Heliyon (Dec 2022)

The current state of the art in internal additive materials and quantum dots for improving efficiency and stability against humidity in perovskite solar cells

  • Kanyanee Sanglee,
  • Methawee Nukunudompanich,
  • Florian Part,
  • Christian Zafiu,
  • Gianluca Bello,
  • Eva-Kathrin Ehmoser,
  • Surawut Chuangchote

Journal volume & issue
Vol. 8, no. 12
p. e11878

Abstract

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The remarkable optoelectronic capabilities of perovskite structures enable the achievement of astonishingly high-power conversion efficiencies on the laboratory scale. However, a critical bottleneck of perovskite solar cells is their sensitivity to the surrounding humid environment affecting drastically their long-term stability. Internal additive materials together with surface passivation, polymer-mixed perovskite, and quantum dots, have been investigated as possible strategies to enhance device stability even in unfavorable conditions. Quantum dots (QDs) in perovskite solar cells enable power conversion efficiencies to approach 20%, making such solar cells competitive to silicon-based ones. This mini-review summarized the role of such QDs in the perovskite layer, hole-transporting layer (HTL), and electron-transporting layer (ETL), demonstrating the continuous improvement of device efficiencies.

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