Table 1
Optical band gap (Eg) and nanoparticle diameter (dabs) as calculated from tauc plots and Wang equation
[ZnS]/mM	0.1	0.2	0.3	0.4	0.5	0.6	0.7
Eg/eV	3.88	3.93	3.97	3.95	3.94	3.99	3.96
dabs/nm	7.31	6.52	6.03	6.26	6.39	5.82	6.14

Mehta et al. Nanoscale Research Letters 2008 4:17   doi:10.1186/1556-276X-4-17