Fig. 2 | Nature Communications

Fig. 2

From: Organic field-effect optical waveguides

Fig. 2

Schematic and actual device of CHICZ-based OFEWs. a Gold stripes prepared for source and drain electrodes by “gold stripes stick technique”. b Schematic of an OFEW constructed based on an individual CHICZ crystal ribbon with gold stripes as source and drain electrodes. Two models for optical waveguide direction, along the conducting channel (model I), and perpendicular to the conducting channel (model II). c Device working in model I, current transport is parallel with the optical waveguide direction. Scale bar: 20 μm. d Device working in model II, current transport is perpendicular to the laser, where a large thin crystal is selected for easy experimental operation. Scale bar: 20 μm. e and f Laser in and out of the devices working in modes I and II, respectively, demonstrating a typical optical waveguide feature in the active device

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