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Biomimetic Chemistry Lab
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The lab has examined, from the surface side, perovskite solar cells with fewer layers.
AboutAbout the lab
Removing layers for cheaper, more durable solar cells.
The Biomimetic Chemistry Lab studied solar cells made with a material called perovskite.
Most perovskite solar cells have a multilayer structure that includes a charge transport layer made of relatively expensive materials.
The lab studied a structure in which the perovskite layer is anchored to the electrode surface by the molecular chains of a self-assembled monolayer, eliminating the charge transport layer, which promises low cost and good durability.
Lecturer Sakomura's fields of expertise are physical chemistry and surface science.
Key terms
- Perovskite solar cell
- A solar cell that uses perovskite as its photoactive layer. It has reached the stage of practical application, and improving durability is considered the biggest challenge
- Charge transport layer
- A layer included in the stacked structure of a perovskite solar cell. It is often made of relatively expensive materials
- Kelvin probe method
- The lab used this method to observe the surface Fermi level of the perovskite layer, and investigated the electric field near the interface, which is difficult to observe directly
ResearchResearch themes
Perovskite solar cells have reached the stage of practical application, but because of their structure of many stacked functional layers, degradation is said to occur easily at the interfaces between layers. The lab studied devices with a simple structure that omits the layer in contact with the electrode, combining low cost with durability.
View More ↗MembersFaculty
- LecturerMasaru Sakomura
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Perovskite solar cell” Dennis Schroeder / National Renewable Energy Laboratory / Public domain (cropped)
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