Doping-Induced Polaron Formation and Solid-State Polymerization in Benzoporphyrin–Oligothiophene Conjugated Systems
| Autor: | Dietrich R. T. Zahn, Niyazi Serdar Sariciftci, Georgeta Salvan, Dmytro Solonenko, Dogukan Hazar Apaydin, Patchanita Thamyongkit, Martin Nuss, Kurt Hingerl, Wittawat Keawsongsaeng, Kerstin Oppelt, Jacek Gasiorowski |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Doping Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Polaron Photochemistry 01 natural sciences Polymer solar cell 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Organic semiconductor Condensed Matter::Materials Science symbols.namesake General Energy Polymerization Attenuated total reflection symbols Physical and Theoretical Chemistry Fourier transform infrared spectroscopy 0210 nano-technology Raman spectroscopy |
| Zdroj: | The Journal of Physical Chemistry C. 121:24397-24407 |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | Benzoporphyrins and their derivatives are of high interest in organic semiconductor technology due to their peculiar physical properties valuable for optoelectronic applications. Following our previous work successfully developing meso-thienyl- or meso-bithiophenyl-substituted zinc benzoporphyrins as efficient ternary components for bulk heterojunction solar cells, we describe herein detailed spectroscopic studies on doping of solid films of these benzoporphyrins under iodine atmosphere. Solid-state doping and oxidative polymerization are investigated by Raman and Fourier transform infrared spectroscopy. Structural and vibrational changes upon doping are explored with supporting data from density functional theory calculations. Furthermore, the optical and spectroscopic characteristics of the films of these materials are also monitored during the doping, and the polaron formation as evidenced by in situ attenuated total reflection Fourier transform infrared and UV–vis spectroscopy is observed. These resul... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|