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Research Article

Retina-Inspired Organic Heterojunction-Based Optoelectronic Synapses for Artificial Visual Systems

Figure 2

Output characteristics of the optoelectronic synapse. EPSC changes of the optoelectronic synapse induced by light pulses (a) under different wavelengths but an identical intensity of 0.66 mW cm-2 and (b) under green light with various densities (1 s duration with 0.5 s interval). The STM-to-LTM transition triggered by increasing the (c) number, (d) frequency, and (e) illuminating time of light pulses.

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