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Highly stretchable polymer semiconductor films through the nanoconfinement effect.

Jie Xu¹, Sihong Wang¹, Ging-Ji Nathan Wang¹

¹Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.

Science (New York, N.Y.)

|January 7, 2017

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Summary

This summary is machine-generated.

Researchers developed highly stretchable polymer semiconductors for wearable electronics by using nanoconfinement. This technique improves stretchability up to 100% strain without sacrificing charge transport mobility, enabling new flexible electronic applications.

Area of Science:

Materials Science
Polymer Science
Electronics Engineering

Background:

Soft and conformable wearable electronics demand stretchable semiconductors.
Existing stretchable semiconductors often compromise charge transport mobility for enhanced stretchability.

Purpose of the Study:

To enhance the stretchability of polymer semiconductors without negatively impacting charge transport mobility.
To explore nanoconfinement as a strategy to improve polymer semiconductor performance under strain.

Main Methods:

Utilizing nanoconfinement of polymers to alter chain dynamics.
Fabricating semiconducting films and testing their mechanical and electrical properties under strain.
Developing fully stretchable transistors and a wearable driver for a light-emitting diode.

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Main Results:

Achieved semiconductor films with up to 100% stretchability without loss of mobility.
Demonstrated significantly reduced modulus and delayed crack formation due to nanoconfinement.
Fabricated stretchable transistors maintaining high performance even under mechanical stress.

Conclusions:

Nanoconfinement is an effective strategy to create highly stretchable polymer semiconductors.
This breakthrough enables the development of advanced wearable electronic devices with superior flexibility and durability.
The technology paves the way for skinlike, conformable electronics.