Structural, compositional, and photoluminescence characterization of thermal chemical vapor deposition-grown Zn₃N₂ microtips

Journal Article · Tue Oct 14 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4897549· OSTI ID:22305785

Wei, Pai-Chun; Chang, Chung-Chieh; Hsu, Chia-Hao ^[1]; Tong, Shih-Chang; Shen, Ji-Lin ^[2]; Tseng, Chuan-Ming ^[1]

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1. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)
2. Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan (China)

The catalytic growth of Zn₃N₂ using guided-stream thermal chemical vapor deposition has been investigated within the parameter range of acicular growth to obtain uniform microtips with a high crystalline quality. The cubic anti-bixbyite crystal structure of Zn₃N₂ microtips and its related phonon mode are revealed by X-ray diffraction and Raman spectroscopy, respectively. The surface morphologies of pure and surface-oxidized Zn₃N₂ microtips are depicted by scanning electron microscopy and show the crack formation on the surface-oxidized Zn₃N₂ microtips. The spatial element distribution map confirms the VLS growth mechanism for Zn₃N₂ microtips and reveals the depth profile of zinc, nitrogen, oxygen, and nickel elements. Photoluminescence (PL) spectra of Zn₃N₂ microtips show a sharp infrared band-to-band emission peak at 1.34 eV with a full width at half maximum of ~100 meV and a very broad oxygen-related defect band emission peak centered at ~0.85 eV.

• OSTI ID: 22305785
• Journal Information: Journal of Applied Physics, Vol. 116, Issue 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHEMICAL VAPOR DEPOSITION
CRACK PROPAGATION
CRYSTAL DEFECTS
CRYSTAL GROWTH
CRYSTAL STRUCTURE
DISTRIBUTION
EV RANGE
NICKEL
NITROGEN
OXYGEN
PHONONS
PHOTOLUMINESCENCE
RAMAN SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SPECTRA
STREAMS
SURFACES
X-RAY DIFFRACTION
ZINC
ZINC NITRIDES