Abstract:
PROBLEM TO BE SOLVED: To form a TFT device having at least an on-off ratio of 10 from an org. semiconductor. SOLUTION: An org. semiconductor material is a coordination compd. of phthalocyanine(Pc) with Cu, Zn, Sn or H, which forms an orderly film and reveals a high field effect mobility with a lower conductivity than that of amorphous doped phthalocyanine. An embodiment of a device 20 is an MISFET having an active layer made of an org. semiconductor and 3 contacts (e.g. Au) 15, 17, 19 two of which (17, 19) physically contact with a semiconductor layer, while the third contact 15 controls the current flowing in the semiconductor layer 21. In the manufacturing process a phthalocyanine coordination compd., layer is formed on a heated substrate 11 in a range of at about 30 to about 200 deg.C (pref. about 125 to about 175 deg.C).
Abstract:
An electronic odor sensor includes first and second amplifiers (421 to 42N), a biasing network (521 to 52N), and a device (56) connected to receive the output signals from the first and second amplifiers. The device (56) is configured to correlate the received output signals to the presence or absence of an odor. The first and second amplifiers have respective first and second organic semiconductor layers (531 to 53N) and are configured to produce output signals responsive to the conductivities of their respective organic semiconductor layers. The conductivities of the organic semiconductor layers are responsive to voltages applied to associated ones of the amplifiers and to the presence of the odor. The biasing network applies the voltages to the amplifiers.
Abstract:
An LED device that emits light in a pattern is disclosed. The LED device is a layer of active material that is sandwiched between a transparent substrate with an anode formed thereon and a cathode. The active material has a layer of light emitting material that emits light when electron/hole recombination is induced in the material.The patterned emission is defined by a patterned layer in the active material of the LED device. The patterned layer has at least a first thickness and a second thickness. When the device is on, the portion of the device associated with the first thickness of the patterned layer is visually distinct from the portion of the device that is associated with the second thickness of the patterned layer.
Abstract:
An optically controlled switch includes first and second electrodes, a chann el extending between the electrodes, and a light source positioned to illuminat e the channel. The light source produces a wavelength capable of changing the material's conductivity. The channel includes a photosensitive organic material and is configured to operate as a light controlled switch.
Abstract:
A three-terminal device includes first electrode, second electrode, gat e electrode and an active channel coupling the first and second electrodes. Th e active channel has a layer of organic molecules with conjugated multiple bonds. The delocalized .pi.-orbitals associated with the conjugated multiple bonds exte nd normal to the layer.
Abstract:
An electronic odor sensor includes first and second amplifiers (421 to 42N), a biasing network (521 to 52N), and a device (56) connected to receive the output signals from the first and second amplifiers. The device (56) is configured to correlate the received output signals to the presence or absence of an odor. The first and second amplifiers have respective first and second organic semiconductor layers (531 to 53N) and are configured to produce output signals responsive to the conductivities of their respective organic semiconductor layers. The conductivities of the organic semiconductor layers are responsive to voltages applied to associated ones of the amplifiers and to the presence of the odor. The biasing network applies the voltages to the amplifiers.
Abstract:
An optically controlled switch includes first and second electrodes, a chann el extending between the electrodes, and a light source positioned to illuminat e the channel. The light source produces a wavelength capable of changing the material's conductivity. The channel includes a photosensitive organic material and is configured to operate as a light controlled switch.