Mechanochemical synthesis of diimide based electron acceptors for organic photovoltaics applications

Emerit, Hugo (2022) Mechanochemical synthesis of diimide based electron acceptors for organic photovoltaics applications. Masters thesis (MPhil), University of Sussex.

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Abstract

It has been predicted that solar energy will play a key role in solving the serious environmental problems that face our planet. The pursuit of clean, renewable, cost-effective, and high-performance organic photovoltaic (OPV) technologies has attracted considerable efforts from both academia and industry. Some of the most promising materials for OPVs are those based on systems such as naphthalene diimide (NDI), or perylene diimide (PDI). These structures are known to be excellent electron acceptor species for organic electronic applications because of their strong light absorption and chemical stability. However, the efficient synthesis of these compounds is hindered by poor yields and the need for harsh solvent-based conditions, especially for their brominated derivatives. This report details our efforts towards synthesising these high value compounds in a more environmentally friendly way using solvent free mechanochemistry in a ball mill. With these molecules synthesised, our long-term goal is to study their solid-state polymerisation resulting in an environmentally benign synthesis of materials suitable for the next generation of organic solar cells.

Item Type: Thesis (Masters)
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science > QD Chemistry > QD0450 Physical and theoretical chemistry > QD0701 Photochemistry
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power > TK1085 Production from solar energy > TK1087 Photovoltaic power generation. Photovoltaic power systems including integrated building-integrated photovoltaic systems
Depositing User: Library Cataloguing
Date Deposited: 20 Jun 2022 12:33
Last Modified: 20 Jun 2022 12:33
URI: http://sro.sussex.ac.uk/id/eprint/106542

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