Details

Autor(en) / Beteiligte

• Koivikko, Anastasia
• Sharma, Vipul
• Lampinen, Vilma
• Yiannacou, Kyriacos
• Sariola, Veikko

Titel

Biodegradable, Flexible and Transparent Tactile Pressure Sensor Based on Rubber Leaf Skeletons

Ist Teil von

• 2020 IEEE Sensors, 2020, p.1-4

Ort / Verlag

IEEE

Erscheinungsjahr

2020

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• Capacitive sensors have many applications in tactile sensing, human-machine interfaces, on-body sensors, and patient monitoring. Particularly in biomedical applications, it would be beneficial if the sensor is disposable and readily degradable for efficient recycling. In this study, we report a biodegradable capacitive tactile pressure sensor based on sustainable and bio resourced materials. Silver-nanowire-coated rubber tree leaf skeletons are used as transparent and flexible electrodes while a biodegradable clear tape is used as the dielectric layer. The fabricated sensor is sensitive and can respond to low pressures (7.9 mN when pressed with a probe with a surface area of 79 mm 2 / 0.1 kPa) ranging to relatively high pressures (37 kPa), with a sensitivity up to ≈ 4.5×10 -3 kPa 1 . Owing to all bio resourced constituents, the sensor is biodegradable and does not create electronic waste.