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Simulation and optimization studies on CsPbI3 based inorganic perovskite solar cells.

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Title: Simulation and optimization studies on CsPbI3 based inorganic perovskite solar cells.
Authors: Jayan K, Deepthi1,2 (AUTHOR) deepthij@rajagiritech.edu.in, Sebastian, Varkey1 (AUTHOR), Kurian, Joji1 (AUTHOR) jojikuriank@gmail.com
Source: Solar Energy. Jun2021, Vol. 221, p99-108. 10p.
Subjects: Solar cells, Dye-sensitized solar cells, Cesium iodide, Perovskite, Absorption spectra, Density functional theory, Zinc oxide
Abstract: • DFT based absorption spectrum of the absorber layer is used for the modelling of the PSCs. • Inorganic Cs based perovskite absorber layer was used for modelling. • A high theoretical PCE of 15.6% was achieved for the optimized device configuration. • The absorber layer parameters and back metal contacts influenced device performance. Cesium lead iodide (CsPbI 3) based perovskite solar cell (PSC) with inorganic electron and hole transport layers is simulated using SCAPS 1D to find optimum performance conditions for an all-inorganic PSC with maximum stability and efficiency. In this study, the absorption spectrum and bandgap of CsPbI 3 absorber layer are computed with the help of density functional theory and the resulting spectrum is used as an input for device simulation. Further improvement of device performance is done by optimizing the work function of back electrode, absorber thickness, doping density as well as defect density. Under optimized conditions, a conversion efficiency of 11.99% is obtained with gold (Au) as back contact metal. The efficiency is enhanced to 15.6% for the FTO/ZnO/CsPbI 3 /CuSbS 2 /Se configuration, which uses Se instead of Au as back contact metal, indicating the possibility of replacing the expensive Au with Se as back contact metal in PSCs. The photovoltaic performance parameters achieve their maximum value at an absorber thickness of 547 nm and defect and dopant density of 2.07 × 1014 cm−3 and 1 × 1015 cm−3 respectively. The study shows that the PCE of inorganic CsPbI 3 based PSCs can be improved significantly by introducing a low cost back contact metal Se and using inorganic transport materials, ZnO and CuSbS 2. [ABSTRACT FROM AUTHOR]
Copyright of Solar Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 150717279
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  Label: Title
  Group: Ti
  Data: Simulation and optimization studies on CsPbI3 based inorganic perovskite solar cells.
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  Data: <searchLink fieldCode="AR" term="%22Jayan+K%2C+Deepthi%22">Jayan K, Deepthi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> deepthij@rajagiritech.edu.in</i><br /><searchLink fieldCode="AR" term="%22Sebastian%2C+Varkey%22">Sebastian, Varkey</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kurian%2C+Joji%22">Kurian, Joji</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jojikuriank@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Solar+Energy%22">Solar Energy</searchLink>. Jun2021, Vol. 221, p99-108. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Dye-sensitized+solar+cells%22">Dye-sensitized solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Cesium+iodide%22">Cesium iodide</searchLink><br /><searchLink fieldCode="DE" term="%22Perovskite%22">Perovskite</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption+spectra%22">Absorption spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Density+functional+theory%22">Density functional theory</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc+oxide%22">Zinc oxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • DFT based absorption spectrum of the absorber layer is used for the modelling of the PSCs. • Inorganic Cs based perovskite absorber layer was used for modelling. • A high theoretical PCE of 15.6% was achieved for the optimized device configuration. • The absorber layer parameters and back metal contacts influenced device performance. Cesium lead iodide (CsPbI 3) based perovskite solar cell (PSC) with inorganic electron and hole transport layers is simulated using SCAPS 1D to find optimum performance conditions for an all-inorganic PSC with maximum stability and efficiency. In this study, the absorption spectrum and bandgap of CsPbI 3 absorber layer are computed with the help of density functional theory and the resulting spectrum is used as an input for device simulation. Further improvement of device performance is done by optimizing the work function of back electrode, absorber thickness, doping density as well as defect density. Under optimized conditions, a conversion efficiency of 11.99% is obtained with gold (Au) as back contact metal. The efficiency is enhanced to 15.6% for the FTO/ZnO/CsPbI 3 /CuSbS 2 /Se configuration, which uses Se instead of Au as back contact metal, indicating the possibility of replacing the expensive Au with Se as back contact metal in PSCs. The photovoltaic performance parameters achieve their maximum value at an absorber thickness of 547 nm and defect and dopant density of 2.07 × 1014 cm−3 and 1 × 1015 cm−3 respectively. The study shows that the PCE of inorganic CsPbI 3 based PSCs can be improved significantly by introducing a low cost back contact metal Se and using inorganic transport materials, ZnO and CuSbS 2. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Solar Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.solener.2021.04.030
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 99
    Subjects:
      – SubjectFull: Solar cells
        Type: general
      – SubjectFull: Dye-sensitized solar cells
        Type: general
      – SubjectFull: Cesium iodide
        Type: general
      – SubjectFull: Perovskite
        Type: general
      – SubjectFull: Absorption spectra
        Type: general
      – SubjectFull: Density functional theory
        Type: general
      – SubjectFull: Zinc oxide
        Type: general
    Titles:
      – TitleFull: Simulation and optimization studies on CsPbI3 based inorganic perovskite solar cells.
        Type: main
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          Name:
            NameFull: Jayan K, Deepthi
      – PersonEntity:
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            NameFull: Sebastian, Varkey
      – PersonEntity:
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            NameFull: Kurian, Joji
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          Dates:
            – D: 01
              M: 06
              Text: Jun2021
              Type: published
              Y: 2021
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              Value: 0038092X
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              Value: 221
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            – TitleFull: Solar Energy
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