Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 42, Issue 9, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/0022-3727/42/9/095420
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Funding
- Physics Division, Institute of Nuclear Energy Research of the Republic of China, Taiwan, [982001INER027]
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This study synthesizes Al-doped ZnO (AZO) nanoparticles using a chemical colloid process. Raman scattering analysis shows that Al doping increases the lattice defects and induces Raman vibration modes of 651 cm(-1). The Raman shift of the active mode E-2 (high) of AZO nanoparticles shows the presence and increase in the stress in nanoparticles when the Al dopant concentration increases. Room-temperature photoluminescence (RT-PL) spectra of synthesized AZO nanoparticles exhibit strong UV emissions near the band edges. The RT-PL peak shifts to a higher photon energy region as the Al concentration increases, indicating a broadening of the band gap.
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