Compositional engineering of perovskite materials for high-performance solar cells

Nam Joong Jeon, Jun Hong Noh, Woon Seok Yang, Young Chan Kim, Seungchan Ryu, Jangwon Seo, Sang Il Seok

Research output: Contribution to journalArticle

2972 Citations (Scopus)

Abstract

Of the many materials and methodologies aimed at producing low-cost, efficient photovoltaic cells, inorganic-organic lead halide perovskite materials appear particularly promising for next-generation solar devices owing to their high power conversion efficiency. The highest efficiencies reported for perovskite solar cells so far have been obtained mainly with methylammonium lead halide materials. Here we combine the promising - owing to its comparatively narrow bandgap - but relatively unstable formamidinium lead iodide (FAPbI 3) with methylammonium lead bromide (MAPbBr 3) as the light-harvesting unit in a bilayer solar-cell architecture. We investigated phase stability, morphology of the perovskite layer, hysteresis in current-voltage characteristics, and overall performance as a function of chemical composition. Our results show that incorporation of MAPbBr 3 into FAPbI 3 stabilizes the perovskite phase of FAPbI 3 and improves the power conversion efficiency of the solar cell to more than 18 per cent under a standard illumination of 100 milliwatts per square centimetre. These findings further emphasize the versatility and performance potential of inorganic-organic lead halide perovskite materials for photovoltaic applications.

Original languageEnglish
Pages (from-to)476-480
Number of pages5
JournalNature
Volume517
Issue number7535
DOIs
Publication statusPublished - 2015 Jan 22
Externally publishedYes

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Solar cells
Conversion efficiency
Phase stability
Photovoltaic cells
Iodides
Current voltage characteristics
Hysteresis
Energy gap
Lighting
perovskite
Chemical analysis
Lead
Costs
methylamine

ASJC Scopus subject areas

  • General

Cite this

Jeon, N. J., Noh, J. H., Yang, W. S., Kim, Y. C., Ryu, S., Seo, J., & Seok, S. I. (2015). Compositional engineering of perovskite materials for high-performance solar cells. Nature, 517(7535), 476-480. https://doi.org/10.1038/nature14133

Compositional engineering of perovskite materials for high-performance solar cells. / Jeon, Nam Joong; Noh, Jun Hong; Yang, Woon Seok; Kim, Young Chan; Ryu, Seungchan; Seo, Jangwon; Seok, Sang Il.

In: Nature, Vol. 517, No. 7535, 22.01.2015, p. 476-480.

Research output: Contribution to journalArticle

Jeon, NJ, Noh, JH, Yang, WS, Kim, YC, Ryu, S, Seo, J & Seok, SI 2015, 'Compositional engineering of perovskite materials for high-performance solar cells', Nature, vol. 517, no. 7535, pp. 476-480. https://doi.org/10.1038/nature14133
Jeon, Nam Joong ; Noh, Jun Hong ; Yang, Woon Seok ; Kim, Young Chan ; Ryu, Seungchan ; Seo, Jangwon ; Seok, Sang Il. / Compositional engineering of perovskite materials for high-performance solar cells. In: Nature. 2015 ; Vol. 517, No. 7535. pp. 476-480.
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