Science· 2016Q1
Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance
- 3,662citations
- Q1SCImago
- 2016year
Short summary
Incorporating rubidium (Rb+) cations into perovskite solar cells, alongside cesium and organic cations, enables efficiencies over 20% that are maintained for over 500 hours when protected by a polymer coating.
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Key points
- Rubidium cations can form stable perovskite lattices when combined with cesium and organic cations.
- Perovskite solar cells incorporating rubidium achieve photovoltaic efficiencies greater than 20%.
- These cells maintain performance for over 500 hours when protected by a polymer coating.
- The study addresses cation size limitations in perovskite solar cell development.
AI-generated from the title and abstract; the full text is not read.
Abstract
Improving the stability of perovskite solar cells Inorganic-organic perovskite solar cells have poor long-term stability because ultraviolet light and humidity degrade these materials. Bella et al. show that coating the cells with a water-proof fluorinated polymer that contains pigments to absorb ultraviolet light and re-emit it in the visible range can boost cell efficiency and limit photodegradation. The performance and stability of inorganic-organic perovskite solar cells are also limited by the size of the cations required for forming a correct lattice. Saliba et al. show that the rubidium cation, which is too small to form a perovskite by itself, can form a lattice with cesium and organic cations. Solar cells based on these materials have efficiencies exceeding 20% for over 500 hours if given environmental protection by a polymer coating. Science , this issue pp. 203 and 206
The authors' abstract, as published at the source. Science, 2016 · DOI ↗
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Field: Electrical and Electronic Engineering
Electrical and Electronic EngineeringEngineering