Abstract
The 9-heptyl-3,6-di(thiophen-2-yl)-9H-carbazole (BTC-C7) monomer shows unusual electronic properties during electropolymerization process, we describe the possibility of electrosynthesis of oligomers of different chain length. What is extraordinary about these systems is that their band-gap size is the same, irrespective of the number of repeat units in the oligomer. We compared band-gap width for different oligomers using absorption spectroscopy, cyclic voltammperometry. Analysis of this data suggests that the observed constant band-gap width feature is due to simultaneous, and equipollent change of the energy of HOMO and LUMO orbitals across the series of oligomers being considered.
| Original language | English |
|---|---|
| Pages (from-to) | 1445-1448 |
| Number of pages | 4 |
| Journal | Optical Materials |
| Volume | 33 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Jul 2011 |
Keywords
- Band-gap
- Carbazole
- Conjugated polymers
- Thiophene
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Computer Science
- Atomic and Molecular Physics, and Optics
- Spectroscopy
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Electrical and Electronic Engineering
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