Stark Tuning of Single-Photon Emitters in Hexagonal Boron Nitride
SCIE
SCOPUS
- Title
- Stark Tuning of Single-Photon Emitters in Hexagonal Boron Nitride
- Authors
- Noh, Gichang; Choi, Daebok; Kim, Jin-Hun; Im, Dong-Gil; Kim, Yoon-Ho; Seo, Hosung; Lee, Jieun
- Date Issued
- 2018-08
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Single-photon emitters play an essential role in quantum technologies, including quantum computing and quantum communications. Atomic defects in hexagonal boron nitride (h-BN) have recently emerged as new room-temperature single-photon emitters in solid-state systems, but the development of scalable and tunable h-BN single-photon emitters requires external methods that can control the emission energy of individual defects. Here, by fabricating van der Waals heterostructures of h-BN and graphene, we demonstrate the electrical control of single-photon emission from atomic defects in h-BN via the Stark effect. By applying an out-of-plane electric field through graphene gates, we observed Stark shifts as large as 5.4 nm per GV/m. The Stark shift generated upon a vertical electric field suggests the existence of out-of-plane dipole moments associated with atomic defect emitters, which is supported by first-principles theoretical calculations. Furthermore, we found field-induced discrete modification and stabilization of emission intensity, which were reversibly controllable with an external electric field.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/95697
- DOI
- 10.1021/acs.nanolett.8b01030
- ISSN
- 1530-6984
- Article Type
- Article
- Citation
- NANO LETTERS, vol. 18, no. 8, page. 4710 - 4715, 2018-08
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