SiC\u306fGaN\u3068\u3088\u304f\u6bd4\u3079\u3089\u308c\u307e\u3059\u3002\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u306fSiC\u304c3.26eV, GaN\u304c3.5eV\u3068\u30b7\u30ea\u30b3\u30f3\u306e1.1eV\u306b\u6bd4\u3079\u3066\u7d043\u500d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30ef\u30a4\u30c9\u30ae\u30e3\u30c3\u30d7\u534a\u5c0e\u4f53\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u9ad8\u6e29\u3067\u534a\u5c0e\u4f53\u3068\u3057\u3066\u4f7f\u3048\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u3092\u8d85\u3048\u3066\u71b1\u52b1\u8d77\u3055\u308c\u308b\u96fb\u5b50\u3084\u6b63\u5b54\u306e\u6570\u304c\u30c9\u30fc\u30d4\u30f3\u30b0\u3067\u5236\u5fa1\u3055\u308c\u308b\u96fb\u5b50\u3084\u6b63\u5b54\u306e\u6570\u3088\u308a\u3082\u305a\u3063\u3068\u5c11\u306a\u3044\u3068\u3044\u3046\u6761\u4ef6\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002\u71b1\u52b1\u8d77\u306e\u78ba\u7387\u306ff(\u0394E,T)=exp(-\u0394E\/kT)\u3067\u3001\u0394E\u304c\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001T=300\u2103\uff1d573K\u3068\u3059\u308b\u3068\u3001f(1.1eV,573K)=2\u00d710^-10\u306b\u5bfe\u3057\u3001f(3.26eV,473K)=2×10^-29\u3067\u3059\u3002\u30b7\u30ea\u30b3\u30f3\u534a\u5c0e\u4f53\u30c7\u30d0\u30a4\u30b9\u306f300\u2103\u306b\u306a\u308b\u3068\u52d5\u4f5c\u304c\u602a\u3057\u304f\u306a\u308a\u307e\u3059\u304c\u3001SiC\u3060\u3068\u307e\u3060\u4f7f\u3048\u308b\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u71b1\u4f1d\u5c0e\u52b9\u7387\u306f\u6e29\u5ea6\u5dee\u306b\u6bd4\u4f8b\u3059\u308b\u305f\u3081\u3001\u9ad8\u6e29\u306e\u65b9\u304c\u71b1\u4f1d\u5c0e\u52b9\u7387\u304c\u3088\u304f\u653e\u71b1\u5668\u304c\u5c0f\u3055\u304f\u3066\u3059\u3080\u306e\u3067\u3001\u88c5\u7f6e\u306e\u5c0f\u578b\u5316\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3055\u3089\u306b\u3001SiC\u3082GaN\u3082\u7d76\u7e01\u8010\u5727\u304c3MV\/cm\u3067\u3001\u30b7\u30ea\u30b3\u30f3\u306e0.3MV\/cm\u306b\u6bd4\u3079\u3066\u4e00\u6841\u9ad8\u3044\u305f\u3081\u3001\u540c\u3058\u69cb\u9020\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u30821\u6841\u5927\u304d\u306a\u96fb\u5727\u3092\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3082\u5c0f\u578b\u5316\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u6700\u8fd1\u306fAC\u30a2\u30c0\u30d7\u30bf\u30fc\u3084\u8eca\u8f09\u6a5f\u5668\u3067\u9ad8\u96fb\u5727\u3092\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u9700\u8981\u304c\u9ad8\u307e\u3063\u3066\u3044\u307e\u3059\u3002GaN\u306b\u5bfe\u3059\u308bSiC\u306e\u660e\u78ba\u306a\u512a\u4f4d\u6027\u306f\u71b1\u4f1d\u5c0e\u5ea6\u3067\u3001SiC\u304c4.9W\/cm2\u30fb\u2103\u306b\u5bfe\u3057GaN\u306f1.3W\/cm2\u30fb\u2103\u3067\u3059\u3002\u3053\u308c\u306f\u8a31\u5bb9\u3055\u308c\u308b\u96fb\u529b\u640d\u5931\u3092\u6c7a\u3081\u308b\u306b\u91cd\u8981\u306a\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002
\nhttps:\/\/www.rohm.co.jp\/electronics-basics\/sic\/sic_what1
