Graphene-Quantum-Dot-Mediated Semiconductor Bonding: A Route to Optoelectronic Double Heterostructures and Wavelength-Converting Interfaces
| Autor: | Kodai Kishibe, Kosuke Nishigaya, Katsuaki Tanabe |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
wavelength conversion Wafer bonding Physics::Optics wafer bonding 02 engineering and technology Double heterostructure 010402 general chemistry 01 natural sciences law.invention lcsh:QD241-441 lcsh:Organic chemistry law Graphene business.industry double heterostructure Photonic integrated circuit graphene quantum dot Heterojunction General Medicine 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Graphene quantum dot 0104 chemical sciences Semiconductor Quantum dot Optoelectronics interface 0210 nano-technology business |
| Zdroj: | C, Vol 6, Iss 28, p 28 (2020) |
| ISSN: | 2311-5629 |
| Popis: | A semiconductor bonding technique that is mediated by graphene quantum dots is proposed and demonstrated. The mechanical stability, electrical conductivity, and optical activity in the bonded interfaces are experimentally verified. First, the bonding scheme can be used for the formation of double heterostructures with a core material of graphene quantum dots. The Si/graphene quantum dots/Si double heterostructures fabricated in this study can constitute a new basis for next-generation nanophotonic devices with high photon and carrier confinements, earth abundance, environmental friendliness, and excellent optical and electrical controllability via silicon clads. Second, the bonding mediated by the graphene quantum dots can be used as an optical-wavelength-converting semiconductor interface, as experimentally demonstrated in this study. The proposed fabrication method simultaneously realizes bond formation and interfacial function generation and, thereby, can lead to efficient device production. Our bonding scheme might improve the performance of optoelectronic devices, for example, by allowing spectral light incidence suitable for each photovoltaic material in multijunction solar cells and by delivering preferred frequencies to the optical transceiver components in photonic integrated circuits. |
| Databáze: | OpenAIRE |
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