Sensitivity comparison of SAW based photodetectors.

Materials	Piezoelectric substrate	Central frequency	Wavelength	Sensitivity (ppm (μW cm−2)−1)	Ref.
ZnO film	LiNbO3	36.3 MHz	365 nm	0.12	28
ZnO nanoparticles	YZ LiNbO3	64 MHz	345 nm	2.8	29
ZnO nanowire	128° YX LiNbO3	50.9 MHz	365 nm	8.765	30
ZnO nanoparticles	128° YX LiNbO3	235 MHz	365 nm	3.34	31
MoS2 nanosheets	ZnO	1.02 GHz	365 nm	2.05	8
Bi2S3 nanobelts	ST-cut quartz	200.02 MHz	625 nm	0.2	This work