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Kaladzhian M, von den Driesch N, Demarina N, Povstugar I, Zimmermann E, Jansen MM, Bae JH, Krause C, Bennemann B, Grützmacher D, Schäpers T, Pawlis A. Growth and Electrical Characterization of Hybrid Core/Shell InAs/CdSe Nanowires. ACS Appl Mater Interfaces 2024; 16:11035-11042. [PMID: 38377460 PMCID: PMC10910494 DOI: 10.1021/acsami.3c18267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
Core-only InAs nanowires (NWs) remain of continuing interest for application in modern optical and electrical devices. In this paper, we utilize the II-VI semiconductor CdSe as a shell for III-V InAs NWs to protect the electron transport channel in the InAs core from surface effects. This unique material configuration offers both a small lattice mismatch between InAs and CdSe and a pronounced electronic confinement in the core with type-I band alignment at the interface between both materials. Under optimized growth conditions, a smooth interface between the core and shell is obtained. Atom probe tomography (APT) measurements confirm substantial diffusion of In into the shell, forming a remote n-type doping of CdSe. Moreover, field-effect transistors (FETs) are fabricated, and the electron transport characteristics in these devices is investigated. Finally, band structure simulations are performed and confirm the presence of an electron transport channel in the InAs core that, at higher gate voltages, extends into the CdSe shell region. These results provide a promising basis toward the application of hybrid III-V/II-VI core/shell nanowires in modern electronics.
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Affiliation(s)
- Mane Kaladzhian
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Nils von den Driesch
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
- Peter
Grünberg Institut 10 (PGI 10), Forschungszentrum
Jülich, 52425 Jülich, Germany
| | - Nataliya Demarina
- Peter
Grünberg Institut 2 (PGI 2), Forschungszentrum
Jülich, 52425 Jülich, Germany
| | - Ivan Povstugar
- Central
Institute of Engineering, Electronics and Analytics 3 (ZEA 3), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Erik Zimmermann
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Marvin Marco Jansen
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Jin Hee Bae
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Christoph Krause
- Peter
Grünberg Institut 10 (PGI 10), Forschungszentrum
Jülich, 52425 Jülich, Germany
| | - Benjamin Bennemann
- Peter
Grünberg Institut 10 (PGI 10), Forschungszentrum
Jülich, 52425 Jülich, Germany
| | - Detlev Grützmacher
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Thomas Schäpers
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
| | - Alexander Pawlis
- Peter
Grünberg Institut 9 (PGI 9), Forschungszentrum
Jülich, 52425 Jülich, Germany
- JARA-Fundamentals
of Future Information Technology (JARA-FIT), 52425 Jülich, Germany
- Peter
Grünberg Institut 10 (PGI 10), Forschungszentrum
Jülich, 52425 Jülich, Germany
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