In order to fabricate the thin-film components, Munzenrieder, together with
In subsequent steps, the researchers used standardised methods to build transistors and sensors from semiconductor materials, such as indium gallium zinc oxide, and conductors, such as gold and then released the parylene film with its attached electronic components from the wafer.
An electronic component fabricated in this way is extremely flexible, adaptable and, depending on the material used for the transistors, transparent.
The researchers confirmed the theoretically determined bending radius of 50 micrometers during experiments in which they placed the electronic membrane on human hair and found that the membrane wrapped itself around the hair with perfect conformability
Munzenrieder and Salvatore see 'smart' contact lenses as a potential area of application for their flexible electronics.
In the initial tests, the researchers attached the thin-film transistors, along with strain gauges, to standard contact lenses.
However, M nzenrieder said that in the lab, the film can be easily connected to the energy supply under a microscope but a different solution would need to be found for a unit attached to the actual eye. (ANI)
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