Artificial Intelligence-Aided Low Cost and Flexible Graphene Oxide-Based Paper Sensor for Ultraviolet and Sunlight Monitoring

Table 1 Comparison of important features of available flexible UV/Sunlight sensors

References	Material/hybrid	Substrate	Fabrication technique	Biodegradability	Cumulative dose	Type of detection	AI-aided
[57]	Graphene/ZnO	Paper	Direct writing	Yes	No	Photoelectric	No
[58]	ZnO/carbon	Paper	Screen printing and Miura origami folding method	Yes	No	Photoelectric	No
[59]	rGO/ZnO	Mica	Femtosecond laser direct writing (FsLDW)	Yes	No	Photoelectric	No
[60]	TiO₂/Graphene	Parylene-C/Silicon	Photolithography and Spraying	No	No	Photoelectric	No
[61]	Prussian Blue/TiO₂	Polyethylene terephthalate (PET)/ indium-tin oxide (ITO)	Cyclic voltammetry Scan, anodization and annealing	–	No	Photochromic	No
[62]	C1H/MG, DPIC/TB^a	Polyvinyl Butyral (PVB)	Spin coating	No	Yes	Photochromic	No
[63]	PMA/LA^b	Filter paper	Pen writing	–	Yes	Photochromic	No
Current work	GO/Paper	NA	Blending GO and paper through novel fabrication process	Yes	Yes	Photochromic	Yes