Fabrication of Cellulose Binded Titania-Based Nanocomposite Button-Shaped Sensor for Ultrafast Detection of UV Light

The detection of ultraviolet (UV) has always been crucial for human health as their interactions pose severe skin-related issues and increase the possibility of developing cancer. For the same herein, we have fabricated a simple, sono-chemical assisted low-cost TiO2-based composite, over a simple mixing with microcrystalline cellulose which serves as a binder for the formation of TiO2-based pallets. The as-synthesized material acts as a UV sensor which showed a significant change in their photo-response current ~30.9 nA on exposure to 370 nm light. Concerning the viability of the reported procedure, a comparative wavelength-dependent study was performed, using various monochromatic wavelengths of light (370, 390, 427, 456, and 525 nm). The ease of synthesis and fabrication methodology can advocate the suitability of titania-based nano-composite materials for the ultrafast detection of ultraviolet light. Moreover, we performed a simple computational analysis related to the output of UV and non-UV signals which works well for the detection of UV light below 400 nm wavelength based on step size.