Intrinsically Stretchable n-Type Organic Transistor Based on Elastic Hybrid Network Semiconducting Film

Intrinsically stretchable organic field-effect transistors (OFETs) are actively researched in wearable electronics because of their outstanding advantages including high mechanical deformation, low-cost and stable electrical performance. However, the investigation of intrinsically stretchable n-type OFETs, crucial for logic circuits, remains limited. Here, intrinsically stretchable n-type OFETs based on elastic hybrid network semiconducting film were fabricated. The stretchable n-type semiconducting films present a high crack-onset strain of 110% strain (original 4%) and high electron mobility of 0.12 cm $^{{2}}\,\,\text{V}^{-{1}}\,\,\text{s}^{-{1}}$ . Based on the stretchable semiconducting film, the intrinsically stretchable n-type OFETs show stable electrical performance at 50% strain and could stably drive LED under $\approx 25$ % strain. Our work provides a simple co-mixing strategy to improve the stretchability of n-type semiconductors and applies it to intrinsically stretchable n-type organic field-effect transistors, showing great promise for applications in the integration of wearable electronics.