Efficient and stable organic solar cells based on all-solution-processed metal oxide transport layers
JOURNAL OF MATERIALS CHEMISTRY A(2023)
摘要
Charge extraction from the active layers to the corresponding electrodes is one of the key processes of organic solar cells (OSCs). Herein, we developed a mild n-doping strategy for metal oxides via electron transfer from Lewis base anions, simultaneously boosting the electric and electronic properties of the solution-processed molybdenum oxide (MoOx) hole transport layers (HTLs) to enable efficient OSCs with stable interlayers. High-performance OSCs have been obtained with similar to 19% PCEs, representing one of the best-performing conventional OSCs consisting of all-solution-processed metal oxide transport layers. Such doped MoOx exhibited not only excellent thickness-insensitive features (up to 150 nm) but also excellent stability. Overall, this study provides an effective strategy to develop high-performance yet cost-effective organic optoelectronics. Doping of solution-processed molybdenum oxide hole transport layers enabled the efficient and stable organic solar cells.
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