Photosensitization of Colloidal SnO₂ Semiconductor Nanoparticles with Xanthene Dyes

Table 1

Excitation (𝜆_ex) and emission (𝜆_em) wavelengths of the xanthene dyes and apparent association constant (𝐾_app) from fluorescence data for dyes with colloidal SnO₂.

S. number	Dyes	𝜆ex (nm)	𝜆em (nm)	𝐾app × 10^3 M^−1
1	Fluorescein	478	513	16.6
2	Eosin	517	538	0.8766
3	Erythrosine B	526	550	0.7241

∗The uncertainties of the estimated constants are ±6%.