Transport layer-free perovskite solar cells

Are low-cost hole transport layer-free carbon-based perovskite solar cells efficient?

Low-cost hole transport layer (HTL)-free carbon-based perovskite solar cells (C-PSCs) have drawn considerable interest owing to their simple manufacturing process and excellent stability. However, the insufficient interfacial charge transport severely limits the efficiency of HTL-free C-PSCs.

How efficient are planar carbon-based perovskite solar cells without a hole transport layer?

Finally, an efficiency of 19.89% is achieved for the planar carbon-based perovskite solar cells without a hole transport layer. Article subjects are automatically applied from the ACS Subject Taxonomy and describe the scientific concepts and themes of the article.

Should perovskite solar cells be commercialized?

In the past ten years, perovskite solar cells (PSCs) have achieved tremendous success, with the efficiency rivalling that of conventional silicon-based devices. To promote commercialization, lowering the production cost and reducing the complexity of the process would make the devices more competitive and thus are highly required.

What is a perovskite solar cell?

Perovskite solar cells have made significant progress in the development process in the last decade or so. Lead-based perovskite () solar cells (MA is organic methylammonium cation ( )) were firstly proposed in 2009 with a PCE of 3.8%, and in the last two years have reached 25.5%, and they are still under continuous development.

Are carbon-based perovskite solar cells a good choice?

The planar triple-layer hole transport layer (HTL)-free carbon-based perovskite solar cells (C-PSCs) have outstanding advantages of low cost and high stability, but are limited by low efficiency. The formation of a 3D/2D heterojunction has been widely proven to enhance device performance.

What is the difference between perovskite and inorganic solar cells?

In contrast, the exciton in the perovskite material is Wannier-type with a binding energy of about 50 meV , , thus the photo-excited carriers can be dealt with the same manner with inorganic, which enables us to apply an existed device simulator widely used in inorganic solar cells to the PSCs.