Surface Modification on the Sputtering-Deposited ZnO Layer for ZnO-Based Schottky Diode

Table 5

Compositions of the Zn–Zn, Zn–S, and Zn–O chemical bonds for the untreated and (NH₄)₂S_𝑥-treated ZnO layer surfaces.

Samples	Untreated	(NH4)2S𝑥-treated
Zn–Zn (%)	30	4
Zn–S (%)	—	26
Zn–O (%)	70	70