Journal
SMALL
Volume 9, Issue 12, Pages 2111-2118Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201201485
Keywords
electronics; lasers; microstructures; organometallic compounds; flexible electrodes
Categories
Funding
- second stage of the Brain Korea 21 (BK 21)
- National Research Foundation of Korea (NRFK)
- Ministry of Education, Science, and Technology [2012R1A2A1A01010307]
- National Research Foundation of Korea [2012R1A2A1A01010307] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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 cm) below a 5 m line width with a uniform stepwise profile and mirror surface quality (Rrms: 5-6 nm) is fabricated on a cheap polymer film with a heat resistance limit of below 100 degrees 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 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.
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