Laser-Regulated 60 mA Current Switching in VO2-Based Two-Terminal Device Using 976 nm Laser Diode.
J Nanosci Nanotechnol
; 19(3): 1620-1625, 2019 03 01.
Article
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| MEDLINE
| ID: mdl-30469233
ABSTRACT
By incorporating a high-power 976 nm laser diode (LD), we demonstrated laser-regulated current switching in a two-terminal planar device based on a vanadium dioxide (VO2) thin film. The VO2 thin film was grown by pulsed laser deposition method and etched to sub-millimeter dimension for the fabrication of a two-terminal device. The reversible current switching was implemented by controlling the on/off state of the LD, which illuminates the VO2-based device. The transient responses of the device currents were analyzed when the device was excited with laser pulses of various repetition rates of up to 5.0 Hz with a pulse width fixed as 75 ms. A switching contrast between off- and on-state currents was calculated as ~9530, and average rising and falling times were measured as ~31 and ~21 ms, respectively.
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MEDLINE
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En
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J Nanosci Nanotechnol
Año:
2019
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Article