Very Low Band Gap Thiadiazoloquinoxaline Donor–Acceptor Polymers as Multi-tool Conjugated Polymers
| Autor: | Patrik Henriksson, Alberto Salleo, Timothy T. Steckler, Sonya Mollinger, Mats Andersson, Angelica Lundin |
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| Přispěvatelé: | Steckler, Timothy T, Henriksson, Patrik, Mollinger, Sonya, Lundin, Angelica, Salleo, Alberto, Andersson, Mats R |
| Rok vydání: | 2014 |
| Předmět: |
azo compounds
Polymers Band gap molecular structure Conjugated system Photochemistry Biochemistry Oligomer Catalysis Switching time chemistry.chemical_compound Colloid and Surface Chemistry Quinoxalines polymers chemistry.chemical_classification Molecular Structure Ambipolar diffusion business.industry General Chemistry Polymer quantum theory Acceptor chemistry Electrochromism Quantum Theory Optoelectronics quinoxalines business Azo Compounds |
| Zdroj: | Journal of the American Chemical Society. 136:1190-1193 |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/ja410527n |
| Popis: | Here we report on the synthesis of two novel very low band gap (VLG) donor–acceptor polymers (Eg ≤ 1 eV) and an oligomer based on the thiadiazoloquinoxaline acceptor. Both polymers demonstrate decent ambipolar mobilities, with P1 showing the best performance of ∼10–2 cm2 V–1 s–1 for p- and n-type operation. These polymers are among the lowest band gap polymers (≲0.7 eV) reported, with a neutral λmax = 1476 nm (P2), which is the farthest red-shifted λmax reported to date for a soluble processable polymer. Very little has been done to characterize the electrochromic aspects of VLG polymers; interestingly, these polymers actually show a bleaching of their neutral absorptions in the near-infrared region and have an electrochromic contrast up to 30% at a switching speed of 3 s. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
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