Transparent conductive film with printable embedded patterns for organic solar cells

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• 作者：Jong-Su Yu^a ; ^b ; Gwan Ho Jung^c ; Jeongdai Jo^a ; Jung Su Kim^a ; Jun Woo Kim^a ; Sun-Woo Kwak^a ; Jong-Lam Lee^c ; Inyoung Kim^a ; ; Dojin Kim^b ; ^{dojin@cnu.ac.kr}
• 关键词：Embedded Ag grid mesh ; Nano-silver paste ; Organic solar cells ; Roll-to-roll imprint ; Transparent conductive film
• 刊名：Solar Energy Materials and Solar Cells
• 出版年：2013
• 出版时间：February, 2013
• 年：2013
• 卷：109
• 期：Complete
• 页码：142-147
• 全文大小：670 K

文摘

We report a development of a highly transparent conductive film (TCF) which is the first embedded metal grid of fine lines on a flexible substrate. The TCF reveals excellent electrical and optical performance as transparent conductive film with an extremely high ¦Ò_DC/¦Ò_OP value of 237 due to 80.35 % transmittance and 6.85 ¦¸/¡õ sheet resistance. Furthermore, the extremely high performance is realized with new features of the TCFs: roll-to-roll printability on flexible substrates, thermal imprinting of channels at 10 ¦Ìm widths, water-based nano-silver paste to fill the narrow channels, and doctor blade as a facile method to fill the paste into the channels. The TCF electrode is implemented to fabrication of an organic solar cell (OSC) which shows a power conversion efficiency of 1.40 % . This is non-optimized yet but approaching that of an ITO-based OSC (1.70 % ). Thus, we demonstrate a printable TCF to replace the ITO films toward low-cost large area roll-to-roll fabrication of organic solar cells.