Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots
Copper indium sulfide (CIS) colloidal quantum dots (QDs) are a promising candidate for commercially viable QD-based optical applications, for example as colloidal photocatalysts or in luminescent solar concentrators (LSCs). CIS QDs with good photoluminescence quantum yields (PLQYs) and tunable emiss...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Wiley
2022
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| Online Access: | https://hdl.handle.net/1721.1/140442 |
| _version_ | 1811096973610057728 |
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| author | Hansen, Eric C. Bertram, Sophie N. Yoo, Jason J. Bawendi, Moungi G. |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Hansen, Eric C. Bertram, Sophie N. Yoo, Jason J. Bawendi, Moungi G. |
| author_sort | Hansen, Eric C. |
| collection | MIT |
| description | Copper indium sulfide (CIS) colloidal quantum dots (QDs) are a promising candidate for commercially viable QD-based optical applications, for example as colloidal photocatalysts or in luminescent solar concentrators (LSCs). CIS QDs with good photoluminescence quantum yields (PLQYs) and tunable emission wavelength via size and composition control are previously reported. However, developing an understanding and control over the growth of electronically passivating inorganic shells would enable further improvements of the photophysical properties of CIS QDs. To improve the optical properties of CIS QDs, the focus is on the growth of inorganic shells via the popular metal-carboxylate/alkane thiol decomposition reaction. 1) The role of Zn-carboxylate and Zn-thiolate on the formation of ZnS shells on Cu-deficient CIS (CDCIS) QDs is studied, 2) this knowledge is leveraged to yield >90% PLQY CDCIS/ZnS core/shell QDs, and 3) a mechanism for ZnS shells grown from zinc-carboxylate/alkane thiol decomposition is proposed. |
| first_indexed | 2024-09-23T16:52:19Z |
| format | Article |
| id | mit-1721.1/140442 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:52:19Z |
| publishDate | 2022 |
| publisher | Wiley |
| record_format | dspace |
| spelling | mit-1721.1/1404422024-06-07T17:25:19Z Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots Hansen, Eric C. Bertram, Sophie N. Yoo, Jason J. Bawendi, Moungi G. Massachusetts Institute of Technology. Department of Chemistry Copper indium sulfide (CIS) colloidal quantum dots (QDs) are a promising candidate for commercially viable QD-based optical applications, for example as colloidal photocatalysts or in luminescent solar concentrators (LSCs). CIS QDs with good photoluminescence quantum yields (PLQYs) and tunable emission wavelength via size and composition control are previously reported. However, developing an understanding and control over the growth of electronically passivating inorganic shells would enable further improvements of the photophysical properties of CIS QDs. To improve the optical properties of CIS QDs, the focus is on the growth of inorganic shells via the popular metal-carboxylate/alkane thiol decomposition reaction. 1) The role of Zn-carboxylate and Zn-thiolate on the formation of ZnS shells on Cu-deficient CIS (CDCIS) QDs is studied, 2) this knowledge is leveraged to yield >90% PLQY CDCIS/ZnS core/shell QDs, and 3) a mechanism for ZnS shells grown from zinc-carboxylate/alkane thiol decomposition is proposed. 2022-02-16T19:18:29Z 2022-02-16T19:18:29Z 2019-05-22 Article http://purl.org/eprint/type/JournalArticle 1613-6810 1613-6829 https://hdl.handle.net/1721.1/140442 Hansen, E. C., Bertram, S. N., Yoo, J. J., Bawendi, M. G., Zinc Thiolate Enables Bright Cu-Deficient Cu-In-S/ZnS Quantum Dots. Small 2019, 15, 1901462. en http://dx.doi.org/10.1002/smll.201901462 Small Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Wiley Wiley |
| spellingShingle | Hansen, Eric C. Bertram, Sophie N. Yoo, Jason J. Bawendi, Moungi G. Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title | Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title_full | Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title_fullStr | Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title_full_unstemmed | Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title_short | Zinc Thiolate Enables Bright Cu‐Deficient Cu‐In‐S/ZnS Quantum Dots |
| title_sort | zinc thiolate enables bright cu deficient cu in s zns quantum dots |
| url | https://hdl.handle.net/1721.1/140442 |
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