Physical properties of photoconductive Ag-Sb-S thin films prepared by thermal evaporation

M. I. Medina-Montes; L.A. Baldenegro Pérez; Michael Morales-Luna; T.G. Sánchez; D. Santos Cruz; S. A. Mayén-Hernández; J. Santos-Cruz

doi:10.1016/j.mssp.2021.106167

Physical properties of photoconductive Ag-Sb-S thin films prepared by thermal evaporation

M. I. Medina-Montes, L.A. Baldenegro Pérez , Michael Morales-Luna, T.G. Sánchez, D. Santos Cruz, S. A. Mayén-Hernández, J. Santos-Cruz

Departamento de Diseño Industrial

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

3 Citations (Scopus)

Abstract

We used thermal evaporation and post-deposition thermal treatment to prepare photoconductive Ag-Sb-S thin films. Firstly, to obtain the Ag ₂S/Sb ₂S ₃/substrate samples, we sequentially evaporated both Sb ₂S ₃ and Ag ₂S precursors. Secondly, we converted the double-layered structure in Ag-Sb-S thin films through a post-annealing treatment. Finally, considering the variation in both temperature of this treatment and amount of evaporated Ag ₂S, we evaluated the formation of AgSbS ₂ and Ag ₃SbS ₃ ternary phases in the films. As a result, we identified the coexistence of cubic and monoclinic AgSbS ₂ and monoclinic and hexagonal Ag ₃SbS ₃ phases. In addition, the evolution from metastable to stable phases of AgSbS ₂ and Ag ₃SbS ₃ is presented. Using Raman vibrational modes at 267 cm ^-1 for the monoclinic and 323 cm ^-1 for the hexagonal phases and X-ray diffraction results, we identified the dominant Ag ₃SbS ₃ crystalline structure. Furthermore, we found that, respectively, the optical band gap, electrical conductivity and photosensitivity are in the range of 1.7–1.85 eV, 1.3 × 10 ^-7 to 7.4 × 10 ^-5 (Ω-cm) ^-1 and 29 to 0.5. Consequently, the Ag-Sb-S thin films are suitable as the absorber layer in photovoltaic solar cells.

Original language	English
Article number	106167
Pages (from-to)	1
Number of pages	14
Journal	Materials Science in Semiconductor Processing
Volume	137
DOIs	https://doi.org/10.1016/j.mssp.2021.106167
Publication status	Published - Jan 2022

Bibliographical note

Funding Information:
The authors acknowledge José Campos Alvarez for SEM images and EDXS measurements, María Luisa Ramón for her advice on XRD analysis (IER-UNAM) and Claudia Tomasini Montenegro for her assistance in writing-review and editing. MIMM thanks the postdoctoral fellowship from CONACYT-SENER Sustentabilidad Energética.

Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.mssp.2021.106167

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@article{e49036d4a53c496682a27b37b0f77445,

title = "Physical properties of photoconductive Ag-Sb-S thin films prepared by thermal evaporation",

abstract = "We used thermal evaporation and post-deposition thermal treatment to prepare photoconductive Ag-Sb-S thin films. Firstly, to obtain the Ag 2S/Sb 2S 3/substrate samples, we sequentially evaporated both Sb 2S 3 and Ag 2S precursors. Secondly, we converted the double-layered structure in Ag-Sb-S thin films through a post-annealing treatment. Finally, considering the variation in both temperature of this treatment and amount of evaporated Ag 2S, we evaluated the formation of AgSbS 2 and Ag 3SbS 3 ternary phases in the films. As a result, we identified the coexistence of cubic and monoclinic AgSbS 2 and monoclinic and hexagonal Ag 3SbS 3 phases. In addition, the evolution from metastable to stable phases of AgSbS 2 and Ag 3SbS 3 is presented. Using Raman vibrational modes at 267 cm -1 for the monoclinic and 323 cm -1 for the hexagonal phases and X-ray diffraction results, we identified the dominant Ag 3SbS 3 crystalline structure. Furthermore, we found that, respectively, the optical band gap, electrical conductivity and photosensitivity are in the range of 1.7–1.85 eV, 1.3 × 10 -7 to 7.4 × 10 -5 (Ω-cm) -1 and 29 to 0.5. Consequently, the Ag-Sb-S thin films are suitable as the absorber layer in photovoltaic solar cells. ",

author = "Medina-Montes, {M. I.} and {Baldenegro P{\'e}rez}, L.A. and Michael Morales-Luna and T.G. S{\'a}nchez and {Santos Cruz}, D. and May{\'e}n-Hern{\'a}ndez, {S. A.} and J. Santos-Cruz",

