Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 5, Pages 4932-4940Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b12995
Keywords
metal mesh; transparent flexible electrode; pentagon; asymmetric; transparent heaters; polyethylene terephthalate; PET
Funding
- European Union [309201]
- Science Foundation Ireland under the CONNECT Research Centre [13/RC/2077]
Ask authors/readers for more resources
Metal meshes have emerged as an important class of flexible transparent electrodes. We report on the characteristics of a new class of asymmetric meshes, tiled using a recently discovered family of pentagons. Micron-scale meshes were fabricated on flexible polyethylene terephthalate substrates via optical lithography, metal evaporation (Ti 10 nm, Pt 50 nm), and lift-off. Three different designs were assessed, each with the same tessellation pattern and line width (5 ism), but with different sizes of the fundamental pentagonal unit. Good mechanical stability was observed for both tensile strain and compressive strain. After 1000 bending cycles, devices subjected to tensile strain showed fractional resistance increases in the range of 8-17%, while devices subjected to compressive strain showed fractional resistance increases in the range of 0-7%. The performance of the pentagonal metal mesh devices as visible transparent heaters via Joule heating was also assessed. Rapid response times (similar to 15 s) at low bias voltage (<= 5V) and good thermal resistance characteristics (213-258 degrees Ccm(2)/W) were found using measured thermal imaging data. Deicing of an ice-bearing glass coupon on top of the transparent heater was also successfully demonstrated.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available