Jakub Iwański, Krzysztof P. Korona, Mateusz Tokarczyk, Grzegorz Kowalski, Aleksandra K. Dąbrowska, Piotr Tatarczak, Izabela Rogala, Marta Bilska, Maciej Wójcik, Sławomir Kret, Anna Reszka, Bogdan J. Kowalski, Song Li, Anton Pershin, Adam Gali, Johannes Binder, Andrzej Wysmołek
{"title":"用紫外光发光揭示二维氮化硼的多型性","authors":"Jakub Iwański, Krzysztof P. Korona, Mateusz Tokarczyk, Grzegorz Kowalski, Aleksandra K. Dąbrowska, Piotr Tatarczak, Izabela Rogala, Marta Bilska, Maciej Wójcik, Sławomir Kret, Anna Reszka, Bogdan J. Kowalski, Song Li, Anton Pershin, Adam Gali, Johannes Binder, Andrzej Wysmołek","doi":"10.1038/s41699-024-00511-7","DOIUrl":null,"url":null,"abstract":"Boron nitride exhibits various crystal structures. The subgroup of layered boron nitrides includes several polytypes such as hexagonal (hBN), Bernal (bBN), and rhombohedral (rBN) BN. The latter two are non-centrosymmetric, potentially leading to piezoelectric or ferroelectric properties. A key challenge related to the polytypism of sp2-bonded BN is distinguishing between these polytypes. We demonstrate that the optical response of the 4.1-eV defect can be used to differentiate hBN from rBN. Photoluminescence and cathodoluminescence measurements on samples grown by metalorganic vapor phase epitaxy (MOVPE) show a zero-phonon line at 4.096 eV for hBN and 4.143 eV for rBN. Our calculations confirm that the photoluminescence originates from a carbon dimer, CBCN (C2), which is sensitive to the local environments of different polytypes. We demonstrate that different polytypic compositions of hBN and rBN can be achieved by MOVPE, which could pave the way for future applications in large-area van der Waals heterostructures.","PeriodicalId":19227,"journal":{"name":"npj 2D Materials and Applications","volume":null,"pages":null},"PeriodicalIF":9.1000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41699-024-00511-7.pdf","citationCount":"0","resultStr":"{\"title\":\"Revealing polytypism in 2D boron nitride with UV photoluminescence\",\"authors\":\"Jakub Iwański, Krzysztof P. Korona, Mateusz Tokarczyk, Grzegorz Kowalski, Aleksandra K. Dąbrowska, Piotr Tatarczak, Izabela Rogala, Marta Bilska, Maciej Wójcik, Sławomir Kret, Anna Reszka, Bogdan J. Kowalski, Song Li, Anton Pershin, Adam Gali, Johannes Binder, Andrzej Wysmołek\",\"doi\":\"10.1038/s41699-024-00511-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Boron nitride exhibits various crystal structures. The subgroup of layered boron nitrides includes several polytypes such as hexagonal (hBN), Bernal (bBN), and rhombohedral (rBN) BN. The latter two are non-centrosymmetric, potentially leading to piezoelectric or ferroelectric properties. A key challenge related to the polytypism of sp2-bonded BN is distinguishing between these polytypes. We demonstrate that the optical response of the 4.1-eV defect can be used to differentiate hBN from rBN. Photoluminescence and cathodoluminescence measurements on samples grown by metalorganic vapor phase epitaxy (MOVPE) show a zero-phonon line at 4.096 eV for hBN and 4.143 eV for rBN. Our calculations confirm that the photoluminescence originates from a carbon dimer, CBCN (C2), which is sensitive to the local environments of different polytypes. We demonstrate that different polytypic compositions of hBN and rBN can be achieved by MOVPE, which could pave the way for future applications in large-area van der Waals heterostructures.\",\"PeriodicalId\":19227,\"journal\":{\"name\":\"npj 2D Materials and Applications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.1000,\"publicationDate\":\"2024-11-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.nature.com/articles/s41699-024-00511-7.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"npj 2D Materials and Applications\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.nature.com/articles/s41699-024-00511-7\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"npj 2D Materials and Applications","FirstCategoryId":"88","ListUrlMain":"https://www.nature.com/articles/s41699-024-00511-7","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Revealing polytypism in 2D boron nitride with UV photoluminescence
Boron nitride exhibits various crystal structures. The subgroup of layered boron nitrides includes several polytypes such as hexagonal (hBN), Bernal (bBN), and rhombohedral (rBN) BN. The latter two are non-centrosymmetric, potentially leading to piezoelectric or ferroelectric properties. A key challenge related to the polytypism of sp2-bonded BN is distinguishing between these polytypes. We demonstrate that the optical response of the 4.1-eV defect can be used to differentiate hBN from rBN. Photoluminescence and cathodoluminescence measurements on samples grown by metalorganic vapor phase epitaxy (MOVPE) show a zero-phonon line at 4.096 eV for hBN and 4.143 eV for rBN. Our calculations confirm that the photoluminescence originates from a carbon dimer, CBCN (C2), which is sensitive to the local environments of different polytypes. We demonstrate that different polytypic compositions of hBN and rBN can be achieved by MOVPE, which could pave the way for future applications in large-area van der Waals heterostructures.
期刊介绍:
npj 2D Materials and Applications publishes papers on the fundamental behavior, synthesis, properties and applications of existing and emerging 2D materials. By selecting papers with the potential for impact, the journal aims to facilitate the transfer of the research of 2D materials into wide-ranging applications.