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Polymer Based Photodetectors

Published online by Cambridge University Press:  17 March 2011

K. S. Narayan ,
D. Kabra  and
S. Dutta
K. S. Narayan
Affiliation:
Chemistry and Physics of Material Unit Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur, Bangalore, 560064, India
D. Kabra
Affiliation:
Chemistry and Physics of Material Unit Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur, Bangalore, 560064, India
S. Dutta
Affiliation:
Chemistry and Physics of Material Unit Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur, Bangalore, 560064, India
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Abstract

Recent developments in our laboratory related to polymer-based light sensors are reviewed. The inherent processibility of the active polymer medium is utilized in the implementation of different designs for the opto-electronic applications. The utility of these devices as sensitive photodetectors, image sensors and position sensitive detectors is demonstrated. The schottky-type layer formation at interfaces of polymers such as polyalkylthiophenes and aluminum accompanied by the enhanced photo-induced charge separation due to high local electric field is tapped for some of these device structures. The sensitivity of polymer-based field effect transistors to light also provides a convenient lateral geometry for efficient optical-coupling and control of the transistor state. The range of these polymer-detectors available with the option of operating in the diode and transistor modes should be an attractive feature for many potential applications.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 814: Symposium I – Flexible Electronics 2004-Materials and Device Technology , 2004 , I13.5
Copyright
Copyright © Materials Research Society 2004

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