Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1994-09-14
1996-06-04
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250214LA, 250214LS, 257103, H01J 4014
Patent
active
055235557
ABSTRACT:
A photodetector device includes a semiconductive conjugated polymer, such as PPV, arranged between first and second electrode layers having different work functions, a bias circuitry connected to apply a bias voltage between the first and second electrode layers, and a sensing circuitry connected to detect a photocurrent flowing between the first and second electrode layers across the polymer layer as a result of radiation incident on the polymer layer while the bias voltage is applied. The bias voltage is selected in relation to the thickness of the polymer layer.
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Bradley Donal D. C.
Friend Richard H.
Holmes Andrew B.
Marks Robert N.
Cambridge Display Technology
Le Que T.
Westin Edward P.
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