Exfoliation procedure-dependent optical properties of solution deposited MoS2 films
Abstract The development of high-precision large-area optical coatings and devices comprising low-dimensional materials hinges on scalable solution-based manufacturability with control over exfoliation procedure-dependent effects. As such, it is critical to understand the influence of technique-indu...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-02-01
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| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-023-00376-2 |
| _version_ | 1797864564703887360 |
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| author | Robert T. Busch Lirong Sun Drake Austin Jie Jiang Paige Miesle Michael A. Susner Benjamin S. Conner Ali Jawaid Shannon T. Becks Krishnamurthy Mahalingam Michael A. Velez Riccardo Torsi Joshua A. Robinson Rahul Rao Nicholas R. Glavin Richard A. Vaia Ruth Pachter W. Joshua Kennedy Jonathan P. Vernon Peter R. Stevenson |
| author_facet | Robert T. Busch Lirong Sun Drake Austin Jie Jiang Paige Miesle Michael A. Susner Benjamin S. Conner Ali Jawaid Shannon T. Becks Krishnamurthy Mahalingam Michael A. Velez Riccardo Torsi Joshua A. Robinson Rahul Rao Nicholas R. Glavin Richard A. Vaia Ruth Pachter W. Joshua Kennedy Jonathan P. Vernon Peter R. Stevenson |
| author_sort | Robert T. Busch |
| collection | DOAJ |
| description | Abstract The development of high-precision large-area optical coatings and devices comprising low-dimensional materials hinges on scalable solution-based manufacturability with control over exfoliation procedure-dependent effects. As such, it is critical to understand the influence of technique-induced transition metal dichalcogenide (TMDC) optical properties that impact the design, performance, and integration of advanced optical coatings and devices. Here, we examine the optical properties of semiconducting MoS2 films from the exfoliation formulations of four prominent approaches: solvent-mediated exfoliation, chemical exfoliation with phase reconversion, redox exfoliation, and native redox exfoliation. The resulting MoS2 films exhibit distinct refractive indices (n), extinction coefficients (k), dielectric functions (ε1 and ε2), and absorption coefficients (α). For example, a large index contrast of Δn ≈ 2.3 is observed. These exfoliation procedures and related chemistries produce different exfoliated flake dimensions, chemical impurities, carrier doping, and lattice strain that influence the resulting optical properties. First-principles calculations further confirm the impact of lattice defects and doping characteristics on MoS2 optical properties. Overall, incomplete phase reconfiguration (from 1T to mixed crystalline 2H and amorphous phases), lattice vacancies, intraflake strain, and Mo oxidation largely contribute to the observed differences in the reported MoS2 optical properties. These findings highlight the need for controlled technique-induced effects as well as the opportunity for continued development of, and improvement to, liquid phase exfoliation methodologies. Such chemical and processing-induced effects present compelling routes to engineer exfoliated TMDC optical properties toward the development of next-generation high-performance mirrors, narrow bandpass filters, and wavelength-tailored absorbers. |
| first_indexed | 2024-04-09T22:53:55Z |
| format | Article |
| id | doaj.art-76831b777fd44b4c8ffab375e8a70cc4 |
| institution | Directory Open Access Journal |
| issn | 2397-7132 |
| language | English |
| last_indexed | 2024-04-09T22:53:55Z |
| publishDate | 2023-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj 2D Materials and Applications |
| spelling | doaj.art-76831b777fd44b4c8ffab375e8a70cc42023-03-22T11:22:43ZengNature Portfolionpj 2D Materials and Applications2397-71322023-02-017111310.1038/s41699-023-00376-2Exfoliation procedure-dependent optical properties of solution deposited MoS2 filmsRobert T. Busch0Lirong Sun1Drake Austin2Jie Jiang3Paige Miesle4Michael A. Susner5Benjamin S. Conner6Ali Jawaid7Shannon T. Becks8Krishnamurthy Mahalingam9Michael A. Velez10Riccardo Torsi11Joshua A. Robinson12Rahul Rao13Nicholas R. Glavin14Richard A. Vaia15Ruth Pachter16W. Joshua Kennedy17Jonathan P. Vernon18Peter R. Stevenson19Materials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryNational Research CouncilMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryDepartment of Materials Science and Engineering, Materials Research Institute, Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State UniversityDepartment of Materials Science and Engineering, Materials Research Institute, Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State UniversityMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryMaterials and Manufacturing Directorate, Air Force Research LaboratoryAbstract The development of high-precision large-area optical coatings and devices comprising low-dimensional materials hinges on scalable solution-based manufacturability with control over exfoliation procedure-dependent effects. As such, it is critical to understand the influence of technique-induced transition metal dichalcogenide (TMDC) optical properties that impact the design, performance, and integration of advanced optical coatings and devices. Here, we examine the optical properties of semiconducting MoS2 films from the exfoliation formulations of four prominent approaches: solvent-mediated exfoliation, chemical exfoliation with phase reconversion, redox exfoliation, and native redox exfoliation. The resulting MoS2 films exhibit distinct refractive indices (n), extinction coefficients (k), dielectric functions (ε1 and ε2), and absorption coefficients (α). For example, a large index contrast of Δn ≈ 2.3 is observed. These exfoliation procedures and related chemistries produce different exfoliated flake dimensions, chemical impurities, carrier doping, and lattice strain that influence the resulting optical properties. First-principles calculations further confirm the impact of lattice defects and doping characteristics on MoS2 optical properties. Overall, incomplete phase reconfiguration (from 1T to mixed crystalline 2H and amorphous phases), lattice vacancies, intraflake strain, and Mo oxidation largely contribute to the observed differences in the reported MoS2 optical properties. These findings highlight the need for controlled technique-induced effects as well as the opportunity for continued development of, and improvement to, liquid phase exfoliation methodologies. Such chemical and processing-induced effects present compelling routes to engineer exfoliated TMDC optical properties toward the development of next-generation high-performance mirrors, narrow bandpass filters, and wavelength-tailored absorbers.https://doi.org/10.1038/s41699-023-00376-2 |
| spellingShingle | Robert T. Busch Lirong Sun Drake Austin Jie Jiang Paige Miesle Michael A. Susner Benjamin S. Conner Ali Jawaid Shannon T. Becks Krishnamurthy Mahalingam Michael A. Velez Riccardo Torsi Joshua A. Robinson Rahul Rao Nicholas R. Glavin Richard A. Vaia Ruth Pachter W. Joshua Kennedy Jonathan P. Vernon Peter R. Stevenson Exfoliation procedure-dependent optical properties of solution deposited MoS2 films npj 2D Materials and Applications |
| title | Exfoliation procedure-dependent optical properties of solution deposited MoS2 films |
| title_full | Exfoliation procedure-dependent optical properties of solution deposited MoS2 films |
| title_fullStr | Exfoliation procedure-dependent optical properties of solution deposited MoS2 films |
| title_full_unstemmed | Exfoliation procedure-dependent optical properties of solution deposited MoS2 films |
| title_short | Exfoliation procedure-dependent optical properties of solution deposited MoS2 films |
| title_sort | exfoliation procedure dependent optical properties of solution deposited mos2 films |
| url | https://doi.org/10.1038/s41699-023-00376-2 |
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