Large-scale synthesis of single-phase, high-quality GaN nanocrystallites.
- Resource Type
- Article
- Authors
- Wang, J.C.; Yu, D.P.; Li, C.Y.; Zhou, J.F.; Wang, Y.Z.; Feng, S.Q.
- Source
- Applied Physics A: Materials Science & Processing. 2004, Vol. 78 Issue 5, p753-755. 3p.
- Subject
- *GALLIUM nitride
*NANOCRYSTALS
*DIRECT reactions (Nuclear physics)
*AMMONIA
*X-ray diffraction
*PHOTOLUMINESCENCE
- Language
- ISSN
- 0947-8396
Large-scale synthesis of high-quality GaN nano-crystallites has been achieved by direct reaction of a 4:1 molar Ga/Ga[sub 2]O[sub 3] mixture with ammonia at 950 °C. X-ray diffraction, transmission electron microscopy, selected-area electron diffraction and high-resolution transmission electron microscopy revealed that the produced GaN nanocrystallites were single hexagonal wurtzite structure with an average particle size around 45 nm. A sharp near band edge emission peak and a blue light emission peak were observed in photoluminescence spectroscopy. The synthesis approach is simple and easy to be commercialized. [ABSTRACT FROM AUTHOR]