{"id":2056,"date":"2020-08-28T10:42:46","date_gmt":"2020-08-28T01:42:46","guid":{"rendered":"http:\/\/wps.itc.kansai-u.ac.jp\/colloid\/?p=2056"},"modified":"2020-12-30T12:16:55","modified_gmt":"2020-12-30T03:16:55","slug":"2020%e5%b9%b48%e6%9c%8827%e6%97%a5%e3%80%90%e5%b0%8e%e9%9b%bb%e6%80%a7%e9%8a%85%e3%82%a4%e3%83%b3%e3%82%af-review%e3%80%91nanomaterials%e8%aa%8c%e3%81%ab%e8%ab%96%e6%96%87%e3%82%a2%e3%82%af%e3%82%bb","status":"publish","type":"post","link":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/2020\/08\/2056","title":{"rendered":"2020\u5e748\u670827\u65e5\u3010\u5c0e\u96fb\u6027\u9285\u30a4\u30f3\u30af\/Review\u3011Nanomaterials\u8a8c\u306b\u8ad6\u6587\u30a2\u30af\u30bb\u30d7\u30c8"},"content":{"rendered":"\n<p> \u5370\u5237\u6280\u8853\u3092\u4f7f\u3063\u3066\u96fb\u5b50\u90e8\u54c1\u3084\u30c7\u30d0\u30a4\u30b9\u3092\u88fd\u9020\u3059\u308b\u30d7\u30ea\u30f3\u30bf\u30d6\u30eb\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9(PE)\u306f\uff0c\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u30c7\u30d0\u30a4\u30b9\u306a\u3069\u306e\u96fb\u5b50\u30c7\u30d0\u30a4\u30b9\u88fd\u9020\u5206\u91ce\u306b\u304a\u3044\u3066\u9769\u65b0\u7684\u306a\u6280\u8853\u3068\u3044\u3048\u3001IoT\u793e\u4f1a\u5b9f\u73fe\u306b\u5411\u3051\u305f\u91cd\u8981\u306a\u30cb\u30e5\u30fc\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3068\u3057\u3066\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u672c\u30ec\u30d3\u30e5\u30fc\u8ad6\u6587\u3067\u306f\u3001PE\u7528\u9014\u5411\u3051\u306e\u5c0e\u96fb\u6027\u9285\u30a4\u30f3\u30af\/\u30da\u30fc\u30b9\u30c8\u8a2d\u8a08\u306e\u6700\u8fd1\u306e\u52d5\u5411\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-1024x576.png\" alt=\"\" class=\"wp-image-2157\" srcset=\"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-1024x576.png 1024w, https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-300x169.png 300w, https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-768x432.png 768w, https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-1536x864.png 1536w, https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-2048x1152.png 2048w, https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-content\/uploads\/sites\/48\/2020\/12\/nanomaterials-10-01689-ag-360x203.png 360w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.mdpi.com\/2079-4991\/10\/9\/1689\"> Tomotoshi, D.; Kawasaki, H. Surface and Interface Designs in Copper-Based Conductive Inks for Printed\/Flexible\u3000Electronics.&nbsp;<em>Nanomaterials<\/em><strong>\u30002020<\/strong>,&nbsp;<em>10<\/em>, 1689. <\/a><\/p>\n\n\n\n<p> Silver (Ag), gold (Au), and copper (Cu) have been utilized as metals for fabricating metal-based inks\/pastes for printed\/flexible electronics. Among them, Cu is the most promising candidate for metal-based inks\/pastes. Cu has high intrinsic electrical\/thermal conductivity, which is more cost-effective and abundant, as compared to Ag. Moreover, the migration tendency of Cu is less than that of Ag. Thus, recently, Cu-based inks\/pastes have gained increasing attention as conductive inks\/pastes for printed\/flexible electronics. However, the disadvantages of Cu-based inks\/pastes are their instability against oxidation under an ambient condition and tendency to form insulating layers of Cu oxide, such as cuprous oxide (Cu<sub>2<\/sub>O) and cupric oxide (CuO). The formation of the Cu oxidation causes a low conductivity in sintered Cu films and interferes with the sintering of Cu particles. In this review, we summarize the surface and interface designs for Cu-based conductive inks\/pastes, in which the strategies for the oxidation resistance of Cu and low-temperature sintering are applied to produce highly conductive Cu patterns\/electrodes on flexible substrates. First, we classify the Cu-based inks\/pastes and briefly describe the surface oxidation behaviors of Cu. Next, we describe various surface control approaches for Cu-based inks\/pastes to achieve both the oxidation resistance and low-temperature sintering to produce highly conductive Cu patterns\/electrodes on flexible substrates. These surface control approaches include surface designs by polymers, small ligands, core-shell structures, and surface activation. Recently developed Cu-based mixed inks\/pastes are also described, and the synergy effect in the mixed inks\/pastes offers improved performances compared with the single use of each component. Finally, we offer our perspectives on Cu-based inks\/pastes for future efforts. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5370\u5237\u6280\u8853\u3092\u4f7f\u3063\u3066\u96fb\u5b50\u90e8\u54c1\u3084\u30c7\u30d0\u30a4\u30b9\u3092\u88fd\u9020\u3059\u308b\u30d7\u30ea\u30f3\u30bf\u30d6\u30eb\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9(PE)\u306f\uff0c\u30d5\u30ec\u30ad\u30b7\u30d6\u30eb\u30c7\u30d0\u30a4\u30b9\u306a\u3069\u306e\u96fb\u5b50\u30c7\u30d0\u30a4\u30b9\u88fd\u9020\u5206\u91ce\u306b\u304a\u3044\u3066\u9769\u65b0\u7684\u306a\u6280\u8853\u3068\u3044\u3048\u3001IoT\u793e\u4f1a\u5b9f\u73fe\u306b\u5411\u3051\u305f\u91cd\u8981\u306a\u30cb\u30e5\u30fc\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3068\u3057\u3066\u671f\u5f85\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u672c\u30ec\u30d3\u30e5\u30fc\u8ad6\u6587\u3067\u306f\u3001PE\u7528\u9014\u5411\u3051\u306e\u5c0e\u96fb\u6027\u9285\u30a4\u30f3\u30af\/\u30da\u30fc\u30b9\u30c8\u8a2d\u8a08\u306e\u6700\u8fd1\u306e\u52d5\u5411\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002 Tomotoshi, D.; Kawasaki, H. Surface and <a href=\"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/2020\/08\/2056\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":61,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[18],"tags":[],"class_list":["post-2056","post","type-post","status-publish","format-standard","hentry","category-recent-publications"],"_links":{"self":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/posts\/2056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/users\/61"}],"replies":[{"embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/comments?post=2056"}],"version-history":[{"count":2,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/posts\/2056\/revisions"}],"predecessor-version":[{"id":2158,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/posts\/2056\/revisions\/2158"}],"wp:attachment":[{"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/media?parent=2056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/categories?post=2056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wps.itc.kansai-u.ac.jp\/colloid\/wp-json\/wp\/v2\/tags?post=2056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}