Optical sensor and method

Details Optical sensor and method Optical sensor and method

1995-02-06

1997-05-13

Saadat, Mahshid D.

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

In combination with or also constituting light responsive...

257103, 257 81, H01L 2715, H01L 3300

Patent

active

056295332

ABSTRACT:
An optical sensor (10,30) uses a polymer light emitting diode (12, 31, 41, 51) to emit light detected by a polymer photodetector (13, 36, 46, 56). The polymer light emitting diode (12, 31, 41, 51) containing an indicator that reacts with an analyte and alters the light emitted by the polymer light emitting diode (12, 31, 41, 51). The change is detected by the polymer photodector (13, 36, 46, 56) and is used to detect the presence of the analyte.

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Zhang et al., "Photonic Devices made with Semiconducting Conjugated Polymers: New Developments", Synthetic Metals, vol. 71, No. 1-3, Apr. 1995, pp. 2241-2242.
G. Yu et al., "Optocoupler Made from Semiconducting Polymers", Journal of Electronic Materials, vol. 23, No. 9, 1994, pp. 925-928.
G. Yu et al., "Dual-function semiconducting polymer devices: Light-emitting and photodetecting diodes", Appl. Phys. Lett. 64 (12), Mar. 21, 1994, pp. 1540-1542.

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