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What does the text most strongly suggest about conventional ETL fabrication? In a paper about p-i-n planar perovskite solar cells (one of several perovskite cell architectures designed to collect and store solar power), Lyndsey McMillon-Brown et al. describe a method for fabricating the cell’s electronic transport layer (E TL) using a spray coating. Conventional ETL fabrication is accomplished using a solution of nanoparticles. The process can result in a loss of up to 80% of the solution, increasing the cost of manufacturing at scale—an issue that may be obvi ated by spray coating fabrication, which the researchers describe as 'highly reproducible, concise, and practical.'
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- 1It is somewhat imprecise and therefo re limits the potential effectiveness of p-i-n planar perovskite solar cells at capturing and storing solar power.
- 2It typically entails a greater lo ss of nanoparticle solution than do other established approaches for ETL fabrication.
- 3It is more expensive when manufacturing at scale than are processe s for fabricating ETLs used in other perovskite solar cell architectures.
- 4It is less suitable for manufacturing large volumes of planar p-i-n perovskite solar cells than an alternative fabrication method may be.✓
Correct answer
It is less suitable for manufacturing large volumes of planar p-i-n perovskite solar cells than an alternative fabrication method may be.
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