Title

Study On Controlled Al-Doped Single-Crystalline Si3N4 Nanobelts

Keywords

Doping; Nanobelts; Polymeric precursor; Pyrolysis; Si N 3 4

Abstract

Controlled Al doped Si3N4 single-crystal nanobelts were synthesized by catalyst-assisted pyrolysis of polymeric precursors. The Al-doping levels can be tailored by varying the Al concentration in the polymeric precursors. The as-synthesized nanobelts were characterized by SEM, XRD, EDS, TEM and HRTEM. The single-crystal belts had perfect crystal structures with few defects such as dislocations and stacking faults. The nanobelts obtained are several tens nanometers in thickness, several hundreds nanometers in width. The growth direction of the Al doped α-Si3N4 nanobelts was [011]. The growth mechanisms of α-Si3N4 nanobelts were proposed to be solid-liquid-gas-sold (SLGS). The optical properties of Al doping Si3N4 nanobelts were measured. Current results suggested that the optical properties of the nanomaterials can be controlled by adjusting Al doping contents.

Publication Date

8-1-2009

Publication Title

Rengong Jingti Xuebao/Journal of Synthetic Crystals

Volume

38

Issue

SUPPL. 1

Number of Pages

181-185

Document Type

Article

Personal Identifier

scopus

Socpus ID

70749118429 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/70749118429

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