The new method can facilitate future industrial production and enhance confidence in the commercialization of perovskite solar cells.
Researchers have developed a new fabrication technique for substantially enhancing the prospects of commercializing perovskite solar cells .
Using the technique, the CityUHK team has built a simple device structure that can facilitate future industrial production and enhance confidence in the commercialization of perovskite solar cells.They improved the long-term stability of perovskite solar cells with an atomic-layer deposition method. The layer replaces the fullerene electron transport layer with tin oxide.
The first innovation is the integration of the hole-selective materials and the perovskite layers, which simplifies the manufacturing process. The second is that the operational stability of theis greatly enhanced by using the inorganic electron transport layer, tin oxide, which has excellent thermal stability, to replace traditional organic materials such as fullerene and BCP, according to
This solution does not require a traditional organic transfer layer, effectively reducing the material cost in the manufacturing process while greatly simplifying the production steps, according to Dr Gao.that the team has achieved power conversion efficiencies exceeding 25% by optimising oxygen vacancy defects within the tin oxide layer while retaining over 95% efficiency after 2,000 hours of continuous operation under rigorous test conditions.
Perovskite Perovskite Solar Cells PV Cells
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