note = "Funding Information: The authors acknowledge Jos{\'e} Campos Alvarez for SEM images and EDXS measurements, Mar{\'i}a Luisa Ram{\'o}n for her advice on XRD analysis (IER-UNAM) and Claudia Tomasini Montenegro for her assistance in writing-review and editing. MIMM thanks the postdoctoral fellowship from CONACYT-SENER Sustentabilidad Energ{\'e}tica. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2022",

month = jan,

doi = "10.1016/j.mssp.2021.106167",

language = "English",

volume = "137",

pages = "1",

journal = "Materials Science in Semiconductor Processing",

issn = "1369-8001",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Physical properties of photoconductive Ag-Sb-S thin films prepared by thermal evaporation

AU - Medina-Montes, M. I.

AU - Baldenegro Pérez , L.A.

AU - Morales-Luna, Michael

AU - Sánchez, T.G.

AU - Santos Cruz, D.

AU - Mayén-Hernández, S. A.

AU - Santos-Cruz, J.

N1 - Funding Information: The authors acknowledge José Campos Alvarez for SEM images and EDXS measurements, María Luisa Ramón for her advice on XRD analysis (IER-UNAM) and Claudia Tomasini Montenegro for her assistance in writing-review and editing. MIMM thanks the postdoctoral fellowship from CONACYT-SENER Sustentabilidad Energética. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2022/1

Y1 - 2022/1

N2 - We used thermal evaporation and post-deposition thermal treatment to prepare photoconductive Ag-Sb-S thin films. Firstly, to obtain the Ag 2S/Sb 2S 3/substrate samples, we sequentially evaporated both Sb 2S 3 and Ag 2S precursors. Secondly, we converted the double-layered structure in Ag-Sb-S thin films through a post-annealing treatment. Finally, considering the variation in both temperature of this treatment and amount of evaporated Ag 2S, we evaluated the formation of AgSbS 2 and Ag 3SbS 3 ternary phases in the films. As a result, we identified the coexistence of cubic and monoclinic AgSbS 2 and monoclinic and hexagonal Ag 3SbS 3 phases. In addition, the evolution from metastable to stable phases of AgSbS 2 and Ag 3SbS 3 is presented. Using Raman vibrational modes at 267 cm -1 for the monoclinic and 323 cm -1 for the hexagonal phases and X-ray diffraction results, we identified the dominant Ag 3SbS 3 crystalline structure. Furthermore, we found that, respectively, the optical band gap, electrical conductivity and photosensitivity are in the range of 1.7–1.85 eV, 1.3 × 10 -7 to 7.4 × 10 -5 (Ω-cm) -1 and 29 to 0.5. Consequently, the Ag-Sb-S thin films are suitable as the absorber layer in photovoltaic solar cells.

AB - We used thermal evaporation and post-deposition thermal treatment to prepare photoconductive Ag-Sb-S thin films. Firstly, to obtain the Ag 2S/Sb 2S 3/substrate samples, we sequentially evaporated both Sb 2S 3 and Ag 2S precursors. Secondly, we converted the double-layered structure in Ag-Sb-S thin films through a post-annealing treatment. Finally, considering the variation in both temperature of this treatment and amount of evaporated Ag 2S, we evaluated the formation of AgSbS 2 and Ag 3SbS 3 ternary phases in the films. As a result, we identified the coexistence of cubic and monoclinic AgSbS 2 and monoclinic and hexagonal Ag 3SbS 3 phases. In addition, the evolution from metastable to stable phases of AgSbS 2 and Ag 3SbS 3 is presented. Using Raman vibrational modes at 267 cm -1 for the monoclinic and 323 cm -1 for the hexagonal phases and X-ray diffraction results, we identified the dominant Ag 3SbS 3 crystalline structure. Furthermore, we found that, respectively, the optical band gap, electrical conductivity and photosensitivity are in the range of 1.7–1.85 eV, 1.3 × 10 -7 to 7.4 × 10 -5 (Ω-cm) -1 and 29 to 0.5. Consequently, the Ag-Sb-S thin films are suitable as the absorber layer in photovoltaic solar cells.

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U2 - 10.1016/j.mssp.2021.106167

DO - 10.1016/j.mssp.2021.106167

M3 - Article

SN - 1369-8001

VL - 137

SP - 1

JO - Materials Science in Semiconductor Processing

JF - Materials Science in Semiconductor Processing

M1 - 106167

ER -

Physical properties of photoconductive Ag-Sb-S thin films prepared by thermal evaporation

Abstract

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