Table 1.

Binding energy and peak area ratio of Cd 3s and Cd 4s used for the Davis model.

sample	Cd 3s BE | [eV]	Cd 4s BE [eV]	ratio 3s/4s	particle size [Å]
CdS1	770.7	109.0	3.288	7.0
CdS2	770.4	108.8	3.165	9.0
CdS3	770.4	108.7	2.831	16.0
CdS4	770.4	108.7	2.468	28.0
CdS5	770.3	108.6	2.378	33.0
CdS6	770.3	108.7	2.017	80.0
CdS reference	770.2	108.6	1.886	—