"Red Carbon" A Rediscovered Covalent Crystalline Semiconductor

"Red Carbon" : A Rediscovered Covalent Crystalline Semiconductor

© 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 40 vom: 02. Okt., Seite e2206405
1. Verfasser: Odziomek, Mateusz (VerfasserIn)
Weitere Verfasser: Giusto, Paolo, Kossmann, Janina, Tarakina, Nadezda V, Heske, Julian, Rivadeneira, Salvador M, Keil, Waldemar, Schmidt, Claudia, Mazzanti, Stefano, Savateev, Oleksandr, Perdigón-Toro, Lorena, Neher, Dieter, Kühne, Thomas D, Antonietti, Markus, López-Salas, Nieves
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article carbon suboxide carbonaceous materials conjugated ladder polymers covalent materials photocatalysts
Beschreibung
Zusammenfassung:© 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.
Carbon suboxide (C3 O2 ) 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, the aim is 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 one 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 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 can be inspiring for the synthesis of carbonaceous materials at low temperatures in general
Beschreibung:Date Revised 06.10.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202206405