skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quaternary Pavonites A1+xS2–xBi5+xS10 (A+ = Li+, Na+): Site Occupancy Disorder Defines Electronic Structure

Journal Article · · Inorganic Chemistry

The field of mineralogy represents an area of untapped potential for the synthetic chemist, as there are numerous structure types that can be utilized to form analogues of mineral structures with useful optoelectronic properties. In this work, we describe the synthesis and characterization of two novel quaternary sulfides A1+xSn2-xBi5+xS10 (A = Li+, Na+). Though not natural minerals themselves, both compounds adopt the pavonite structure, which crystallizes in the C2/m space group and consists of two connected, alternating defect rock-salt slabs of varying thicknesses to create a three-dimensional lattice. Despite their commonalities in structure, their rystallography is noticeably different, as both structures have a heavy degree of site occupancy disorder that affects the actual positions of the atoms. The differences in site occupancy alter their electronic structures, with band gap values of 0.31(2) eV and 0.07(2) eV for the lithium and sodium analogues, respectively. LiSn2Bi5S10 exhibits ultralow thermal conductivity of 0.62 W m-1 K-1 at 723 K, and this result is corroborated by phonon dispersion calculations. This structure type is a promising host candidate for future thermoelectric materials investigation, as these materials have narrow band gaps and intrinsically low thermal conductivities.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
DMR-1708254; SC0014520
OSTI ID:
1436781
Alternate ID(s):
OSTI ID: 1775335
Journal Information:
Inorganic Chemistry, Vol. 57, Issue 4; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (37)

New and Old Concepts in Thermoelectric Materials journal November 2009
Superconductivity in the Narrow Gap Semiconductor RbBi 11/3 Te 6 journal October 2016
First Quaternary A−Pb−Bi−Q (A = K, Rb, Cs; Q = S, Se) Compounds:  Synthesis, Structure, and Properties of α- and β-CsPbBi 3 Se 6 , APbBi 3 Se 6 , (A = K, Rb), and APbBi 3 S 6 (A = Rb, Cs) journal May 1999
“Design” in Solid-State Chemistry Based on Phase Homologies. The Concept of Structural Evolution and the New Megaseries Am[M1+lSe2+l]2m[M2l+nSe2+3l+n] journal January 2003
ALn1±xBi4±xS8(A=K,Rb;Ln=La,Ce,Pr,Nd): New Semiconducting Quaternary Bismuth Sulfides journal March 1999
Discovery-Synthesis, Design, and Prediction of Chalcogenide Phases journal March 2017
Makovickyite and cupromakovickyite from the Obari mine, Yamagata Prefecture, Japan journal January 2013
LiBi3S5—A lithium bismuth sulfide with strong cation disorder journal June 2016
LiPbSb 3 S 6 : A Semiconducting Sulfosalt with Very Low Thermal Conductivity journal December 2013
High Thermopower and Low Thermal Conductivity in Semiconducting Ternary K−Bi−Se Compounds. Synthesis and Properties of β-K 2 Bi 8 Se 13 and K 2.5 Bi 8.5 Se 14 and Their Sb Analogues journal December 1997
Pb 7 Bi 4 Se 13 : A Lillianite Homologue with Promising Thermoelectric Properties journal August 2014
Crystal Structure and Thermoelectric Properties of the 7,7 L Lillianite Homologue Pb 6 Bi 2 Se 9 journal December 2016
Crystal Growth, Thermoelectric Properties, and Electronic Structure of AgBi 3 S 5 and AgSb x Bi 3 - x S 5 ( x = 0.3) journal July 2005
High Thermoelectric Performance in Electron-Doped AgBi 3 S 5 with Ultralow Thermal Conductivity journal May 2017
Concerted Rattling in CsAg 5 Te 3 Leading to Ultralow Thermal Conductivity and High Thermoelectric Performance journal August 2016
A short history of SHELX journal December 2007
The New Semiconductor Cs 4 Cu 3 Bi 9 S 17 journal February 2017
Generalized Gradient Approximation Made Simple journal October 1996
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Intermediate phases in sodium intercalation into MoS2 nanosheets and their implications for sodium-ion batteries journal August 2017
Thermal conductivity of germanium crystals with different isotopic compositions journal October 1997
Estimation of the isotope effect on the lattice thermal conductivity of group IV and group III-V semiconductors journal November 2002
Measuring thermoelectric transport properties of materials journal January 2015
Structural optimization for thermoelectric properties in Cu-Bi-S pavonite compounds journal May 2017
Structural characterization of the high-temperature phase V on the PbS–Bi 2 S 3 join journal December 1974
Synthesis and Thermoelectric Properties of the New Ternary Bismuth Sulfides KBi 6.33 S 10 and K 2 Bi 8 S 13 journal January 1996
Complex thermoelectric materials journal February 2008
Thinking Like a Chemist: Intuition in Thermoelectric Materials journal April 2016
High-performance bulk thermoelectrics with all-scale hierarchical architectures journal September 2012
High-Thermoelectric Performance of Nanostructured Bismuth Antimony Telluride Bulk Alloys journal May 2008
Convergence of electronic bands for high performance bulk thermoelectrics journal May 2011
Multiple Converged Conduction Bands in K 2 Bi 8 Se 13 : A Promising Thermoelectric Material with Extremely Low Thermal Conductivity journal December 2016
CsBi4Te6: A High-Performance Thermoelectric Material for Low-Temperature Applications journal February 2000
A New Thermoelectric Material: CsBi 4 Te 6 journal May 2004
Rationally Designing High-Performance Bulk Thermoelectric Materials journal August 2016
Tellurium-Free Thermoelectric: The Anisotropic n-Type Semiconductor Bi2S3 journal March 2012
Bournonite PbCuSbS 3 : Stereochemically Active Lone-Pair Electrons that Induce Low Thermal Conductivity journal August 2015