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  “Red carbon” : a rediscovered covalent crystalline semiconductor

Odziomek, M., Giusto, P., Kossmann, J., Tarakina, N. V., Heske, J., Rivadeneira, S. M., et al. (2022). “Red carbon”: a rediscovered covalent crystalline semiconductor. Advanced Materials, 34(40): 2206405. doi:10.1002/adma.202206405.

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 Creators:
Odziomek, Mateusz1, Author           
Giusto, Paolo2, Author                 
Kossmann, Janina1, Author           
Tarakina, Nadezda V.3, Author           
Heske, Julian4, Author                 
Rivadeneira, Salvador M., Author
Keil, Waldemar, Author
Schmidt, Claudia, Author
Mazzanti, Stefano5, Author           
Savateev, Aleksandr5, Author           
Perdigón-Toro, Lorena, Author
Neher, Dieter, Author
Kühne, Thomas D., Author
Antonietti, Markus4, Author           
Lopez Salas, Nieves1, Author           
Affiliations:
1Nieves Lopez Salas, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3029702              
2Paolo Giusto, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_3245192              
3Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2522693              
4Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              
5Aleksandr Savateev, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2421702              

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Free keywords: carbon suboxide; carbonaceous materials; conjugated ladder polymers; covalent materials; photocatalysts
 Abstract: Carbon suboxide (C3O2) is a unique molecule able to polymerize spontaneously into highly conjugated light-absorbing structures at temperatures as low as 0 °C. Despite obvious advantages, little is known about the nature and the functional properties of this carbonaceous material. In this work, we aim to bring “red carbon”, a forgotten polymeric semiconductor, back to the community's attention. A solution polymerization process is adapted to simplify the synthesis and control the structure. This allows us to obtain this crystalline covalent material at low temperatures. Both spectroscopic and elemental analyses support the chemical structure represented as conjugated ladder polypyrone ribbons. Density functional theory (DFT) calculations suggest a crystalline structure of AB stacks of polypyrone ribbons and identify the material as a direct bandgap semiconductor with a medium bandgap that is further confirmed by optical analysis. The material shows promising photocatalytic performance using blue light. Moreover, the simple condensation-aromatization route described here allows the straightforward fabrication of conjugated ladder polymers and could be inspiring for the synthesis of carbonaceous materials at low temperatures in general.

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Language(s): eng - English
 Dates: 2022-08-172022
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
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 Identifiers: DOI: 10.1002/adma.202206405
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Title: Advanced Materials
  Other : Adv. Mater.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 34 (40) Sequence Number: 2206405 Start / End Page: - Identifier: ISSN: 0935-9648