Rapid prototyping of heterostructured organic microelectronics using wax printing, filtration, and transfer.
Liangqi OuyangSebastian BuchmannTobias BenselfeltChiara MusumeciZhen WangShirin KhaliliazarWeiqian TianHailong LiAnna HerlandMahiar Max HamediPublished in: Journal of materials chemistry. C (2021)
Conducting polymers are the natural choice for soft electronics. However, the main challenge is to pattern conducting polymers using a simple and rapid method to manufacture advanced devices. Filtration of conducting particle dispersions using a patterned membrane is a promising method. Here, we show the rapid prototyping of various micropatterned organic electronic heterostructures of PEDOT:PSS by inducing the formation of microscopic hydrogels, which are then filtered through membranes containing printed hydrophobic wax micropatterns. The hydrogels are retained on the un-patterned, hydrophilic regions, forming micropatterns, achieving a resolution reaching 100 μm. We further solve the problem of forming stacked devices by transferring the acidified PEDOT:PSS micropattern using the adhesive tape transfer method to form vertical heterostructures with other micropatterned electronic colloids such as CNTs, which are patterned using a similar technique. We demonstrate a number of different heterostructure devices including micro supercapacitors and organic electrochemical transistors and also demonstrate the use of acidified PEDOT:PSS microstructures in cell cultures to enable bioelectronics.
Keyphrases
- drug delivery
- loop mediated isothermal amplification
- single cell
- room temperature
- water soluble
- ionic liquid
- hyaluronic acid
- perovskite solar cells
- gold nanoparticles
- extracellular matrix
- magnetic resonance imaging
- tissue engineering
- drug release
- wound healing
- magnetic resonance
- cell therapy
- mass spectrometry
- low cost