AI Article Synopsis
- 3C-SiC nanoflakes (NFs) were created on vertically aligned carbon nanotube carpets using the hot-filament chemical vapor deposition method, allowing control over their size and purity.
- The growth of these nanoflakes follows a vapor-solid mechanism, and adjustments to growth conditions can fine-tune their diameter and height.
- The synthesized SiC NFs demonstrate strong violet-blue photoluminescence under UV light, with shifting peak positions based on excitation wavelengths, indicating potential use in photonics and electronic applications.
Article Abstract
Size-controlled and high-purity 3C-SiC nanoflakes (NFs) are synthesized on the tips of vertically aligned carbon nanotube (VA-CNT) carpets with a hot-filament chemical vapor deposition (HF-CVD) method. The average diameter and height of SiC NFs can be tuned by changing the thickness of per-deposited Si and growth conditions. The growth process of the SiC NFs is suggested to be dominated by a vapor-solid (VS) mechanism. The prepared SiC NFs exhibit quantum-confinement effects, emitting strong violet-blue photoluminescence (PL) under ultraviolet excitation. The PL peak position changes from 410 to 416 nm as the excitation line increases from 290 to 400 nm. This result opens the possibility for the application of the luminescent solid-state freestanding 3C-SiC NFs in photonics as well as photonics/electronics integration.
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| http://dx.doi.org/10.1088/0957-4484/27/25/255604 | DOI Listing |
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Article Synopsis
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