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Cited by 305

The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.

Fundamental Efficiency Limit of Lead Iodide Perovskite Solar Cells

Open access
Pazos-Outón, Luis M., Xiao, T. Patrick, Yablonovitch, Eli·2018·The Journal of Physical Chemistry Letters

Abstract

Abstract Lead halide materials have seen a recent surge of interest from the photovoltaics community following the observation of surprisingly high photovoltaic performance, with optoelectronic properties similar to GaAs. This begs the question: What is the limit for the efficiency of these materials? It has been known that under 1-sun illumination the efficiency limit of crystalline silicon is ∼29%, despite the Shockley–Queisser (SQ) limit for its bandgap being ∼33%: the discrepancy is due to strong Auger recombination. In this article, we show that methyl ammonium lead iodide (MAPbI3) likewise has a larger than expected Auger coefficient. Auger nonradiative recombination decreases the theoretical external luminescence efficiency to ∼95% at open-circuit conditions. The Auger penalty is much reduced at the operating point where the carrier density is less, producing an oddly high fill factor of ∼90.4%. This compensates the Auger penalty and leads to a power conversion efficiency of 30.5%, close to ideal for the MAPbI3 bandgap.

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Metadata

Authors
Pazos-Outón, L. M., Xiao, T. P., & Yablonovitch, E.
Venue
The Journal of Physical Chemistry Letters
Published
2018-03-14
Volume
9
Issue
7
Pages
1703-1711
ISSN
1948-7185 (ISSN-L)
OpenAlex
W2789283143
Cited by
305
References
26
FWCI
12.80
Type
journal article
Language
en
Open access
hybrid

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