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Lead-free halide perovskite solar cells with high photocurrents realized through vacancy modulation.

Lead-free halide perovskite solar cells with high photocurrents realized through vacancy modulation.

Advanced materials (Deerfield Beach, Fla.) (2014-09-13)

Mulmudi Hemant Kumar, Sabba Dharani, Wei Lin Leong, Pablo P Boix, Rajiv Ramanujam Prabhakar, Tom Baikie, Chen Shi, Hong Ding, Ramamoorthy Ramesh, Mark Asta, Michael Graetzel, Subodh G Mhaisalkar, Nripan Mathews

ABSTRACT

Lead free perovskite solar cells based on a CsSnI3 light absorber with a spectral response from 950 nm is demonstrated. The high photocurrents noted in the system are a consequence of SnF2 addition which reduces defect concentrations and hence the background charge carrier density.

MATERIALS

Product Number

Brand

Product Description

USP

Dimethyl sulfoxide, United States Pharmacopeia (USP) Reference Standard

Dimethyl sulfoxide, European Pharmacopoeia (EP) Reference Standard

Sigma-Aldrich

Dimethyl sulfoxide, Vetec^™, reagent grade, 99%

Supelco

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Dimethyl sulfoxide, meets EP testing specifications, meets USP testing specifications

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Dimethyl sulfoxide solution, 50 wt. % in H₂O

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8-Octanoyloxypyrene-1,3,6-trisulfonic acid trisodium salt, suitable for fluorescence, ≥90% (HPCE)

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Dimethyl sulfoxide, for inorganic trace analysis, ≥99.99995% (metals basis)

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