Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 114, Issue 20, Pages 5107-5112Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1701478114
Keywords
organic electronics; flexible electronics; conjugated polymers; thin-film transistors; biodegradable materials
Categories
Funding
- Air Force Office for Scientific Research [FA9550-15-1-0106]
- BASF
- Marie Curie Cofund, Beatriu de Pinos Fellowship AGAUR [2014 BP-A 00094]
- Kodak Graduate Fellowship
- US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]
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Increasing performance demands and shorter use lifetimes of consumer electronics have resulted in the rapid growth of electronic waste. Currently, consumer electronics are typically made with nondecomposable, nonbiocompatible, and sometimes even toxic materials, leading to serious ecological challenges worldwide. Here, we report an example of totally disintegrable and biocompatible semiconducting polymers for thin-film transistors. The polymer consists of reversible imine bonds and building blocks that can be easily decomposed under mild acidic conditions. In addition, an ultrathin (800-nm) biodegradable cellulose substrate with high chemical and thermal stability is developed. Coupled with iron electrodes, we have successfully fabricated fully disintegrable and biocompatible polymer transistors. Furthermore, disintegrable and biocompatible pseudo-complementary metal-oxide-semiconductor (CMOS) flexible circuits are demonstrated. These flexible circuits are ultrathin (<1 mu m) and ultralightweight (similar to 2 g/m(2)) with low operating voltage (4 V), yielding potential applications of these disintegrable semiconducting polymers in low-cost, biocompatible, and ultralightweight transient electronics.
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