Stable organic solar cells based on non-fullerene acceptors

Harvesting solar energy from solar cells is a promising way to tackle today’s energy issues.

Solution-processed organic solar cells (OSCs), consisting of carbon-based electron donor and acceptor materials, have shown great potential for large-area and low-cost solar panels.

Recent advances in non-fullerene acceptors (NFAs) have successfully boosted the efficiencies of OSCs to high values over 18%.

The key challenge facing the development of OSCs is that their stability is lagging behind those based on inorganic semiconductors.This project aims to address this critical challenge, and bridge the knowledge gap on the stability of OCSs.

This project is made possible by our recent breakthroughs in high-efficiency OSCs and novel stability strategies on other photovoltaic technologies.

At the core of this project is rational materials development, coupled with device physics and device engineering investigations.

We will reveal the degradation mechanisms and develop OSCs with both high efficiency and long-term operational stability, by increasing the inherent photo-thermal stability of the photoactive layers and improving the interfacial stability.

This project will achieve a new paradigm for realizing long-term stability of OSCs, contributing to the energy transition, globally as well as locally in Sweden.