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Science· 2014Q1

Interface engineering of highly efficient perovskite solar cells

Huanping Zhou, Qi Chen, Gang Li, Song Luo et al.

Short summary

Researchers engineered interfaces in perovskite solar cells to suppress carrier recombination and enhance efficiency, achieving an average power conversion efficiency (PCE) of 16.6% and a highest efficiency of 19.3%.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Interface engineering suppressed carrier recombination and facilitated carrier dynamics.
  • Average power conversion efficiency (PCE) reached 16.6%, with a maximum of 19.3%.
  • Cells were fabricated in air from solution at low temperatures.
  • The approach simplifies manufacturing for large-area perovskite devices.

AI-generated from the title and abstract; the full text is not read.

Abstract

Advancing perovskite solar cell technologies toward their theoretical power conversion efficiency (PCE) requires delicate control over the carrier dynamics throughout the entire device. By controlling the formation of the perovskite layer and careful choices of other materials, we suppressed carrier recombination in the absorber, facilitated carrier injection into the carrier transport layers, and maintained good carrier extraction at the electrodes. When measured via reverse bias scan, cell PCE is typically boosted to 16.6% on average, with the highest efficiency of ~19.3% in a planar geometry without antireflective coating. The fabrication of our perovskite solar cells was conducted in air and from solution at low temperatures, which should simplify manufacturing of large-area perovskite devices that are inexpensive and perform at high levels.

The authors' abstract, as published at the source. Science, 2014 · DOI ↗

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Field: Electrical and Electronic Engineering

Electrical and Electronic EngineeringEngineering