TY - JOUR
T1 - Optical and electrical properties of Mg-doped AlN nanowires grown by molecular beam epitaxy
AU - Connie, Ashfiqua Tahseen
AU - Zhao, Songrui
AU - Sadaf, Sharif Md
AU - Shih, Ishiang
AU - Mi, Zetian
AU - Du, Xiaozhang
AU - Lin, Jingyu
AU - Jiang, Hongxing
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015/5/25
Y1 - 2015/5/25
N2 - In this paper, the optical and electrical properties of Mg-doped AlN nanowires are discussed. At room temperature, with the increase of Mg-doping concentration, the Mg-acceptor energy level related optical transition can be clearly measured, which is separated about 0.6 eV from the band-edge transition, consistent with the Mg activation energy in AlN. The electrical conduction measurements indicate an activation energy of 23 meV at 300 K-450 K temperature range, which is significantly smaller than the Mg-ionization energy in AlN, suggesting the p-type conduction being mostly related to hopping conduction. The free hole concentration of AlN:Mg nanowires is estimated to be on the order of 1016cm-3, or higher.
AB - In this paper, the optical and electrical properties of Mg-doped AlN nanowires are discussed. At room temperature, with the increase of Mg-doping concentration, the Mg-acceptor energy level related optical transition can be clearly measured, which is separated about 0.6 eV from the band-edge transition, consistent with the Mg activation energy in AlN. The electrical conduction measurements indicate an activation energy of 23 meV at 300 K-450 K temperature range, which is significantly smaller than the Mg-ionization energy in AlN, suggesting the p-type conduction being mostly related to hopping conduction. The free hole concentration of AlN:Mg nanowires is estimated to be on the order of 1016cm-3, or higher.
UR - http://www.scopus.com/inward/record.url?scp=84930644707&partnerID=8YFLogxK
U2 - 10.1063/1.4921626
DO - 10.1063/1.4921626
M3 - Article
AN - SCOPUS:84930644707
VL - 106
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 21
M1 - 213105
ER -