Intense-pulsed-light irradiation of Ag nanowire-based transparent electrodes for use in flexible organic light emitting diodes |
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| Affiliation: | 1. Display Components & Materials Research Center, Korea Electronics Technology Institute, 68 Yatap-dong, Bundang-gu, Seongnam 463-816, South Korea;2. Display Convergence Research Center, Korea Electronics Technology Institute, 68 Yatap-dong, Bundang-gu, Seongnam 463-816, South Korea;3. Reliability Physics Research Center, Korea Electronics Technology Institute, 68 Yatap-dong, Bundang-gu, Seongnam 463-816, South Korea;4. Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 136-713, South Korea;1. Department of Mechanical Engineering Science, Yeungnam University, Gyeongsan, 38541, South Korea;2. Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan, 44412, Republic of Korea;3. Department of Advanced Organic Materials Engineering, Yeungnam University, Gyeongsan, 38541, South Korea;4. Department of Polymer Science & Engineering and Department of IT Convergence, Korea National University of Transportation, 50 Daehak-Ro, Chungju, 27469, Republic of Korea;5. School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea;1. Department of Mechanical Engineering Science, Yeungnam University, Gyeongsan, 712-749, Republic of Korea;2. Rahum Nano Tech, Inc., Seoul, 05719, Republic of Korea;3. School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea;4. Graduate School of Flexible and Printable Electronics, Chonbuk National University, Jeonju, 54896, Republic of Korea;1. Carbon & Light Materials Application Group, Korea Institute of Industrial Technology, 222 Palbok-ro, Deokjin-gu, Jeonju 54853, Republic of Korea;2. School of Advanced Materials Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Republic of Korea;3. Display Materials & Components Research Center, Korea Electronics Technology Institute, 68 Yatap-dong, Bundang-gu, Seongnam 463-816, Republic of Korea |
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| Abstract: | Silver nanowire (AgNW) based transparent electrodes are inherently coarse and therefore typically are only ever weakly bonded to a substrate. A remarkable improvement in the characteristics of a AgNW network film has, however, been achieved through a simple and short process of irradiating it with intense pulsed light (IPL). This not only avoids any severe deterioration in the optical characteristics of the AgNW film, but also significantly improves its electrical conductivity, adhesion to a polymeric substrate, and ability to endure bending stress. Most important of all, however, is the finding that the surface roughness of AgNW networks can also be improved by radiation. In a series of measurements made of organic light emitting diodes fabricated using these treated electrodes, it was revealed that the leakage current can be notably reduced by IPL treatment. |
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| Keywords: | Intense pulsed light Ag nanowire Organic light emitting diode Flexible electrode Transparent electrode |
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