A time-domain view of charge carriers in semiconductor nanocrystal solids
© The Royal Society of Chemistry 2020. The movement of charge carriers within semiconductor nanocrystal solids is fundamental to the operation of nanocrystal devices, including solar cells, LEDs, lasers, photodetectors, and thermoelectric modules. In this perspective, we explain how recent advances...
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry (RSC)
2021
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| Online Access: | https://hdl.handle.net/1721.1/135966 |
| _version_ | 1826202334494982144 |
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| author | Shcherbakov-Wu, Wenbi Tisdale, William A |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Shcherbakov-Wu, Wenbi Tisdale, William A |
| author_sort | Shcherbakov-Wu, Wenbi |
| collection | MIT |
| description | © The Royal Society of Chemistry 2020. The movement of charge carriers within semiconductor nanocrystal solids is fundamental to the operation of nanocrystal devices, including solar cells, LEDs, lasers, photodetectors, and thermoelectric modules. In this perspective, we explain how recent advances in the measurement and simulation of charge carrier dynamics in nanocrystal solids have led to a more complete picture of mesoscale interactions. Specifically, we show how time-resolved optical spectroscopy and transient photocurrent techniques can be used to track both equilibrium and non-equilibrium dynamics in nanocrystal solids. We discuss the central role of energetic disorder, the impact of trap states, and how these critical parameters are influenced by chemical modification of the nanocrystal surface. Finally, we close with a forward-looking assessment of emerging nanocrystal systems, including anisotropic nanocrystals, such as nanoplatelets, and colloidal lead halide perovskites. |
| first_indexed | 2024-09-23T12:05:49Z |
| format | Article |
| id | mit-1721.1/135966 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:05:49Z |
| publishDate | 2021 |
| publisher | Royal Society of Chemistry (RSC) |
| record_format | dspace |
| spelling | mit-1721.1/1359662023-02-24T17:31:29Z A time-domain view of charge carriers in semiconductor nanocrystal solids Shcherbakov-Wu, Wenbi Tisdale, William A Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Chemical Engineering © The Royal Society of Chemistry 2020. The movement of charge carriers within semiconductor nanocrystal solids is fundamental to the operation of nanocrystal devices, including solar cells, LEDs, lasers, photodetectors, and thermoelectric modules. In this perspective, we explain how recent advances in the measurement and simulation of charge carrier dynamics in nanocrystal solids have led to a more complete picture of mesoscale interactions. Specifically, we show how time-resolved optical spectroscopy and transient photocurrent techniques can be used to track both equilibrium and non-equilibrium dynamics in nanocrystal solids. We discuss the central role of energetic disorder, the impact of trap states, and how these critical parameters are influenced by chemical modification of the nanocrystal surface. Finally, we close with a forward-looking assessment of emerging nanocrystal systems, including anisotropic nanocrystals, such as nanoplatelets, and colloidal lead halide perovskites. 2021-10-27T20:30:09Z 2021-10-27T20:30:09Z 2020 2021-06-15T14:52:07Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135966 en 10.1039/C9SC05925C Chemical Science Creative Commons Attribution 3.0 unported license https://creativecommons.org/licenses/by/3.0/ application/pdf Royal Society of Chemistry (RSC) Royal Society of Chemistry (RSC) |
| spellingShingle | Shcherbakov-Wu, Wenbi Tisdale, William A A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title | A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title_full | A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title_fullStr | A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title_full_unstemmed | A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title_short | A time-domain view of charge carriers in semiconductor nanocrystal solids |
| title_sort | time domain view of charge carriers in semiconductor nanocrystal solids |
| url | https://hdl.handle.net/1721.1/135966 |
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