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Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors

[Image: see text] Doping of organic semiconductors is a powerful tool to optimize the performance of various organic (opto)electronic and bioelectronic devices. Despite recent advances, the low thermal stability of the electronic properties of doped polymers still represents a significant obstacle t...

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Autores principales: Wang, Suhao, Ruoko, Tero-Petri, Wang, Gang, Riera-Galindo, Sergi, Hultmark, Sandra, Puttisong, Yuttapoom, Moro, Fabrizio, Yan, Hongping, Chen, Weimin M., Berggren, Magnus, Müller, Christian, Fabiano, Simone
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735673/
https://www.ncbi.nlm.nih.gov/pubmed/33179508
http://dx.doi.org/10.1021/acsami.0c16254
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author Wang, Suhao
Ruoko, Tero-Petri
Wang, Gang
Riera-Galindo, Sergi
Hultmark, Sandra
Puttisong, Yuttapoom
Moro, Fabrizio
Yan, Hongping
Chen, Weimin M.
Berggren, Magnus
Müller, Christian
Fabiano, Simone
author_facet Wang, Suhao
Ruoko, Tero-Petri
Wang, Gang
Riera-Galindo, Sergi
Hultmark, Sandra
Puttisong, Yuttapoom
Moro, Fabrizio
Yan, Hongping
Chen, Weimin M.
Berggren, Magnus
Müller, Christian
Fabiano, Simone
author_sort Wang, Suhao
collection PubMed
description [Image: see text] Doping of organic semiconductors is a powerful tool to optimize the performance of various organic (opto)electronic and bioelectronic devices. Despite recent advances, the low thermal stability of the electronic properties of doped polymers still represents a significant obstacle to implementing these materials into practical applications. Hence, the development of conducting doped polymers with excellent long-term stability at elevated temperatures is highly desirable. Here, we report on the sequential doping of the ladder-type polymer poly(benzimidazobenzophenanthroline) (BBL) with a benzimidazole-based dopant (i.e., N-DMBI). By combining electrical, UV–vis/infrared, X-ray diffraction, and electron paramagnetic resonance measurements, we quantitatively characterized the conductivity, Seebeck coefficient, spin density, and microstructure of the sequentially doped polymer films as a function of the thermal annealing temperature. Importantly, we observed that the electrical conductivity of N-DMBI-doped BBL remains unchanged even after 20 h of heating at 190 °C. This finding is remarkable and of particular interest for organic thermoelectrics.
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spelling pubmed-77356732020-12-15 Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors Wang, Suhao Ruoko, Tero-Petri Wang, Gang Riera-Galindo, Sergi Hultmark, Sandra Puttisong, Yuttapoom Moro, Fabrizio Yan, Hongping Chen, Weimin M. Berggren, Magnus Müller, Christian Fabiano, Simone ACS Appl Mater Interfaces [Image: see text] Doping of organic semiconductors is a powerful tool to optimize the performance of various organic (opto)electronic and bioelectronic devices. Despite recent advances, the low thermal stability of the electronic properties of doped polymers still represents a significant obstacle to implementing these materials into practical applications. Hence, the development of conducting doped polymers with excellent long-term stability at elevated temperatures is highly desirable. Here, we report on the sequential doping of the ladder-type polymer poly(benzimidazobenzophenanthroline) (BBL) with a benzimidazole-based dopant (i.e., N-DMBI). By combining electrical, UV–vis/infrared, X-ray diffraction, and electron paramagnetic resonance measurements, we quantitatively characterized the conductivity, Seebeck coefficient, spin density, and microstructure of the sequentially doped polymer films as a function of the thermal annealing temperature. Importantly, we observed that the electrical conductivity of N-DMBI-doped BBL remains unchanged even after 20 h of heating at 190 °C. This finding is remarkable and of particular interest for organic thermoelectrics. American Chemical Society 2020-11-12 2020-11-25 /pmc/articles/PMC7735673/ /pubmed/33179508 http://dx.doi.org/10.1021/acsami.0c16254 Text en © 2020 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Wang, Suhao
Ruoko, Tero-Petri
Wang, Gang
Riera-Galindo, Sergi
Hultmark, Sandra
Puttisong, Yuttapoom
Moro, Fabrizio
Yan, Hongping
Chen, Weimin M.
Berggren, Magnus
Müller, Christian
Fabiano, Simone
Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title_full Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title_fullStr Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title_full_unstemmed Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title_short Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
title_sort sequential doping of ladder-type conjugated polymers for thermally stable n-type organic conductors
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735673/
https://www.ncbi.nlm.nih.gov/pubmed/33179508
http://dx.doi.org/10.1021/acsami.0c16254
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