All-inorganic perovskite solar cells featuring mixed group IVA cations

Yufeng Li, Changyu Yang, Weisi Guo, Tianwei Duan*, Zhongmin Zhou*, Yuanyuan Zhou*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

4 Citations (Scopus)

Abstract

All-inorganic perovskites are promising for solar cells owing to their potentially superior tolerance to environmental factors, as compared with their hybrid organic–inorganic counterparts. Over the past few years, all-inorganic perovskite solar cells (PSCs) have seen a dramatic improvement in certified power conversion efficiencies (PCEs), demonstrating their great potential for practical applications. Pb, Sn, and Ge are the most studied group IVA elements for perovskites. These group IVA cations share the same number of valence electrons and similarly exhibit the beneficial antibonding properties of lone-pair electrons when incorporated in the perovskite structure. Meanwhile, mixing these cations in all-inorganic perovskites provides opportunities for stabilizing the photoactive phase and tailoring the bandgap structure. In this mini-review, we analyze the structural and bandgap design principles for all-inorganic perovskites featuring mixed group IVA cations, discuss the updated progress in the corresponding PSCs, and finally provide perspectives on future research efforts faciliating the continued development of high-performance Pb-less and Pb-free all-inorganic PSCs.
Original languageEnglish
Pages (from-to)7249-7260
Number of pages12
JournalNanoscale
Volume15
Issue number16
Early online date5 Apr 2023
DOIs
Publication statusPublished - 28 Apr 2023

Scopus Subject Areas

  • Materials Science(all)

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