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Quaternary Sulfide Ba6Zn6ZrS14: Synthesis, Crystal Structure, Band Structure, and Multiband Physical Properties

Xian Zhang

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Jianqiao He

Department CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (P.R. China)

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Wei Chen

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Ketian Zhang

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Prof. Chong Zheng

Corresponding Author

E-mail address: czheng@niu.edu

Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115 (USA), Fax: 001‐815‐753‐4802

Chong Zheng, Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115 (USA), Fax: 001‐815‐753‐4802

Jianhua Lin, Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

Fuqiang Huang , Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Prof. Dr. Junliang Sun

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Fuhui Liao

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Prof. Dr. Jianhua Lin

Corresponding Author

E-mail address: huangfq@pku.edu.cn

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

Chong Zheng, Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115 (USA), Fax: 001‐815‐753‐4802

Jianhua Lin, Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

Fuqiang Huang , Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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Prof. Dr. Fuqiang Huang 

Corresponding Author

E-mail address: jhlin@pku.edu.cn

Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

Department CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (P.R. China)

Chong Zheng, Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115 (USA), Fax: 001‐815‐753‐4802

Jianhua Lin, Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

Fuqiang Huang , Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P.R. China), Fax: (+86) 10‐62758225

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First published: 03 April 2014
Citations: 18
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Abstract

Ba6Zn6ZrS14 was synthesized by a traditional salt‐melt method with KI as flux. The pale yellow crystals of Ba6Zn6ZrS14 crystallize in the tetragonal space group I 4/mcm with a =16.3481 (4) Å and c =9.7221(6) Å. The structure features unique one‐dimensional parallel [Zn6S9]6− and [ZrS5]6− straight chains. The D 2h ‐symmetric [Zn6S9]6− cluster serves as the building block of the [Zn6S9]6− chains. A powder sample was investigated by X‐ray diffraction, optical absorption, and photoluminescence measurements. The compound shows multiple‐absorption character with three optical absorption edges around 1.78, 2.50, and 2.65 eV, respectively, which are perfectly consistent with the results of first‐principles calculations. Analysis of the density of states further revealed that the three optical absorption bands are attributable to the three S(3p6)→Zr(4d0) transitions due to the splitting of the Zr 4d orbitals in the D 4h crystal field. The multiband nature of Ba6Zn6ZrS14 also results in photocatalytic activity under visible‐light irradiation and three band‐edge emissions.