Recent Breakthroughs in Organic Photovoltaics
Iain McCulloch a
a Imperial College London, United Kingdom, South Kensington, Londres, Reino Unido, United Kingdom
nanoGe Fall Meeting
Proceedings of Materials for Sustainable Development Conference (MAT-SUS) (NFM22)
#BRIGHT - Recent Breakthroughs in Organic Photovoltaics
Barcelona, Spain, 2022 October 24th - 28th
Invited Speaker, Iain McCulloch, presentation 257
Publication date: 11th July 2022

“Organics strike back”: After a long halt between 2012 and 2015 on efficiencies around 12%, organic solar cells (OSC) have now transitioned to a stage where efficiencies over 18% are being regularly reported. The emergence of a family of materials - the non-fullerene acceptors (NFAs) with small energetic offsets with specific electron donors - is mainly responsible for the remarkable improvement. With the significant milestone of 20% now in sight and an optimistic value of 25% predicted, understanding interlayer, morphology, charge dynamics and the current barriers in these systems is now of great importance.

This symposium endeavours to gather leading experts from around the world aiming at critical discussions on hot topics related organic solar cells, in particular those based on NFAs.

Progress in efficiency

Voltage loss mechanisms in NFA solar cells

New thermodynamic efficiency limits

Interplay between excitons, CT states and free charges in the low offset systems.

Charge generation in non-fullerene solar cells

 

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