Cette revue est dédiée aux progrès récents dans la compréhension des propriétés optoélectroniques du nitrure de bore hexagonal (hBN) dans l’ultraviolet profond. La comparaison entre un cristal massif de hBN et une monocouche de hBN montre quelques unes de leurs différences majeures telles que la nature de la bande interdite, l’énergie de liaison excitonique ainsi que l’élargissement des raies excitoniques assisté par phonons. Les perspectives mettent en avant la nécessité d’étudier le régime d’échantillons composés de quelques monocouches de hBN, y compris des monocouches tournées dans le contexte actuel de la twistronique.
We review the recent advance in the understanding of the optoelectronic properties of hexagonal boron nitride (hBN) in the deep ultraviolet. The comparison between bulk hBN and monolayer hBN highlights some of their major differences such the bandgap nature, the excitonic binding energy and the phonon-assisted broadening of the excitonic lines. Perspectives point out the relevance of addressing the regime of hBN samples made of a very few number of monolayers, including twisted hBN monolayers in the context of twistronics.
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Mot clés : hBN, Ultraviolet, Spectroscopie, Cristaux 2D, Monocouche
Guillaume Cassabois 1 ; Adrien Rousseau 1 ; Christine Elias 1 ; Thomas Pelini 1 ; Phuong Vuong 1 ; Pierre Valvin 1 ; Bernard Gil 1
@article{CRPHYS_2021__22_S4_69_0, author = {Guillaume Cassabois and Adrien Rousseau and Christine Elias and Thomas Pelini and Phuong Vuong and Pierre Valvin and Bernard Gil}, title = {Hexagonal boron nitride: optical properties in the deep ultraviolet}, journal = {Comptes Rendus. Physique}, pages = {69--76}, publisher = {Acad\'emie des sciences, Paris}, volume = {22}, number = {S4}, year = {2021}, doi = {10.5802/crphys.78}, language = {en}, }
TY - JOUR AU - Guillaume Cassabois AU - Adrien Rousseau AU - Christine Elias AU - Thomas Pelini AU - Phuong Vuong AU - Pierre Valvin AU - Bernard Gil TI - Hexagonal boron nitride: optical properties in the deep ultraviolet JO - Comptes Rendus. Physique PY - 2021 SP - 69 EP - 76 VL - 22 IS - S4 PB - Académie des sciences, Paris DO - 10.5802/crphys.78 LA - en ID - CRPHYS_2021__22_S4_69_0 ER -
%0 Journal Article %A Guillaume Cassabois %A Adrien Rousseau %A Christine Elias %A Thomas Pelini %A Phuong Vuong %A Pierre Valvin %A Bernard Gil %T Hexagonal boron nitride: optical properties in the deep ultraviolet %J Comptes Rendus. Physique %D 2021 %P 69-76 %V 22 %N S4 %I Académie des sciences, Paris %R 10.5802/crphys.78 %G en %F CRPHYS_2021__22_S4_69_0
Guillaume Cassabois; Adrien Rousseau; Christine Elias; Thomas Pelini; Phuong Vuong; Pierre Valvin; Bernard Gil. Hexagonal boron nitride: optical properties in the deep ultraviolet. Comptes Rendus. Physique, Volume 22 (2021) no. S4, pp. 69-76. doi : 10.5802/crphys.78. https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.78/
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