One-step synthesis of single-crystal Si3N4 nanowires-amorphous SiO2 beads nanochains by chemical vapor deposition
Source abstract
Abstract
One-dimensional (1D) nanochain heterojunctions have attracted wide attention due to their unique optical and electrical properties, while efficient and controllable synthesis of nanochains is still difficult. Herein, Si 3 N 4 /SiO 2 nanochain heterojunctions (Si 3 N 4 single-crystal nanowires and amorphous SiO 2 beads) were successfully synthesized by a one-step chemical vapor deposition (CVD) process without using any templates and catalysts. A two-stage growth mode was proposed to explain the formation mechanism of the special nanochain. We found that carbon vapor induced the formation of Si 3 N 4 nanowires and suppressed the formation of Si 2 N 2 O. The Si 3 N 4 /SiO 2 nanochains can only be synthesized within a suitable concentration range of carbon vapor. The as-synthesized fascinating nanochain exhibits an extra strong emission at about 3.02 eV, showing great promise for optoelectronic nanodevices .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nanowire Synthesis and Applications · Silicon Nanostructures and Photoluminescence · Photonic Crystals and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
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