Effect of poly(thiophene)s topology on their third-order nonlinear optical response

Autor: Thierry Verbiest, Julien De Winter, Carmen Bartic, Stien Vertommen, Pascal Gerbaux, Guy Koeckelberghs, Olivier Deschaume
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: The research area of nonlinear topologies of conjugated polymers (CPs) became a topic of growing interest due to their unique optoelectronic properties compared to CPs with linear topologies. Nonetheless, the field of the third-order nonlinear optical response (TONO) is still largely unexplored, although, theoretically, nonlinear CPs should give a higher TONO response. Therefore, linear CPs and a trigonal nonlinear CP were synthesized via a combination of a controlled chain-growth polymerization, post-polymerization reactions and a click reaction. Afterward, the TONO response of the CPs was investigated with the highly sensitive third-harmonic scattering technique using solvatochromism experiments. In contrast to what was expected, trigonal nonlinear CPs do not possess a higher TONO response compared to their linear counterparts.
Databáze: OpenAIRE