TY - JOUR
T1 - Close space vapor transport of gallium nitride in vacuum
AU - Santana-Rodríguez, G.
AU - De Melo, O.
AU - Aguilar-Hernández, J.
AU - Mendoza-Pérez, R.
AU - Monroy, B. M.
AU - Escamilla-Esquivel, A.
AU - López-López, M.
AU - De Moure, F.
AU - Hernández, L. A.
AU - Contreras-Puente, G.
N1 - Funding Information:
The authors acknowledge financial support for this work from CONACYT-SENER under contract 151076 and ICyTDF PICCO 10-29 . This work was partially supported by DGAPA-UNAM PAPIIT Projects IN102411 and IB101612 , CONACyT México under Project 153948 and ICyTDF Project PICCO 10-73 and UACM Project PI2011-52 . OdM and GSCP acknowledge support from CONACyT-México.
PY - 2013
Y1 - 2013
N2 - GaN synthesized by close space vapor transport in vacuum using GaN powder as the source material is reported. According to X-ray diffraction measurements, samples grown onto sapphire substrates are polycrystalline with the wurzite structure, while those grown onto fused silica substrates are amorphous. Scanning electron microscope and energy dispersive spectroscopy results show that the surface of the samples is composed of rounded droplets of GaN. Room temperature photoluminescence shows near band-edge emission and a broad defect band. Possible mechanisms allowing the deposition of GaN from the vapors of GaN powder are discussed.
AB - GaN synthesized by close space vapor transport in vacuum using GaN powder as the source material is reported. According to X-ray diffraction measurements, samples grown onto sapphire substrates are polycrystalline with the wurzite structure, while those grown onto fused silica substrates are amorphous. Scanning electron microscope and energy dispersive spectroscopy results show that the surface of the samples is composed of rounded droplets of GaN. Room temperature photoluminescence shows near band-edge emission and a broad defect band. Possible mechanisms allowing the deposition of GaN from the vapors of GaN powder are discussed.
KW - Close space vapor transport
KW - Gallium nitride
KW - Photoluminescence
KW - Solar cells
UR - http://www.scopus.com/inward/record.url?scp=84873297423&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2013.01.011
DO - 10.1016/j.matlet.2013.01.011
M3 - Artículo
SN - 0167-577X
VL - 96
SP - 34
EP - 37
JO - Materials Letters
JF - Materials Letters
ER -