التفاصيل البيبلوغرافية
| العنوان: |
Van Hove Singularities and Trap States in Two-Dimensional CdSe Nanoplatelets |
| المؤلفون: |
Nemanja Peric (10187442), Yannick Lambert (6320705), Shalini Singh (62344), Ali Hossain Khan (1751983), Nathali Alexandra Franchina Vergel (10187445), Dominique Deresmes (2303449), Maxime Berthe (1511056), Zeger Hens (1272621), Iwan Moreels (1263681), Christophe Delerue (1683451), Bruno Grandidier (1511065), Louis Biadala (1835626) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Medicine, Molecular Biology, Physiology, Sociology, Mathematical Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, Trap States, CdSe nanoplatelets, temperature scanning tunnelling spe., edge facets, electron motion, conduction band density, nanostructure synthesis, semiconductor, steplike function, in-plane electron motion, Van Hove Singularities, Two-Dimensional CdSe Nanoplatelets ., quantum wells, binding calculations |
| الوصف: |
Semiconductor nanoplatelets, which offer a compelling combination of the flatness of two-dimensional semiconductors and the inherent richness brought about by colloidal nanostructure synthesis, form an ideal and general testbed to investigate fundamental physical effects related to the dimensionality of semiconductors. With low temperature scanning tunnelling spectroscopy and tight binding calculations, we investigate the conduction band density of states of individual CdSe nanoplatelets. We find an occurrence of peaks instead of the typical steplike function associated with a quantum well, that rule out a free in-plane electron motion, in agreement with the theoretical density of states. This finding, along with the detection of deep trap states located on the edge facets, which also restrict the electron motion, provides a detailed picture of the actual lateral confinement in quantum wells with finite length and width. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Van_Hove_Singularities_and_Trap_States_in_Two-Dimensional_CdSe_Nanoplatelets/14101653 |
| DOI: |
10.1021/acs.nanolett.0c04509.s001 |
| الاتاحة: |
https://doi.org/10.1021/acs.nanolett.0c04509.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.CB4CCBD8 |
| قاعدة البيانات: |
BASE |