Hexagonal Nanocrystals into AlGaN Powders Obtained via Pyrolysis from an Organometallic Compound

Ana Maria Herrera, Godofredo García, Erick Gastellóu, Fabiola Nieto, Rafael García, Gustavo Alonso Hirata, Oscar Edel Contreras, Crisoforo Morales, Enrique Rosendo and Tomas Díaz

European Journal of Engineering and Technology Research, 2019, vol. 4, issue 3, 68-72

Abstract: Hexagonal nanocrystals into Al0.2Ga0.8N and Al0.6Ga0.4N powders via pyrolysis from an organometallic compound, followed by a nitridation process in ammonia flow at 1000 °C for two hours were obtained. X-ray diffraction patterns demonstrated a shift towards greater angles to the right for the AlGaN powders with respect to GaN powders, this shift could indicate the formation of the AlGaN powders. Scanning electron microscopy micrographs showed the obtaining from semi-plates of porous appearance for the Al0.2Ga0.8N powders until well-defined plates for the Al0.6Ga0.4N powders. High resolution transmission electron microscopy micrographs demonstrated the presence of hexagonal nanocrystals into Al0.2Ga0.8N powders with an average crystal size of 10.3 nm, while that for the Al0.6Ga0.4N powders an average crystal size of 9.7 nm was observed. UV-visible spectra showed a transmittance cut-off for the Al0.2Ga0.8N powders of 3.71 eV (334.2 nm) and a transmittance cut-off of 4.53 eV (273.7 nm) for the Al0.6Ga0.4N powders.

Keywords: Nanocrystals; Nitridation; Pyrolysis; Semiconductor (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://eu-opensci.org/index.php/ejeng/article/view/61183 Abstract page (text/html)
https://eu-opensci.org/index.php/ejeng/article/download/61183/12056 Full text (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:4:y:2019:i:3:id:61183

DOI: 10.24018/ejeng.2019.4.3.1183

Access Statistics for this article

More articles in European Journal of Engineering and Technology Research from European Open Science
Bibliographic data for series maintained by Support ().