Perovskite and copper indium gallium selenide: A wonderful marriage for tandem photovoltaics with efficiency approaching 30%

Lulu Wang, Jiahong Tang, Fengtao Pei, Teng Cheng, Boyan Li*, Weimin Li, Siqi Li, Cuigu Wu, Yan Jiang, Qi Chen

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)

Abstract

Tandem solar cells (TSCs) represent an attractive technology that can overcome the single-junction Shockley-Queisser limit. Recently, a tandem structure combining wide-bandgap metal halide perovskite with complementary bandgap copper indium gallium selenide (CIGS) photovoltaic technology has demonstrated a realistic pathway to achieve the industrialization goal of pushing power conversion efficiency (PCE) approaching 30% at low-cost. In this review, we first pinpoint the unique advantage of perovskite/CIGS tandems with respect to the other mainstream photovoltaic technologies and retrospect the research progress of perovskite/CIGS TSCs from both PCE and stability perspective in the last years. Next, we comprehensively discuss the major advancements in absorbers, functional layers of the individual sub-cell, and the interconnection layer between them in the recent decade. Finally, we outline several essential scientific and engineering challenges that are to be solved toward the development of efficient, long-term stable, and large-area perovskite/CIGS TSCs in the future.

Original languageEnglish
Pages (from-to)742-763
Number of pages22
JournalJournal of Energy Chemistry
Volume105
DOIs
Publication statusPublished - Jun 2025

Keywords

  • Copper indium gallium selenide
  • Perovskite
  • Solar cell
  • Stability
  • Tandem

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