Organic solar cells have achieved rapid development over the last few years, benefitting from the emerging of new non-fullerene acceptors (NFAs). The reported power conversion efficiency of OSCs has achieved over 18% up to now, however, the inferior stability issue restricts its commercialization, which stimulates the interest of scientists to explore it in-depth as well. Thus, we discuss the mechanisms of the instability in OSC devices, comprehensively summarize the progress of OSC stability in recent years and propose a series of solutions that improve the stability in this review. Although the highly-stable OSCs with extrapolated lifetime over several decades have been reported, the biggest drawback of them is the insufficient PCE. Thereby, investigating efficient OSCs with high-stability is required. We expect this review can provide some guidelines to address the instability of OSCs for feasible commercialization in the future.

得益于新型非富勒烯受体（NFA）的出现，有机太阳能电池在过去几年中实现了快速发展。迄今为止，据报道，OSC的功率转换效率已达到18％以上，但是，稳定性较差的问题限制了OSC的商业化，这也激发了科学家对其进行深入研究的兴趣。因此，我们讨论了OSC设备不稳定性的机制，全面总结了OSC稳定性的最新进展，并提出了一系列提高稳定性的解决方案。尽管已经报道了具有数十年使用寿命的高度稳定的OSC，但其最大的缺点是PCE不足。因此，需要研究具有高稳定性的有效OSC。