Monolayer of silica nanospheres assembled onto ITO-coated glass substrates by spin-coating

In this work, we synthesized colloidal silica nanospheres with an average size of 400 nm through the modified Stober method and successfully fabricated an ordered close-packed silica nanosphere monolayer onto ITO-coated glass substrates using a three-step spin-coating method. ITO films showed resistivity comparable to that of commercial ITO and the silica nanosphere monolayer-coated ITO/glass substrate exhibited good optical transmittance in the visible (550 nm) and near-infrared (900 nm) regions of 62% and 82%, respectively. The results suggest that this monolayer can be used in optoelectronic devices to enhance efficiency in photovoltaic cells.

Automated summary

In this study, colloidal silica nanospheres with an average size of 400 nm were synthesized using the modified Stober method. An ordered close-packed silica nanosphere monolayer was successfully fabricated onto ITO-coated glass substrates through a three-step spin-coating method. The coated ITO/glass substrate showed good optical transmittance in the visible and near-infrared regions, indicating potential applications in optoelectronic devices to enhance efficiency in photovoltaic cells.