Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors
Abstract
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.
- Authors:
-
- Linköping Univ., Norrköping (Sweden); Paris Univ., Cergy (France)
- Linköping Univ., Norrköping (Sweden)
- Chalmers Univ. of Technology, Goteborg (Sweden)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1768776
- Grant/Contract Number:
- AC02-76SF00515; 2016-03979; SFO-Mat-LiU No 2009 00971; Dnr KAW 2014.0041; 18-313; 19-310; 204-0256
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Materials and Interfaces
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: 47; Journal ID: ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; conjugated polymers; sequential doping; n-doping; organic thermoelectrics; ladder-type polymers; thermal stability; impurities; thin films; electrical conductivity; doping; annealing (metallurgy)
Citation Formats
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, and Fabiano, Simone. Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors. United States: N. p., 2020.
Web. doi:10.1021/acsami.0c16254.
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. United States. https://doi.org/10.1021/acsami.0c16254
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, and Fabiano, Simone. Thu .
"Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors". United States. https://doi.org/10.1021/acsami.0c16254. https://www.osti.gov/servlets/purl/1768776.
@article{osti_1768776,
title = {Sequential Doping of Ladder-Type Conjugated Polymers for Thermally Stable n-Type Organic Conductors},
author = {Wang, Suhao and Ruoko, Tero-Petri and Wang, Gang and Riera-Galindo, Sergi and Hultmark, Sandra and Puttisong, Yuttapoom and Moro, Fabrizio and Yan, Hongping and Chen, Weimin M. and Berggren, Magnus and Müller, Christian and Fabiano, Simone},
abstractNote = {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.},
doi = {10.1021/acsami.0c16254},
journal = {ACS Applied Materials and Interfaces},
number = 47,
volume = 12,
place = {United States},
year = {Thu Nov 12 00:00:00 EST 2020},
month = {Thu Nov 12 00:00:00 EST 2020}
}
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