Low-Temperature Growth of Axial Si/Ge Nanowire Heterostructures Enabled by Trisilane
Source abstract
Abstract
Axial Si/Ge heterostructure nanowires, despite their promise in applications ranging from electronics to thermal transport, remain notoriously difficult to synthesize. Here, we grow axial Si/Ge heterostructures at low temperatures using a Au catalyst with a combination of trisilane and digermane. This approach yields, as determined with detailed electron microscopy characterization, arrays of epitaxial Si/Ge nanowires with excellent morphologies and purely axial composition profiles. Our data indicate that heterostructure formation can occur via the vapor–liquid–solid or vapor–solid–solid mechanism. These findings highlight the importance of precursor chemistry in semiconductor nanowire synthesis and open the door to Si/Ge nanowires with programmable quantum domains.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nanowire Synthesis and Applications · Advancements in Semiconductor Devices and Circuit Design · Semiconductor materials and interfaces
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, Catalonia 08193, Spain
ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Catalonia, Spain
Funding
Georgia Institute of Technology · Ministerio de Econom?a y Competitividad · Generalitat de Catalunya · Division of Chemical, Bioengineering, Environmental, and Transport Systems · Institute for Electronics and Nanotechnology, Georgia Institute of Technology
References (52)
Show source-provided references
1. 10.1021/nl025875l10.1021/nl025875l ↗
2. 10.1021/nl100161z10.1021/nl100161z ↗
3. 10.1021/nl104265u10.1021/nl104265u ↗
4. 10.1038/415617a10.1038/415617a ↗
5. 10.1021/nl400052w10.1021/nl400052w ↗
6. 10.1146/annurev-matsci-071312-12165910.1146/annurev-matsci-071312-121659 ↗
7. 10.1039/c1ce05821e10.1039/c1ce05821e ↗
8. 10.1021/nl204263k10.1021/nl204263k ↗
9. 10.1088/0957-4484/19/33/33560310.1088/0957-4484/19/33/335603 ↗
10. 10.1021/acs.nanolett.5b0222410.1021/acs.nanolett.5b02224 ↗
11. 10.1021/acs.nanolett.5b0025310.1021/acs.nanolett.5b00253 ↗
12. 10.1021/cr400261y10.1021/cr400261y ↗
13. 10.1126/science.106619210.1126/science.1066192 ↗
14. 10.1021/nl303205810.1021/nl3032058 ↗
15. 10.1063/1.152799510.1063/1.1527995 ↗
16. Amato M. · 2014 · 16 · 497
17. 10.1063/1.161922110.1063/1.1619221 ↗
18. 10.1021/nl301971k10.1021/nl301971k ↗
19. 10.1021/nl400146u10.1021/nl400146u ↗
20. 10.1016/j.tsf.2011.02.00510.1016/j.tsf.2011.02.005 ↗
21. 10.1088/0957-4484/22/30/30560410.1088/0957-4484/22/30/305604 ↗
22. 10.1021/nl202126q10.1021/nl202126q ↗
23. 10.1021/acs.nanolett.5b0395010.1021/acs.nanolett.5b03950 ↗
24. 10.1021/nl072849k10.1021/nl072849k ↗
25. 10.1021/nl015688810.1021/nl0156888 ↗
26. 10.1063/1.324059510.1063/1.3240595 ↗
27. 10.1063/1.493734510.1063/1.4937345 ↗
28. 10.1063/1.46768610.1063/1.467686 ↗
29. 10.1016/0039-6028(86)90171-810.1016/0039-6028(86)90171-8 ↗
30. 10.1016/0169-4332(89)90925-210.1016/0169-4332(89)90925-2 ↗
31. 10.1021/nn301978x10.1021/nn301978x ↗
32. 10.1126/science.117860610.1126/science.1178606 ↗
33. 10.1063/1.9691510.1063/1.96915 ↗
34. 10.1016/S0039-6028(01)01340-110.1016/S0039-6028(01)01340-1 ↗
35. 10.1016/S0167-5729(99)00005-910.1016/S0167-5729(99)00005-9 ↗
36. 10.1016/S0039-6028(00)00386-110.1016/S0039-6028(00)00386-1 ↗
37. 10.1063/1.153166210.1063/1.1531662 ↗
38. 10.1021/nl300461a10.1021/nl300461a ↗
39. 10.1021/jacs.5b0381810.1021/jacs.5b03818 ↗
40. 10.1002/adma.20060231810.1002/adma.200602318 ↗
41. 10.1088/0957-4484/20/14/14570410.1088/0957-4484/20/14/145704 ↗
42. 10.1016/S0304-3991(98)00035-710.1016/S0304-3991(98)00035-7 ↗
43. 10.1021/acs.nanolett.6b0164010.1021/acs.nanolett.6b01640 ↗
44. 10.1021/acs.nanolett.5b0512510.1021/acs.nanolett.5b05125 ↗
45. 10.1021/nl503273j10.1021/nl503273j ↗
46. 10.1021/nl301185x10.1021/nl301185x ↗
47. 10.1007/s00339-007-4376-z10.1007/s00339-007-4376-z ↗
48. 10.1021/nl101972210.1021/nl1019722 ↗
49. 10.1126/science.113910510.1126/science.1139105 ↗
50. 10.1116/1.58929110.1116/1.589291 ↗
51. 10.1021/acs.nanolett.5b0288010.1021/acs.nanolett.5b02880 ↗
52. 10.1021/nn501403v10.1021/nn501403v ↗