Choose Your Own Adventure: Fabrication of Monolithic All-Perovskite Tandem Photovoltaics: Article No. 2003312

Taylor Moot, Jeremie Werner, Giles Eperon, Kai Zhu, Joseph Berry, Michael McGehee, Joseph Luther

Research output: Contribution to journalArticlepeer-review

40 Scopus Citations

Abstract

Metal halide perovskites (MHPs) have transfixed the photovoltaic (PV) community due to their outstanding and tunable optoelectronic properties coupled to demonstrations of high-power conversion efficiencies (PCE) at a range of bandgaps. This has motivated the field to push perovskites to reach the highest possible performance. One way to increase the efficiency is by fabricating multijunction solar cells, which can split the solar spectrum, reducing thermalization loss. Low-cost all-perovskite tandems have a real chance to soon exceed 30% PCE, which could transform the PV industry. Achieving this goal requires the identification of perovskite sub-cells that are both highly efficient and can be effectively integrated. Herein, it is discussed how to navigate the multiple-choice adventure in choosing between the myriad of options and considerations present when deciding what perovskite materials, contact layers, and processing tools to use. Some of the potential fabrication pitfalls often encountered in MHP based tandem PVs are highlighted, so that they can hopefully be avoided in the future.
Original languageAmerican English
Number of pages22
JournalAdvanced Materials
Volume32
Issue number50
DOIs
StatePublished - 2020

NREL Publication Number

  • NREL/JA-5900-76801

Keywords

  • all-perovskite
  • fabrication
  • monolithic tandem
  • perovskite tandem solar cells

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