Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV18)
Publication date: 21st February 2018
In this work, we report on the design, synthesis and complex study of new family of triphenylamine-based star-shaped and unsymmetrical molecules having phenyl substituent at dicyanovinyl (DCV) group [1,2] as well as on the comparison of their properties and photovoltaic performance to those of full analogs with pristine DCV or alkyl-modified DCV groups.[3-8]
The modification of DCV unit brings many positive changes to the physical properties of the molecules, including significant increase of thermal stability, electrochemical stability, solubility in organic solvents and longer exciton diffusion length and better photovoltaic properties as compared to the analogs.
This work in the part of synthesis and characterization of linear molecules was supported by Russian Science Foundation (RSF) (17-73-10485), whereas in the part of star-shaped oligomers by RSF (14-13-01380). Photostabilty was estimated in the framework the Program of President of Russian Federation (МК-933.2017.3). The work was performed in the framework of leading science school NSh-5698.2018.3.
References
1. Y.N. Luponosov, et al., Org. Electronics, 2017, 51, 180.
2. O.V. Kozlov, Y.N. Luponosov, et al., Org. Electronics, 2018, 53, 185.
3. Y.N. Luponosov et. al. J. Mater. Chem. C 2016, 4, 7061.
4. Y.N. Luponosov, et al. Org. Electronics 2016, 32, 157.
5. O.V. Kozlov, Y.N. Luponosov, et. al., Adv. Energy Mater., 2015, 5, 1401657.
6. J. Min et. al., Adv. Funct. Mater., 2016, 26, 4543.
7. J. Min, Y.N. Luponosov et al., Adv. Energy Mater. 2017, 1700465.
8. O.V. Kozlov, Y.N. Luponosov, et al., Adv. Optical Mater. 2017, 1700024.
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