1 - 2023/2

N2 - The nebulizer spray pyrolysis (NSP) technique is employed to analyze the effect of samarium doping on the structural, morphological, optical, and electrical conductivity in Bi2S3 thin films deposited on bare glass substrates by varying the doping concentration from 0 to 3 wt %. Further, their photosensing properties are also studied to utilize the prepared Bi2S3:Sm thin films for photo-detecting applications. The Bi2S3:Sm thin films are found to be in an orthorhombic structure. The data from X-ray diffraction are used to calculate the value of crystallite size, microstrain, and lattice parameters, as well as the volume of the unit cell. 2% Sm-doped Bi2S3 film exhibited a maximum crystallite size of 38 nm and a lower micro-strain value. FESEM micrographs of 2% Sm-doped film show well-defined larger grains. The optical band gap is found to vary between 2.02 and 2.26 eV when the Sm doping concentration is varied. These thin films' absorption is higher around the ultraviolet region of the electromagnetic spectra. The electrical properties exhibited an increase in photocurrent under illumination. A higher responsivity of 9.57 × 10–1 AW–1, detectivity of 1.97 × 1011 Jones, and external quantum efficiency of 309% are recorded for Bi2S3:Sm (2%) thin film. The response and recovery time of the Bi2S3:Sm (2%)-based photodetector are observed to be 1.6 and 1.8 s, respectively. These favorable characteristics of samarium-doped Bi2S3 thin films recommend its potential usage in low-cost, high-performance UV photodetectors.

AB - The nebulizer spray pyrolysis (NSP) technique is employed to analyze the effect of samarium doping on the structural, morphological, optical, and electrical conductivity in Bi2S3 thin films deposited on bare glass substrates by varying the doping concentration from 0 to 3 wt %. Further, their photosensing properties are also studied to utilize the prepared Bi2S3:Sm thin films for photo-detecting applications. The Bi2S3:Sm thin films are found to be in an orthorhombic structure. The data from X-ray diffraction are used to calculate the value of crystallite size, microstrain, and lattice parameters, as well as the volume of the unit cell. 2% Sm-doped Bi2S3 film exhibited a maximum crystallite size of 38 nm and a lower micro-strain value. FESEM micrographs of 2% Sm-doped film show well-defined larger grains. The optical band gap is found to vary between 2.02 and 2.26 eV when the Sm doping concentration is varied. These thin films' absorption is higher around the ultraviolet region of the electromagnetic spectra. The electrical properties exhibited an increase in photocurrent under illumination. A higher responsivity of 9.57 × 10–1 AW–1, detectivity of 1.97 × 1011 Jones, and external quantum efficiency of 309% are recorded for Bi2S3:Sm (2%) thin film. The response and recovery time of the Bi2S3:Sm (2%)-based photodetector are observed to be 1.6 and 1.8 s, respectively. These favorable characteristics of samarium-doped Bi2S3 thin films recommend its potential usage in low-cost, high-performance UV photodetectors.

KW - BiS thin films

KW - Nebulizer spray pyrolysis

KW - Photo-response

KW - Samarium doping

KW - Transient characteristics

KW - UV photodetectors

UR - https://www.scopus.com/pages/publications/85146807051

U2 - 10.1007/s00339-023-06389-4

DO - 10.1007/s00339-023-06389-4

M3 - Article

AN - SCOPUS:85146807051

SN - 0947-8396

VL - 129

JO - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

IS - 2

M1 - 141

ER -

Influence of samarium doping on enhancing the photosensing capability of nebulizer-sprayed bismuth sulfide thin films

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