Fig. 5.

Ultraviolet, visible and near infrared response. a, b Position-dependent photoresponses around the right STO/Ag interface at a λ = 785 nm with power of 5.1 mW and b 325 nm with power of 2.3 mW. c–e Temporal responses at c λ = 785 nm, d 532 nm and e 325 nm. f Photogenerated voltage versus the temperature difference at λ = 325 nm. The illumination position in panels c–f is at the right STO/Ag interface. The spot sizes of the 785 nm, 532 nm and 325 nm lasers are about 10 μm, 6 μm and 5 μm, respectively