Electron-Deficient Fluorous Porphyrins and Their Use in Organic Solar Cells


Fluorinated aromatics and related materials offer many advantages over non-fluorinated materials in a variety of different optoelectronic devices such as, but not limited to, organic light emitting diodes (OLEDs), organic field-effect transistors (OFETs), organic solar cells (OSCs), and dye-sensitized solar cells (DSSCs). These fluorinated materials have processing advantages and are thermally and photochemically stable; they have reduced flammability, tolerance to extreme environmental conditions, and advantages in tuning the electronic and optical properties of these devices. For example, these materials can be used to produce air-stable n-type semiconductors.


Solution processability of organic semiconductor materials is key to lowering the cost of large scale production of different optoelectronic devices such as OSCs, OFETs, and OLEDs; it is one of the bottlenecks that limit the widespread application of these devices. Orthogonal processing would be ideal for organic semiconductor thin film device production.


Organic solar cells generally have an active layer including an electron donor molecule and an electron acceptor molecule. Fullerene-based molecules are commonly used as electron acceptors. However, these materials are expensive, have weak solar absorption, and poor solution processability. A molecule with dual functions of light harvesting and electron accepting or donating is ideal for organic solar cell application. Electron-deficient fluorous porphyrins have both of these capabilities.



Patent Information:
For Information, Contact:
Rozzy Finn
Technology Transfer Officer
University of South Dakota
Haoran Sun
Fluorinated Materials
Optical Communication