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首页> 外文期刊>Advanced functional materials >An All-Nanofiber-Based Substrate-Less, Extremely Conformal, and Breathable Organic Field Effect Transistor for Biomedical Applications
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An All-Nanofiber-Based Substrate-Less, Extremely Conformal, and Breathable Organic Field Effect Transistor for Biomedical Applications

机译：An All-Nanofiber-Based Substrate-Less, Extremely Conformal, and Breathable Organic Field Effect Transistor for Biomedical Applications

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Nanofiber-based electronic devices have attracted considerable interest owingto their conformal integration on complicated surfaces, flexibility, and sweatpermeability. However, building complicated electronics on nanomesh structurehas not been successful because of their inferior mechanical propertiesand processability. This limits their practical application. To achieve systemleveldevice applications, organic field-effect transistors are one of the key componentsto be integrated with various sensors. Herein, a successful methodfor fabricating a biocompatible, ultrathin (≈1.5 μm), lightweight (1.85 g m~(–2)),and mechanically durable all-nanofiber-based organic transistor is reportedthat can be in conformal contact with curved skin. Furthermore, it is the firstdevelopment with a substrate-less nanomesh organic field effect transistor.The devices exhibit satisfactory electrical performance, including an on/offvalue of 3.02 × 10~4 ± 0.9 × 10~4, saturation mobility of 0.05 ± 0.02 cm~2 V~(?1) s~(?1),subthreshold slope of 1.7 ± 0.2 V dec~(–1), and threshold voltage of ?6 ± 0.5 V. The mechanism of crack initiation is analyzed, via simulation, to understand the deformation of the nanomesh transistors. Furthermore, active matrix integrated tactile sensors entirely on the nanomeshes is successfully demonstrated, indicating their potential applicability in the field of biomedical electronics.

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