Fig. 2From: Copper micromesh-based lightweight transparent conductor with short response time for wearable heatersa Digital photograph of the Cu mesh/PVA film (45 mm × 45 mm) with ~ 50 µm thick PVA substrate as a transparent conductor in an electronic circuit connected to a LED. b Comparison of the optical transmittance and sheet resistance of the Cu mesh/PVA film with ~ 50 µm thick PVA substrate fabricated this study, and those of previously reported metal-based transparent conductors. The numbers in the square brackets indicate the cited referencesBack to article page