Metal-mesh based transparent electrodes using roll-to-sheet ultraviolet soft imprinting

Cheng-Hsin Chuang; Bo-Hsiang Chang; Jian-Ming Chen; Deng-Maw Lu

Metal-mesh based transparent electrodes using roll-to-sheet ultraviolet soft imprinting

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Author(s): Cheng-Hsin Chuang ¹ ; Bo-Hsiang Chang ¹ ; Jian-Ming Chen ¹ ; Deng-Maw Lu ¹
- Affiliations: 1: Department of Mechanical Engineering, Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan
Source: Volume 11, Issue 10, October 2016, p. 572 – 576
DOI: 10.1049/mnl.2016.0284 , Online ISSN 1750-0443

Received 12/05/2016, Accepted 23/06/2016, Revised 21/06/2016, Published 01/10/2016

Transparent conductive electrodes (TCEs) possessing a combination of high optical transmission and good electrical conductivity find applications in numerous optoelectronic devices. A low cost fabrication of a fine metal-mesh structure on rigid (glass) and flexible (polyethylene terephthalate – PET) substrates as a promising and feasible approach for fulfilling large size TCE requirements is proposed. A roll-to-sheet ultraviolet imprinting protocol to transfer microtrench structures using a flexible Polydimethylsiloxane stamp is utilised. The conductive silver ink is filled into the microtrench structures by controlling the processing parameters which include pressure, scraping angle and speed. The metal-mesh based glass and PET substrates show a transmission of about 90%, while the electrical resistance is as low as 6 Ω/□. Thus, this method can be utilised as an economically viable alternative to doped indium oxide in TCE applications.

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Metal-mesh based transparent electrodes using roll-to-sheet ultraviolet soft imprinting

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