Synthesis of High Crystalline Al-Doped ZnO Nanopowders from Al₂O₃ and ZnO by Radio-Frequency Thermal Plasma

Table 1

Relative cation composition changes between the as-mixed precursors and the as-synthesized powders based on X-ray fluorescence data.

Designed	Constituent (at.%)	Zn	Al
3.3 at.% Al-doped ZnO	Mixed precursors	96.8	3.2
	As-synthesized	97.1	2.9
	Increment	+0.3	−0.3
6.7 at.% Al-doped ZnO	Mixed precursors	93.8	6.2
	As-synthesized	94.8	5.2
	Increment	+1.0	−1.0