期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202006273
关键词
inkjet printing; negative-temperature-coefficient thermistors; perovskites; textiles
类别
资金
- US National Science Foundation [1537196, 1449383]
- Walmart Manufacturing Innovation Foundation [29955421]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1537196] Funding Source: National Science Foundation
A novel low-temperature printing method has been developed for creating wearable negative-temperature-coefficient thermistors on thermally sensitive fabrics. The method utilizes stable and printable ink to achieve a processing temperature of 120 degrees C.
A novel low-temperature route is developed for inkjet printing of the perovskite Cs2SnI6, to create wearable negative-temperature-coefficient thermistors with unprecedented performance on thermally sensitive fabrics. A low processing temperature of 120 degrees C is achieved by creating a stable and printable ink using binary metal iodide salts, which is thermally transformed into dense Cs(2)SnI(6)crystals after printing. The optimally printed Cs(2)SnI(6)shows a temperature measurement range up to 120 degrees C, high sensitivity (4400 K), and temperature coefficient of resistivity (0.05 degrees C-1), and stability under ambient environmental conditions and bending. The approach breaks a critical tradeoff that has hindered wearable fabric-based thermistors by enabling damage-free fabrication of devices with commercially comparable performance, evincing significant applications in multifunctional textiles and beyond.
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