Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)
DOI: https://doi.org/10.29363/nanoge.hopv.2024.080
Publication date: 6th February 2024
Nowadays renewable energy technologies attracted a lot of attention due to the limitation of fossil fuel. One of the best renewable energy harvesting devices is organic solar cells (OSCs) as bulk heterojunction. The active layer is composed of a blend of donor usually a low bandgap conjugated polymer and acceptor like fullerene (PC71PM) or non-fullerene (Y6). Tremendous efforts have been devoted to increase the power conversion efficiencies (PCE) over 20%[1]. Recently metallooligomers containing Pt(II) metal based on DPP (diketopyrrolopyrrole) are well used, since they display additional optical and opto-electronic features that leads to ultrafast photoinduced electron transfer and the increase of excitons population[2].
The optoelectronic properties of metallooligomers containing OSCs can be enhanced by tuning the structure of DPP to enhance electronic transfer between donor and acceptor and improving π-π inter-chain aggregation by self-assembly to favor charge carrier’s mobility. To enhance the optoelectronic properties and solar cell performances (PCE>15%), my project consists in enhancing the optoelectronic properties and solar cell performances by ① functionalization of the side chains from DPP core with an organizing group as triphenylene[3] with distinct spacers (length, aliphatic, axially conjugated heterocycle) (T) to improve molecular organization , ② the increase of the conjugated backbone planarity to decrease the bandgap (Eg)[4] and finally ③ preparing a new donor whose the molecular design combines the advantages of the two first strategies.
I would like to express my sincere gratitude to my thesis director, Dr. Cyprien LEMOUCHI, and co-director, Prof. Loïc LE PLUART, for their steadfast support, priceless advice, and thought-provoking conversations during this academic journey. Furthermore, I would like to thank Professor Pierre Harvey of the Chemistry Department at Université de Sherbrooke in Sherbrooke, PQ J1K 2R1, Canada, for his collaboration and his knowledge in the field of photophysical property research. I am also appreciative of Professor Ganesh Sharma's assistance in assessing the effectiveness of solar cell research at the LNM Institute of Information Technology (Deemed University), Jaipur 302031, India.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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