Dc2200 terminal

The morphologies of PPy-NPs were characterized by field emission scanning electron microscope (JSM-7800F) at an operating voltage of 10 kV. The UV-vis-NIR absorption spectra of ionogels were recorded using a PE UV-1750 spectrophotometer. UV-vis-NIR absorption of ionogel-Ag junction was measured with a PE Lambda 950 spectrophotometer. The tensile properties were tested by a tensile-compressive tester (MDW-500 N) with a strain rate of 60 mm min⁻¹. All photoelectrical measurements were carried out through a Keithley 4200 semiconductor parameter analyzer. The light pulses with tunable wavelengths, intensities, and frequencies came from a LED driver (THORLABS, DC2200 Terminal). A series of LED sources covering wavelengths from UV, visible, and NIR (THORLABS, M365L3, M455L4, M530L4, M590L4, M680L4) were utilized. All thermal images were taken by using an infrared camera (FLIR Ti100). The optical power density is measured by an optical power meter (CEL-NP2000). A The light source system was housed in the Keithley 4200 semiconductor shielding box to prevent interference from external light signals. All electrical and optical measurements were conducted under atmospheric pressure and at room temperature.

All electrical and optical properties were characterized using the Keithley 4200 SCS semiconductor parameter analyzer under environmental conditions. Measure photogenerated current by applying a bias voltage to the two terminals of the planar device through a probe. Adjust light pulses of different intensities, frequencies, and wavelengths through high‐power LED drivers (THORLABS, DC2200 Terminal) and series LED light sources (THORLABS, M365L3, M455L4, M530L4, M590L4, M625L4, M680L4, and M970L4). In the time‐current mode, by adjusting the light conditions, including the light duration, pulse frequency, radiant intensity, and pulse number, multiple control groups were established in the experiment to explore the changes in the performance of photodetectors and photosynapses. By studying the synaptic behavior of various synaptic devices to different light signals, the light response of artificial visual arrays was studied.