Synthesis, Structure, Band Gap, and Near-Infrared Photosensitivity of a New Chalcogenide Crystal, (NH4)4Ag12Sn7Se22 - Details

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Abstract：

A　new　chalcogenide　crystal,　(NH4)4Ag12Sn7Se22　(FJSM-STS),　has　been　solvothermally　synthesized.　The　crystal　structure,　which　is　composed　of　arrays　of　[Sn3Se9]n6n-　chains　interconnecting　[SnAg6Se10]n10n-　and　[Ag3Se4]n5n-　layers,　is　unprecedented　among　the　reported　A/Ag/Sn/Q　(A　=　cation;　Q　=　S,　Se,　and　Te)　compounds.　Optical　absorption　together　with　theoretical　calculations　of　the　band　structure　indicate　a　direct　band　gap　of　1.21　eV　for　FJSM-STS,　which　is　close　to　the　ideal　band　gap　to　maximize　the　photoconversion　efficiency　proposed　by　Shockley　and　Queisser.　The　toxic-metal-free　crystal　of　FJSM-STS　exhibits　obvious　photosensitivity　in　the　near-infrared　range.　The　variates　of　power　and　temperature　on　the　photosensitivity　have　been　studied.　©　2016　American　Chemical　Society.

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[ 1 ] [Du, K.-Z.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 2 ] [Qi, X.-H.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 3 ] [Qi, X.-H.]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian, 350002, China
[ 4 ] [Feng, M.-L.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 5 ] [Li, J.-R.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 6 ] [Wang, X.-Z.]Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
[ 7 ] [Du, C.-F.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 8 ] [Du, C.-F.]University of Chinese Academy of Sciences, Beijing, 100049, China
[ 9 ] [Zou, G.-D.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 10 ] [Wang, M.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
[ 11 ] [Huang, X.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China

Reprint 's Address：

[Huang, X.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of SciencesChina

Email：

xyhuang@fjirsm.ac.cn

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Inorganic Chemistry

ISSN： 0020-1669

Year： 2016

Issue： 11

Volume： 55

Page： 5110-5112

4 . 8 5 7

JCR@2016

4 . 3 0 0

JCR@2023

ESI HC Threshold：235

JCR Journal Grade：1

CAS Journal Grade：1

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SCOPUS Cited Count： 12

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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