The effect of intermolecular interaction on excited states in p − DTS(FBTTH2)2
Abstract
Using optical spectroscopy in solution and thin film, and supported by quantum chemical calculations, we investigated the aggregation process of the donor-acceptor type molecule p − DTS(FBTTH2)2. We demonstrate that cooling a solution induces a disorder-order phase transition that proceeds in three stages analogous to the steps observed in semi-rigid conjugated polymers. By analyzing the spectra, we are able to identify the spectral signature of monomer and aggregate in absorption and emission. From this we find that in films, the fraction of aggregates is near 100% which is in contrast to films made from semi-rigid conjugated polymers.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 18, 2016
- Source ID
- 10.1063/1.4941700
Entities
People
- Alexander Rudnick
- Anna Köhler
- Anna Stradomska
- Fabian Panzer
- Guillermo C. Bazan
- John A. Love
- Markus Reichenberger
- Sergey Bagnich
- Thuc-Quyen Nguyen
Organizations
- Bavarian Ministry of Culture
- Federal Ministry of Research, Technology and Space
- German Research Foundation
- Office of Naval Research
- The Camille and Henry Dreyfus Foundation
- University of Bayreuth
- University of California
- University of Glasgow