Fig. 3: Demonstration of the OELGs via the single SPPD.
From: Perovskite multifunctional logic gates via bipolar photoresponse of single photodetector
a, b Symbolic schematics of five OELGs executed with single SPPD. a “OR” and “AND” gates using two visible light inputs (625 nm) under NIR light (940 nm) gate modulations; b “NOR”, “NOT”, and “NAND” gates using NIR light inputs (940 nm) under visible light (625 nm) gate modulations. I is an output photocurrent. c Truth table of the five OELGs for the four input combinations. d–g Optoelectronic logic gate operations. d Photocurrent output via visible light (625 nm) inputs depending on NIR irradiance (940 nm). e Transient photocurrent curves of “OR” and “AND” gates in response to visible inputs (0.6 mW cm−2) under NIR modulation of 0.3 and 2.3 mW cm−2, respectively. f Photocurrent output via NIR (940 nm) light inputs depending on visible irradiance (625 nm). g Transient photocurrent curves of “NOR”, “NOT”, and “NAND” gates in response to NIR inputs (1.9 mW cm−2) under visible modulation of 1.9, 1.9, and 7 mW cm−2, respectively.
