Jo, Young Jin Kim, Heyn Ok, Jehyung Shin, Yiel-Jae Shin, Joo Hwan Kim, Tae Hee Jung, Youngmee Kim, Tae-il 2024-01-19T17:04:28Z 2024-01-19T17:04:28Z 2021-09-05 2020-07 1616-301X https://pubs.kist.re.kr/handle/201004/118458 Biocompatible, biodegradable, and solid-state electrolyte-based organic transistors are demonstrated. As the electrolyte is composed of all edible materials, which are levan polysaccharide and choline-based ionic liquid, the organic transistor fabricated on the electrolyte can be biocompatible and biodegrable. Compared to the other ion gel based electrolytes, it has superior electrical and mechanical properties, large specific capacitance (approximate to 40 mu F cm(-2)), non-volatility, flexibility, and high transparency. Thus, it shows mechanical reliability by maintaining electrical performances under up to 1.11% of effective bending strain, 5% of stretching, and have low operation voltage range when it is utilized in organic transistors. Moreover, the biodegradable electrolyte-based organic transistors can be applied to bio-integrated devices, such as electrocardiogram (ECG) recordings on human skin and the heart of a rat. The measured ECG signals from the transistors, compared to signals from electrode-based sensors, has a superior signal-to-noise ratio. The biocompatible and biodegradable materials and devices can contribute to the development of many bioelectronics. English WILEY-V C H VERLAG GMBH FIELD-EFFECT TRANSISTORS THIN-FILM TRANSISTORS GEL GATE DIELECTRICS CONDUCTING POLYMERS TEMPERATURE-SENSOR SKIN INTERFACE MEMORY LAYER Biocompatible and Biodegradable Organic Transistors Using a Solid-State Electrolyte Incorporated with Choline-Based Ionic Liquid and Polysaccharide Article 10.1002/adfm.201909707 1 ADVANCED FUNCTIONAL MATERIALS, v.30, no.29 ADVANCED FUNCTIONAL MATERIALS 30 29 scie scopus 000510759400001 2-s2.0-85078939666 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article FIELD-EFFECT TRANSISTORS THIN-FILM TRANSISTORS GEL GATE DIELECTRICS CONDUCTING POLYMERS TEMPERATURE-SENSOR SKIN INTERFACE MEMORY LAYER biodegradable electronics choline-based ionic dielectrics organic transistor solid-state electrolyte