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Conference Paper: Breaking the Space Charge Limit in Organic Solar Cells by a Novel Plasmonic-Electrical Concept
Title | Breaking the Space Charge Limit in Organic Solar Cells by a Novel Plasmonic-Electrical Concept |
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Authors | |
Issue Date | 2014 |
Publisher | The Optical Society. |
Citation | OSA Incubator on the Fundamental Limits of Optical Energy Conversion, Washington, DC, USA, 12-14 November 2014 How to Cite? |
Abstract | As a fundamental electrostatic limit, the space charge limit (SCL) for photocurrent is a universal feature and of paramount importance in organic semiconductors with unbalanced electron/hole mobility and high exciton generation. Here, we propose a new concept of plasmonic-electrical effect to manipulate the electrical properties (photocarrier generation, recombination, transport, and collection) of semiconductor devices with the help of plasmonically induced light redistribution. As a proof-of-concept, organic solar cells (OSCs) incorporating metallic planar and grating anodes are systematically investigated for normal and inverted device structures.
Interestingly, although strong plasmonic resonances induce abnormally dense photocarriers around a grating anode, the grating-inverted OSC is exempt from space charge accumulation |
Description | Session 4: Alternative Materials & Concepts |
Persistent Identifier | http://hdl.handle.net/10722/239731 |
DC Field | Value | Language |
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dc.contributor.author | Choy, WCH | - |
dc.date.accessioned | 2017-03-31T10:57:19Z | - |
dc.date.available | 2017-03-31T10:57:19Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | OSA Incubator on the Fundamental Limits of Optical Energy Conversion, Washington, DC, USA, 12-14 November 2014 | - |
dc.identifier.uri | http://hdl.handle.net/10722/239731 | - |
dc.description | Session 4: Alternative Materials & Concepts | - |
dc.description.abstract | As a fundamental electrostatic limit, the space charge limit (SCL) for photocurrent is a universal feature and of paramount importance in organic semiconductors with unbalanced electron/hole mobility and high exciton generation. Here, we propose a new concept of plasmonic-electrical effect to manipulate the electrical properties (photocarrier generation, recombination, transport, and collection) of semiconductor devices with the help of plasmonically induced light redistribution. As a proof-of-concept, organic solar cells (OSCs) incorporating metallic planar and grating anodes are systematically investigated for normal and inverted device structures. Interestingly, although strong plasmonic resonances induce abnormally dense photocarriers around a grating anode, the grating-inverted OSC is exempt from space charge accumulation | - |
dc.language | eng | - |
dc.publisher | The Optical Society. | - |
dc.relation.ispartof | OSA Incubator on the Fundamental Limits of Optical Energy Conversion | - |
dc.title | Breaking the Space Charge Limit in Organic Solar Cells by a Novel Plasmonic-Electrical Concept | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Choy, WCH: chchoy@eee.hku.hk | - |
dc.identifier.authority | Choy, WCH=rp00218 | - |
dc.identifier.hkuros | 250917 | - |
dc.publisher.place | USA | - |