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Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning
The fundamental limits of inorganic semiconductors for light emitting applications, such as holographic displays, biomedical imaging and ultrafast data processing and communication, might be overcome by hybridization with their organic counterparts, which feature enhanced frequency response and colo...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410639/ https://www.ncbi.nlm.nih.gov/pubmed/25872919 http://dx.doi.org/10.1038/ncomms7754 |
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author | Schlesinger, R. Bianchi, F. Blumstengel, S. Christodoulou, C. Ovsyannikov, R. Kobin, B. Moudgil, K. Barlow, S. Hecht, S. Marder, S.R. Henneberger, F. Koch, N. |
author_facet | Schlesinger, R. Bianchi, F. Blumstengel, S. Christodoulou, C. Ovsyannikov, R. Kobin, B. Moudgil, K. Barlow, S. Hecht, S. Marder, S.R. Henneberger, F. Koch, N. |
author_sort | Schlesinger, R. |
collection | PubMed |
description | The fundamental limits of inorganic semiconductors for light emitting applications, such as holographic displays, biomedical imaging and ultrafast data processing and communication, might be overcome by hybridization with their organic counterparts, which feature enhanced frequency response and colour range. Innovative hybrid inorganic/organic structures exploit efficient electrical injection and high excitation density of inorganic semiconductors and subsequent energy transfer to the organic semiconductor, provided that the radiative emission yield is high. An inherent obstacle to that end is the unfavourable energy level offset at hybrid inorganic/organic structures, which rather facilitates charge transfer that quenches light emission. Here, we introduce a technologically relevant method to optimize the hybrid structure's energy levels, here comprising ZnO and a tailored ladder-type oligophenylene. The ZnO work function is substantially lowered with an organometallic donor monolayer, aligning the frontier levels of the inorganic and organic semiconductors. This increases the hybrid structure's radiative emission yield sevenfold, validating the relevance of our approach. |
format | Online Article Text |
id | pubmed-4410639 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44106392015-05-08 Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning Schlesinger, R. Bianchi, F. Blumstengel, S. Christodoulou, C. Ovsyannikov, R. Kobin, B. Moudgil, K. Barlow, S. Hecht, S. Marder, S.R. Henneberger, F. Koch, N. Nat Commun Article The fundamental limits of inorganic semiconductors for light emitting applications, such as holographic displays, biomedical imaging and ultrafast data processing and communication, might be overcome by hybridization with their organic counterparts, which feature enhanced frequency response and colour range. Innovative hybrid inorganic/organic structures exploit efficient electrical injection and high excitation density of inorganic semiconductors and subsequent energy transfer to the organic semiconductor, provided that the radiative emission yield is high. An inherent obstacle to that end is the unfavourable energy level offset at hybrid inorganic/organic structures, which rather facilitates charge transfer that quenches light emission. Here, we introduce a technologically relevant method to optimize the hybrid structure's energy levels, here comprising ZnO and a tailored ladder-type oligophenylene. The ZnO work function is substantially lowered with an organometallic donor monolayer, aligning the frontier levels of the inorganic and organic semiconductors. This increases the hybrid structure's radiative emission yield sevenfold, validating the relevance of our approach. Nature Pub. Group 2015-04-15 /pmc/articles/PMC4410639/ /pubmed/25872919 http://dx.doi.org/10.1038/ncomms7754 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Schlesinger, R. Bianchi, F. Blumstengel, S. Christodoulou, C. Ovsyannikov, R. Kobin, B. Moudgil, K. Barlow, S. Hecht, S. Marder, S.R. Henneberger, F. Koch, N. Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title | Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title_full | Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title_fullStr | Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title_full_unstemmed | Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title_short | Efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
title_sort | efficient light emission from inorganic and organic semiconductor hybrid structures by energy-level tuning |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410639/ https://www.ncbi.nlm.nih.gov/pubmed/25872919 http://dx.doi.org/10.1038/ncomms7754 |
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