Improved Sensitization of Zinc Oxide Nanorods by Cadmium Telluride Quantum Dots through Charge Induced Hydrophilic Surface Generation

Table 2

XPS quantitative ratios of O²⁻ and OH peaks in air-annealed and as-prepared ZnO NRs before and after UV annealing (UVA) in ultrahigh vacuum. “A” stands for air-annealed NRs and as-grown NRs before UV annealing in their respective rows.

Samples	Ratio before and after UV annealing in UHV
	O1s[UVA]/O1s[A]	O^2−UVA/O^2−[A]	OH[UVA]/OH[A]
Annealed ZnO	0.98	0.95	1.02
As-grown ZnO	1.06	1.02	1.12