title: Bidirectional current triggering in planar devices based on serially connected VO2thin films using 965 nm laser diode.
abstract: By incorporating a 965 nm laser diode, the bidirectional current triggering of up to 30 mA was demonstrated in a two-terminal planar device based on serially connected vanadium dioxide (VO2) thin films grown by pulsed laser deposition. The bidirectional current triggering was realized by using the focused beams of laser pulses through the photo-thermally induced phase transition of VO2. The transient responses of laser-triggered currents were also investigated when laser pulses excited the device at a variety of pulse widths and repetition rates of up to 4.0 Hz. A switching contrast between off- and on-state currents was obtained as ~8333, and rising and falling times were measured as ~39 and ~29 ms, respectively, for 50 ms laser pulses.
authors: Jihoon
authors: J
authors: Kim
authors: Kyongsoo
authors: K
authors: Park
authors: Bong-Jun
authors: BJ
authors: Kim
authors: Yong Wook
authors: YW
authors: Lee