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(Color online) Schematic view of the air-gap single crystal transistor (SCFET) used here. The blue laser is shown through a semitransparent Au gate. Channel dimensions of the SCFETs explored in this experiment are and
(Color online) Output characteristics of a rubrene SCFET in the dark vs under illumination. Please note the high off-current at indicative of the photoconduction process in the bulk.
(Color online) (a) Rise (black) and decay (red) of measured at and under continuous illumination. . The open squares indicate the points at which transfer characteristics shown in (b) were measured. (b) Transfer characteristics measured in the dark before (black) and after (red) illumination and under illumination (blue) indicating a strong shift. Inset: semilog plot of the same data. (c) Photocurrent transients in the microsecond time range measured by applying short light pulses in the drain area showing immediate recombination of the charge carriers.
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