A holistic approach to interface stabilization for efficient perovskite solar modules with over 2,000-hour operational stability
By Zonghao Liu, Longbin Qiu, L. Ono, Sisi He, Zhanhao Hu, Maowei Jiang, Guoqing Tong, Zhifang Wu, Yan Jiang, Dae-Yong Son and 3 more. Nature Energy, 2020
299 citations recorded by the source corpus.
The upscaling of perovskite solar cells to module scale and long-term stability have been recognized as the most important challenges for the commercialization of this emerging photovoltaic technology. In a perovskite solar module, each interface within the device contributes to the efficiency and stability of the module. Here, we employed a holistic interface stabilization strategy by modifying all the relevant layers and interfaces, namely the perovskite layer, charge transporting layers and device encapsulation, to improve the efficiency and stability of perovskite solar modules. The treatments were selected for their compatibility with low-temperature scalable processing and the module scribing steps. Our unencapsulated perovskite solar modules achieved a reverse-scan efficiency of 16.6% for a designated area of 22.4 cm2. The encapsulated perovskite solar modules, which show efficiencies similar to the unencapsulated one, retained approximately 86% of the initial performance after continuous operation for 2,000 h under AM1.5G light illumination, which translates into a T90 lifetime (the time over which the device efficiency reduces to 90% of its initial value) of 1,570 h and an estimated T80 lifetime (the time over which the device efficiency reduces to 80% of its initial value) of 2,680 h. The upscaling of layer treatments and processing that afford high efficiency and stability in small-area perovskite solar cells remains challenging. Liu et al. show how the efficiency and stability of perovskite modules can be improved using an integrated approach to interface and layer engineering.
Subfields: Electrical and Electronic Engineering, Materials Chemistry, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/66e155edfda2969848a37c4c9ceb42ef08f2a0b1
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Citations in the corpus
- Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells (2021, background): “This response has been observed before and is attributed to the charge accumulation at the interface with Spiro-OMeTAD.(36,50) Interestingly, our results demonstrate that the addition of H3pp can be extended to different HP absorbers Figure 2.”