Novel low-energy gap conjugated polymers for photovoltaics and hydrogen generation

J. Morgado^a, M. Machado^a, R. Meira^a, L. Mendonça^a

^aInstituto Superior Técnico, Universidade de Lisboa, and Instituto de Telecomunicações, Avenida Rovisco Pais, Lisboa, Portugal

Proceedings of International Conference on Light Driven Water Splitting Using Semiconductor Based Devices (SolarFuel15)

Illetes, Spain, 2015 March 11th - 13th

Organizers: Leslie Frotscher, Sixto Gimenez Julia, Wolfram Jaegermann and Bernhard Kaiser

Poster, J. Morgado, 095
Publication date: 15th December 2014

Conjugated polymers have been explored as photoactive materials for organic and hybrid photovoltaics and are also being investigated for hydrogen photogeneration. A significant number of conjugated polymers has been prepared, aiming at improving the performance of both types of devices. Although a direct correlation between molecular structure and performance is not yet clear, it has been established that the control of their energy gap and of the energetic position of their frontier levels (HOMO and LUMO) is very important. In this communication we report on our recent work on the synthesis and characterization of such materials. Acknowledgments We acknowledge the financial support from EU under the project PHOCS (Grant agreement no: 309223) and FCT-Portugal under the contract UID/EEA/50008/2013.

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