[15p-B13-1~7] 12.3 Functional Materials and Novel Devices

[15p-B13-3] Laser patterning of one-dimensional transistor channels in a photochromic layer

〇Tohru Tsuruoka¹, Ryoma Hayakawa¹, Kazuyoshi Kobashi^1,2, Kenji Higashiguchi³, Kenji Matsuda³, Yutaka Wakayama^1,2 (1.NIMS, 2.Kyushu Univ., 3.Kyoto Univ.)

Keywords:organic transistor, one-dimensional channel, laser patterning

Optically reconfigurable one-dimensional (1D) transistor channels are realized by using the phase transition between semiconducting (closed-ring isomer) and insulating (open-ring isomer) states of a photochromic diarylethene layer. By alternately scanning focused layer beams of ultra-violet and visible lights between the source and drain electrodes, multiple 1D channels with different conductivities can be written and erased repeatedly. Moreover, a current adder circuit is formed by overlaid drawing two channels, and optical summing operations are demonstrated.