Low-cost facile fabrication of flexible transparent copper electrodes by nanosecond laser ablation

Dongwoo Paeng; Jae-Hyuck Yoo; Junyeob Yeo; Daeho Lee; Eunpa Kim; Seung Hwan Ko; Costas P Grigoropoulos

doi:10.1002/adma.201500098

Low-cost facile fabrication of flexible transparent copper electrodes by nanosecond laser ablation

Adv Mater. 2015 May 6;27(17):2762-7. doi: 10.1002/adma.201500098. Epub 2015 Mar 27.

Authors

Dongwoo Paeng¹, Jae-Hyuck Yoo, Junyeob Yeo, Daeho Lee, Eunpa Kim, Seung Hwan Ko, Costas P Grigoropoulos

Affiliation

¹ Laser Thermal Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Berkeley, CA, 94720-1740, USA.

PMID: 25821011
DOI: 10.1002/adma.201500098

Abstract

Low-cost Cu flexible transparent conducting electrodes (FTCEs) are fabricated by facile nanosecond laser ablation. The fabricated Cu FTCEs show excellent opto-electrical properties (transmittance: 83%, sheet resistance: 17.48 Ω sq(-1)) with outstanding mechanical durability. Successful demonstration of a touch-screen panel confirms the potential applicability of Cu FTCEs to the flexible optoelectronic devices.

Keywords: copper thin films; flexible electronics; laser ablation; touch screen panel; transparent electrode.