New concept to break the intrinsic properties of organic semiconductors for optical sensing applications

Wallace C. H. Choy

doi:10.1117/12.2187190

1 September 2015 New concept to break the intrinsic properties of organic semiconductors for optical sensing applications

Wallace C. H. Choy

Author Affiliations +

Proceedings Volume 9608, Infrared Remote Sensing and Instrumentation XXIII; 96081A (2015) https://doi.org/10.1117/12.2187190
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

As the intrinsic electrostatic limit, space charge limit (SCL) for photocurrent is a universal phenomenon which is fundamental important for organic semiconductors. We will demonstrate SCL breaking by a new plasmonic-electrical concept. As a proof-ofconcept, organic solar cells (OSCs) comprising metallic planar and grating electrodes are studied. Interestingly, although strong plasmonic resonances induce abnormally dense photocarriers around a grating anode, the grating incorporated inverted OSC is exempt from space charge accumulation (limit) and degradation of electrical properties. The plasmonic-electrical concept will open up a new way to manipulate both optical and electrical properties of semiconductor devices simultaneously.

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Wallace C. H. Choy "New concept to break the intrinsic properties of organic semiconductors for optical sensing applications", Proc. SPIE 9608, Infrared Remote Sensing and Instrumentation XXIII, 96081A (1 September 2015); https://doi.org/10.1117/12.2187190

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