Four-Terminal Perovskite–CdSeTe Tandem Solar Cells: From 25% toward 30% Power Conversion Efficiency and Beyond

  • Kshitiz Dolia
  • , Sabin Neupane
  • , Sheng Fu
  • , Yifan Yin
  • , Abasi Abudulimu
  • , Amirhossein Rahimi
  • , Mark Hattarki
  • , Briana Dokken
  • , Tingting Zhu
  • , Alisha Adhikari
  • , Manoj K. Jamarkattel
  • , Richard E. Irving
  • , Adam B. Phillips
  • , Michael J. Heben
  • , Randy J. Ellingson
  • , Yanfa Yan*
  • , Zhaoning Song*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Thin-film tandem photovoltaic (PV) technology has emerged as a promising avenue to enhance power conversion efficiency beyond the radiative efficiency limit of single-junction devices. Combining a tunable wide-bandgap perovskite cell with a commercially established narrow-bandgap cadmium selenium telluride (CdSeTe) cell in a comparatively easy-to-fabricate four-terminal (4-T) arrangement is a great step in that direction. Herein, the impact of the transparent back contact and the perovskite absorber bandgap on the performance of 4-T perovskite–CdSeTe tandem solar cells is investigated. 4-T perovskite–CdSeTe tandem device architecture with ≈25% efficiency is demonstrated and a feasible pathway is shown to improve the tandem efficiency to more than 30%. The results show that the integration of CdSeTe with perovskite in 4-T tandem PV configurations represents a significant advancement toward achieving higher efficiency and low-cost tandem PVs.

Original languageEnglish
Article number2400148
JournalSolar RRL
Volume8
Issue number21
DOIs
StatePublished - Nov 2024
Externally publishedYes

Keywords

  • cadmium telluride
  • indium zinc oxide
  • metal halide perovskites
  • tandem solar cells
  • transparent back contact

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