DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yeo, Hwan-Seop | ko |
dc.contributor.author | Lee, Kwanjae | ko |
dc.contributor.author | Cho, Jong-Hoi | ko |
dc.contributor.author | Park, Seoung-Hwan | ko |
dc.contributor.author | Cho, Yong-Hoon | ko |
dc.date.accessioned | 2021-01-28T05:54:18Z | - |
dc.date.available | 2021-01-28T05:54:18Z | - |
dc.date.created | 2021-01-12 | - |
dc.date.created | 2021-01-12 | - |
dc.date.created | 2021-01-12 | - |
dc.date.created | 2021-01-12 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.citation | NANO LETTERS, v.20, no.12, pp.8461 - 8468 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/280052 | - |
dc.description.abstract | Controlling the in-plane symmetry of wide-bandgap semiconductor quantum dots (QDs) is essential for room temperature quantum photonic applications using polarization entangled photon pairs. Herein, we report the formation of 3-fold symmetric group III-nitride QDs at the apex of a triangular pyramid via a self-limited growth mechanism. We employed the in-plane rotational symmetry of the c-plane of a Wurtzite crystal and the large built-in piezoelectric field to reduce fine-structure splitting. The QDs exhibit emission that is distinguishable from that of sidewall quantum wells, and the biexciton-exciton cascade possesses a single-photon nature. We observed the relatively low optical polarization anisotropy and small fine structure splitting under the measurement limit (270 mu eV) with the 3-fold symmetric QD. In contrast with current strategies that consider group III-nitride QDs as strongly polarized single-photon emitters, Our approach for controlling the QD symmetry provides a new perspective on such QDs, as polarization-entangled photon pairs. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Control of the 3-Fold Symmetric Shape of Group III-Nitride Quantum Dots: Suppression of Fine-Structure Splitting | - |
dc.type | Article | - |
dc.identifier.wosid | 000599507100008 | - |
dc.identifier.scopusid | 2-s2.0-85097582073 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 8461 | - |
dc.citation.endingpage | 8468 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c02236 | - |
dc.contributor.localauthor | Cho, Yong-Hoon | - |
dc.contributor.nonIdAuthor | Lee, Kwanjae | - |
dc.contributor.nonIdAuthor | Park, Seoung-Hwan | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Site-controlled group III-nitride quantum dot | - |
dc.subject.keywordAuthor | Self-limited growth | - |
dc.subject.keywordAuthor | 3-Fold symmetry | - |
dc.subject.keywordAuthor | Biexciton-exciton cascade | - |
dc.subject.keywordAuthor | Fine-structure splitting | - |
dc.subject.keywordPlus | SINGLE-PHOTON EMISSION | - |
dc.subject.keywordPlus | OPTICAL-TRANSITIONS | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | EXCITONS | - |
dc.subject.keywordPlus | STATES | - |
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