Abstract
GaN:ZnO solid solution nanoparticles and films were synthesized by using ZnGa 2 O 4 nanoparticles with a particle size of below 25 nm obtained hydrothermally as a precursor. Nitridation of powder ZnGa 2 O 4 nanoparticles led to the formation of GaN:ZnO nanoparticles. The nitrided samples have higher specific surface area than those obtained by conventional method, which induces higher photocatalytic NO x decomposition activity. In addition, a transparent coating film with ZnGa 2 O 4 nanoparticles was converted to GaN:ZnO film after nitridation. The nitrided film absorbs UV and blue light and is transparent for light of wavelength over 500 nm (the transmittance is over 90 %). This means that the nitridation does not lead to the formation of scattering domains by the large-size particles and cracks. This method for film preparation is much cheaper than conventional CVD and sputtering processes. These results strongly suggest the utility of ZnGa 2 O 4 nanoparticles not only for the formation of GaN:ZnO solid solution nanoparticles with high specific surface area but also for the preparation of transparent GaN:ZnO solid solution films.
Original language | English |
---|---|
Pages (from-to) | 1999-2005 |
Number of pages | 7 |
Journal | European Journal of Inorganic Chemistry |
Volume | 2019 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2019 Apr 16 |
Keywords
- Nanostructures
- Nitrides
- Oxynitrides
- Photocatalysis
- Thin films
ASJC Scopus subject areas
- Inorganic Chemistry