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Adaptive Fabrication of a Flexible Electrode by Optically Self‐Selected Interfacial Adhesion and Its Application to Highly Transparent and Conductive Film
Author(s) -
Kang Bongchul,
Yun Jinho,
Kim SungGaun,
Yang Minyang
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201201485
Subject(s) - materials science , sheet resistance , fabrication , electrode , electrical conductor , conductive polymer , optoelectronics , layer (electronics) , transparent conducting film , adhesion , polymer , composite material , conductivity , polyaniline , electrical resistivity and conductivity , nanotechnology , polymerization , medicine , chemistry , alternative medicine , pathology , electrical engineering , engineering
A novel adaptive electrode fabrication method using optically self‐selected interfacial adhesion between a laser‐processed metal layer and polymer film is introduced to fabricate cost‐effectively a high‐resolution arbitrary electrode with high conductivity. The quality is close to that from vacuum deposition on a highly heat sensitive polymer film, with active response to various design requirements. A highly conductive metal film (resistivity: 3.6 μΩ cm) below a 5 μm line width with a uniform stepwise profile and mirror surface quality ( R rms : 5–6 nm) is fabricated on a cheap polymer film with a heat resistance limit of below 100 °C. Severe durability tests are successfully completed without using any adhesion promoters. Finally, a highly transparent and conductive electrode with a transparency above 95% and sheet resistance of less than 10 Ω sq −1 is fabricated on a polymer film and on glass by using this method. These results can help realize a potential high‐throughput, low‐cost, solution‐processable replacement for transparent conductive oxides.