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From CuFeS2 to Ba6Cu2FeGe4S16: rational band gap engineering achieves large second-harmonic-generation together with high laser damage threshold

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Abstract

A new germanium-based sulfide, Ba6Cu2FeGe4S16, achieves a band-gap broadening of more than 1 eV relative to CuFeS2. Remarkably, Ba6Cu2FeGe4S16 exhibits excellent comprehensive NLO performance (SHG, 1.5 × AgGaSe2; LDT, 2 × AgGaSe2), satisfying the essential requirements of mid-IR NLO candidates.

Graphical abstract: From CuFeS2 to Ba6Cu2FeGe4S16: rational band gap engineering achieves large second-harmonic-generation together with high laser damage threshold

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Publication details

The article was received on 17 Sep 2019, accepted on 05 Nov 2019 and first published on 05 Nov 2019


Article type: Communication
DOI: 10.1039/C9CC07288H
Chem. Commun., 2019, Advance Article

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    From CuFeS2 to Ba6Cu2FeGe4S16: rational band gap engineering achieves large second-harmonic-generation together with high laser damage threshold

    W. Cao, D. Mei, Y. Yang, Y. Wu, L. Zhang, Y. Wu, X. He, Z. Lin and F. Huang, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC07288H

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