HTL Doping Density Optimization for Photovoltaic Assessment of Pb-Free Cs2NaGaBr6 n-i-p Solar Cell

Ajay Kumar, Melvin Saji Thomas, Neha Gupta, Amit Kumar Goyal, Yehia Massoud*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this study, HTL optimisation techniques have been used to analyse a double halide perovskite (which is lead-free) Cs2NaGaBr6 n-i-p solar cell in order to improve photovoltaic performance. A robust solar cell modeling tool called SCAPS-1D was used for all of the simulations. The suggested photovoltaic design uses a double perovskite material. With a bandgap of 1.762 eV, Cs2NaGaBr6 is a direct band gap halide double perovskite material that is extremely close to organic-inorganic perovskite material. With an improved hole transport layer (HTL) doping (1×1018 cm-3–1×1022 cm-3), the proposed solar cell had a better efficiency of 26.19%. Additionally, Jsc, Voc, FF, and PCE (η) have all been examined as photovoltaic performance parameters. In order to create effective Pb-free perovskite for solar applications, the proposed device may be used.

Original languageEnglish (US)
Title of host publicationPhotonics for Energy III
EditorsHaizheng Zhong, Rui Zhu, Samuel D. Stranks, Jianpu Wang
ISBN (Electronic)9781510667754
StatePublished - 2023
EventPhotonics for Energy III 2023 - Beijing, China
Duration: Oct 15 2023Oct 16 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePhotonics for Energy III 2023

Bibliographical note

Publisher Copyright:
© 2023 SPIE. All rights reserved.


  • Doping
  • Efficiency
  • HTL
  • Lead-free
  • Perovskite
  • Thickness

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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