Atomic Hydrogen Annealing of Graphene on InAs Surfaces and Nanowires : Interface and Morphology Control for Optoelectronics and Quantum Technologies
(2022) In ACS Applied Nano Materials 5(12). p.17919-17927- Abstract
Folding two-dimensional graphene around one-dimensional III-V nanowires yields a new class of hybrid nanomaterials combining their excellent complementary properties. However, important for high-quality electrical and optical performance, needed in many applications, are well-controlled oxide-free interfaces and a tight folding morphology. To improve the interface chemistry between the graphene and InAs, we annealed the samples in atomic hydrogen. Using surface-sensitive imaging, we found that the III-V native oxides in the interface can be reduced at temperatures that maintain the graphene and the III-V nanostructures. Transferring both single- and multilayer graphene flakes onto InAs NWs, we found that single layers fold tightly... (More)
Folding two-dimensional graphene around one-dimensional III-V nanowires yields a new class of hybrid nanomaterials combining their excellent complementary properties. However, important for high-quality electrical and optical performance, needed in many applications, are well-controlled oxide-free interfaces and a tight folding morphology. To improve the interface chemistry between the graphene and InAs, we annealed the samples in atomic hydrogen. Using surface-sensitive imaging, we found that the III-V native oxides in the interface can be reduced at temperatures that maintain the graphene and the III-V nanostructures. Transferring both single- and multilayer graphene flakes onto InAs NWs, we found that single layers fold tightly around the NWs, while the multilayers fold weakly with a decline of only a few degrees. Annealing in atomic hydrogen further tightens the folding. Together, this indicates that high-quality morphological and chemical control of this hybrid material system is possible, opening for future devices for quantum technologies and optoelectronics.
(Less)
- author
- organization
- publishing date
- 2022-12-23
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- AFM, graphene, hydrogen, InAs, LEEM, nanowires, oxide, semiconductors, XPEEM, XPS
- in
- ACS Applied Nano Materials
- volume
- 5
- issue
- 12
- pages
- 9 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85142600678
- ISSN
- 2574-0970
- DOI
- 10.1021/acsanm.2c03891
- language
- English
- LU publication?
- yes
- id
- cd064d56-f906-4cd4-b9c0-e6071bffce53
- date added to LUP
- 2023-01-25 11:25:38
- date last changed
- 2023-11-21 06:00:42
@article{cd064d56-f906-4cd4-b9c0-e6071bffce53, abstract = {{<p>Folding two-dimensional graphene around one-dimensional III-V nanowires yields a new class of hybrid nanomaterials combining their excellent complementary properties. However, important for high-quality electrical and optical performance, needed in many applications, are well-controlled oxide-free interfaces and a tight folding morphology. To improve the interface chemistry between the graphene and InAs, we annealed the samples in atomic hydrogen. Using surface-sensitive imaging, we found that the III-V native oxides in the interface can be reduced at temperatures that maintain the graphene and the III-V nanostructures. Transferring both single- and multilayer graphene flakes onto InAs NWs, we found that single layers fold tightly around the NWs, while the multilayers fold weakly with a decline of only a few degrees. Annealing in atomic hydrogen further tightens the folding. Together, this indicates that high-quality morphological and chemical control of this hybrid material system is possible, opening for future devices for quantum technologies and optoelectronics.</p>}}, author = {{Mousavi, S. Fatemeh and Liu, Yen Po and D'Acunto, Giulio and Troian, Andrea and Caridad, José M. and Niu, Yuran and Zhu, Lin and Jash, Asmita and Flodgren, Vidar and Lehmann, Sebastian and Dick, Kimberly A. and Zakharov, Alexei and Timm, Rainer and Mikkelsen, Anders}}, issn = {{2574-0970}}, keywords = {{AFM; graphene; hydrogen; InAs; LEEM; nanowires; oxide; semiconductors; XPEEM; XPS}}, language = {{eng}}, month = {{12}}, number = {{12}}, pages = {{17919--17927}}, publisher = {{The American Chemical Society (ACS)}}, series = {{ACS Applied Nano Materials}}, title = {{Atomic Hydrogen Annealing of Graphene on InAs Surfaces and Nanowires : Interface and Morphology Control for Optoelectronics and Quantum Technologies}}, url = {{http://dx.doi.org/10.1021/acsanm.2c03891}}, doi = {{10.1021/acsanm.2c03891}}, volume = {{5}}, year = {{2022}}, }