Molecularly Stretchable Electronics

作者：Suchol Savagatrup, Adam D. Printz, Timothy F. O’Connor, Aliaksandr V. Zaretski, Darren J. Lipomi · 发表于：Chemistry of Materials · 年份：2014 · DOI：10.1021/cm501021v · 被引用次数：184 · 研究领域：Organic Electronics and Photovoltaics、Advanced Sensor and Energy Harvesting Materials、Conducting polymers and applications

This Perspective describes electronic materials whose molecular structure permits extreme deformation without the loss of electronic function. This approach—“molecularly stretchable” electronics—is complementary to the highly successful approaches enabled by stretchable composite materials. We begin by identifying three general types of stretchable electronic materials: (1) random composites of rigid structures sitting atop or dispersed in an elastic matrix, (2) deterministic composites of patterned serpentine, wavy, or fractal structures on stretchable substrates, and (3) molecular materials—noncomposite conductors and semiconductors—that accommodate strain intrinsically by the rational design of their chemical structures. We then identify a short-term and a long-term goal of intrinsically stretchable organic electronics: the short-term goal is improving the mechanical stability of devices for which commercialization seems inevitable; the long-term goal is enabling of electronic devices in which every component is highly elastic, tough, ductile, or some combination thereof. Finally, we describe our and others’ attempts to identify the molecular and microstructural determinants of the mechanical properties of organic semiconductors, along with applications of especially deformable materials in stretchable and mechanically robust devices. Our principal conclusion is that while the field of plastic electronics has achieved impressive gains in the last several years in terms of ...