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

Title: Luminescence of defects in the structural transformation of layered tin dichalcogenides

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5007060· OSTI ID:1527164
ORCiD logo [1];  [2];  [3];  [4];  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Aalto Univ., Otaniemi (Finland)
  3. Aalto Univ., Otaniemi (Finland); Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany); National Univ. of Science and Technology MISiS, Moscow (Russia)
  4. Chinese Academy of Sciences (CAS), Beijing (China)

Layered tin sulfide semiconductors are both of fundamental interest and attractive for energy conversion applications. Sn sulfides crystallize in several stable bulk phases with different Sn:S ratios (SnS2, Sn2S3, and SnS), which can transform into phases with a lower sulfur concentration by introduction of sulfur vacancies (VS). How this complex behavior affects the optoelectronic properties remains largely unknown but is of key importance for understanding light-matter interactions in this family of layered materials. In this work, we use the capability to induce VS and drive a transformation between few-layer SnS2 and SnS by electron beam irradiation, combined with in-situ cathodoluminescence spectroscopy and ab-initio calculations to probe the role of defects in the luminescence of these materials. In addition to the characteristic band-edge emission of the endpoint structures, our results show emerging luminescence features accompanying the SnS2 to SnS transformation. Comparison with calculations indicates that the most prominent emission in SnS2 with sulfur vacancies is not due to luminescence from a defect level but involves recombination of excitons bound to neutral VS in SnS2. These results provide insight into the intrinsic and defect-related optoelectronic properties of Sn chalcogenide semiconductors.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0016343
OSTI ID:
1527164
Alternate ID(s):
OSTI ID: 1414972
Journal Information:
Applied Physics Letters, Vol. 111, Issue 26; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (39)

First principles study of point defects in SnS journal January 2014
Electronic and optical properties of single crystal SnS 2 : an earth-abundant disulfide photocatalyst journal January 2016
Generalized Gradient Approximation Made Simple journal October 1996
Electronic Structure and Defect Physics of Tin Sulfides: SnS, Sn 2 S 3 , and Sn S 2 journal July 2016
SnS thin-films by RF sputtering at room temperature journal August 2011
Hybrid functionals based on a screened Coulomb potential journal May 2003
Ultrafast Zero-Bias Photocurrent in GeS Nanosheets: Promise for Photovoltaics journal May 2017
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
High-performance top-gated monolayer SnS2 field-effect transistors and their integrated logic circuits journal January 2013
Intrinsic Ferroelasticity and/or Multiferroicity in Two-Dimensional Phosphorene and Phosphorene Analogues journal April 2016
Design principles for shift current photovoltaics journal January 2017
Layer-dependent properties of SnS 2 and SnSe 2 two-dimensional materials journal September 2016
Synthesis, Characterization, and Electronic Structure of Single-Crystal SnS, Sn 2 S 3 , and SnS 2 journal December 2013
Field effect transistors with layered two-dimensional SnS 2−x Se x conduction channels: Effects of selenium substitution journal August 2013
Giant piezoelectricity of monolayer group IV monochalcogenides: SnSe, SnS, GeSe, and GeS journal October 2015
Optical characterisation of single crystal 2H-SnS 2 synthesised by the chemical vapour transport method at low temperatures journal June 1990
Cathodoluminescence in a Scanning Transmission Electron Microscope: A Nanometer-Scale Counterpart of Photoluminescence for the Study of II–VI Quantum Dots journal November 2013
Vapor transport deposition and epitaxy of orthorhombic SnS on glass and NaCl substrates journal July 2013
Electron-Beam Induced Transformations of Layered Tin Dichalcogenides journal June 2016
Absorption edge measurements in tin disulphide thin films journal June 1982
Annealing of RF-magnetron sputtered SnS2 precursors as a new route for single phase SnS thin films journal April 2014
Overcoming Efficiency Limitations of SnS-Based Solar Cells journal June 2014
Impact of growth temperature on the properties of SnS film prepared by thermal evaporation and its photovoltaic performance journal August 2015
Erratum: “Hybrid functionals based on a screened Coulomb potential” [J. Chem. Phys. 118, 8207 (2003)] journal June 2006
Atomic Layer Deposition of Tin Monosulfide Thin Films journal September 2011
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
Ab initiomolecular dynamics for liquid metals journal January 1993
Synthesis and Crystallographic Analysis of Shape-Controlled SnS Nanocrystal Photocatalysts: Evidence for a Pseudotetragonal Structural Modification journal July 2013
Ultralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals journal April 2014
Struktur und optische Eigenschaften von epitaxialen SnTe-, SnSe- und SnS-Schichten journal January 1968
Growth and Characterization of Tin Disulfide Single Crystals journal June 2006
High on/off ratio field effect transistors based on exfoliated crystalline SnS 2 nano-membranes journal December 2012
3.88% Efficient Tin Sulfide Solar Cells using Congruent Thermal Evaporation journal August 2014
Freestanding Tin Disulfide Single-Layers Realizing Efficient Visible-Light Water Splitting journal July 2012
Reliable Exfoliation of Large-Area High-Quality Flakes of Graphene and Other Two-Dimensional Materials journal September 2015
Temperature-dependent photoreflectance of SnS crystals journal December 2013
Tin Disulfide—An Emerging Layered Metal Dichalcogenide Semiconductor: Materials Properties and Device Characteristics journal September 2014
Freestanding Tin Disulfide Single-Layers Realizing Efficient Visible-Light Water Splitting journal July 2012
High-resolution X-ray luminescence extension imaging journal February 2021

Cited By (4)

Van der Waals SnSe 2(1− x ) S 2 x Alloys: Composition‐Dependent Bowing Coefficient and Electron–Phonon Interaction journal December 2019
Wrap‐Around Core–Shell Heterostructures of Layered Crystals journal May 2019
Direct optical-structure correlation in atomically thin dichalcogenides and heterostructures journal January 2020
Exploring single-layered SnSe honeycomb polymorphs for optoelectronic and photovoltaic applications journal February 2018

Figures / Tables (4)


Related Subjects