Fabrication of hierarchical ZnO nanostructures on cotton fabric for wearable device applications

作者：Pandiyarasan V; Suhasini S; Archana J^*; Navaneethan M^*; Majumdar Abhijit; Hayakawa Y; Ikeda H^*

来源：Applied Surface Science, 2017, 418: 352-361.

DOI：10.1016/j.apsusc.2016.12.202

• ZnO nanostructures
• Solvothermal method
• UV protection
• Seebeck coefficient
• Wettability
• Thermoelectric power factor

We have investigated ZnO nanostructures on cotton fabric (CF) s a flexible material for an application of wearable thermoelectric (TE) power generator which requires super-hydrophobicity, UV protection, and high TE efficiency. Field emission scanning electron microscopy images revealed that the formed ZnO nanostructures have a mixture of nanorods and nanosheets and are uniformly coated on the CF. XRD pattern and Raman spectra revealed that the ZnO nanostructure has a wurtzite structure. Contact angle measurements showed that the ZnO-nanostructures-coated CF possessed a high super hydrophobic nature with an angle of 132.5 degrees. ZnO nanocomposite/CF sample exhibited an excellent UV protection factor 183.84. Seebeck coefficient, electrical resistivity and thermoelectric power factor of the ZnO nanostructures on cotton fabric were evaluated to be 28 mu V/K, 0.04 Omega-cm, and 22 mu W/m K-2, respectively.

• 出版日期2017-10-1