Table 1 Bandgap versus Urbach energy.

From: An in-depth analysis of nucleation and growth mechanism of CdS thin film synthesized by chemical bath deposition (CBD) technique

Samples

Band gap (eV)

Urbach energy (eV)

CdS

2.43

0.19

CdS + Ag

2.26

0.54

CdS + MPA

2.52

0.09

CdS + Ag + MPA

2.48

0.11

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