Figure 6.

UV–vis spectra and Kubelka-Munk function. (a) UV–vis diffuse reflectance spectra for different samples and the respective Kubelka-Munk function for estimating the band gap energy (EBG) from variation of (αhν)1/2 with photon energy () (b).

Zhou et al. Nanoscale Research Letters 2014 9:34   doi:10.1186/1556-276X-9-34
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