\nLED\u3084\u30ec\u30fc\u30b6\u30fc\u3092\u4f5c\u308b\u3068\u304d\u306b\u306fGaN\u306e\u65b9\u304c\u5727\u5012\u7684\u306b\u9ad8\u6027\u80fd\u3067\u3059\u3002Cree\u793e\u306fSiC\u306e\u9752\u8272\u767a\u5149\u30c0\u30a4\u30aa\u30fc\u30c9\u3092\u4e16\u306b\u51fa\u3057\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306fGaN\u3092\u3084\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002
\n\u540c\u30da\u30fc\u30b8\u306e\u4e0b\u306e\u65b9\u306b\u30ab\u30bf\u30ed\u30b0\u304c\u3042\u308a\u307e\u3059\u304c\u3001SiC\u306e\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u306f\u5e02\u8ca9\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8010\u5727\u304c\u975e\u5e38\u306b\u9ad8\u3044\u306e\u3067\u3001\u30d7\u30e9\u30ba\u30de\u306e\u96fb\u6e90\u306a\u3069\u306b\u4f7f\u3046\u3068\u56de\u8def\u8a2d\u8a08\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002
\nhttps:\/\/www.rohm.co.jp\/electronics-basics\/sic\/sic_what3
\n\u306b\u3088\u308b\u3068\u3001SiC\u306fSi\u306b\u6bd4\u3079\u3066MOSFET\u99c6\u52d5\u306e\u305f\u3081\u306e\u30b2\u30fc\u30c8\u96fb\u5727\u3092\u9ad8\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305d\u3046\u3067\u3059\u3002Si\u306f4V\u3067\u5341\u5206\u3067\u3059\u304c\u3001SiC\u306f18V\u4ee5\u4e0a\u3067\u3059\u3002GaN\u306f5V\u3068\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u304c\u3001\u56de\u8def\u8a2d\u8a08\u4e0a\u306b\u5de5\u592b\u304c\u5fc5\u8981\u306e\u3088\u3046\u3067\u3059\u3002GaN\u306e\u9ad8\u5468\u6ce2\u30c7\u30d0\u30a4\u30b9\u3092\u4f7f\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u8ca0\u96fb\u6e90\u304c\u5fc5\u8981\u3067\u3001\u3064\u306a\u304c\u306a\u3044\u3068\u4e00\u767a\u3067\u58ca\u308c\u308b\u3068\u8105\u3055\u308c\u307e\u3057\u305f\u3002\u65b0\u7d20\u6750\u306b\u3088\u308b\u30c7\u30d0\u30a4\u30b9\u304c\u51fa\u3066\u304f\u308b\u3068\u56de\u8def\u5c4b\u3055\u3093\u3082\u305f\u3044\u3078\u3093\u3067\u3059\u3002
\nhttps:\/\/esh.rohm.co.jp\/s\/article\/000010647?language=ja<\/p>\n
\u82f1\u8a9e\u306f\u3000https:\/\/en.wikipedia.org\/wiki\/Wide-bandgap_semiconductor
\n\u201dWide-bandgap semiconductors (also known as WBG semiconductors or WBGSs) are semiconductor materials which have a larger band gap than conventional semiconductors.\u201d
\nconventional \u901a\u5e38\u306e
\n“Wide-bandgap semiconductors permit devices to operate at much higher voltages, frequencies, and temperatures than conventional semiconductor materials like silicon and gallium arsenide. They are the key component used to make short-wavelength (green-UV) LEDs or lasers, and are also used in certain radio frequency applications, notably military radars.”
\npermit devices to operate at higher temperatures \u7d20\u5b50\u304c\u9ad8\u6e29\u3067\u52d5\u4f5c\u3059\u308b\u306e\u3092\u8a31\u5bb9\u3059\u308b
\nradar \u30ec\u30fc\u30c0\u30fc
\n\u201dSolid-state lighting using wide-bandgap semiconductors has the potential to reduce the amount of energy required to provide lighting compared with incandescent lights, which have a luminous efficacy of less than 20 lumens per watt. The efficacy of LEDs is on the order of 160 lumens per watt.\u201d
\nlighting \u3089\u30a4\u30c6\u30a3\u30f3\u30b0\u3000\u7167\u660e
\nincandescent light \u30a4\u30f3\u30ab\u30f3\u300c\u30c7\u30c3\u300d\u30bb\u30f3\u30c8\u3000\u767d\u71b1\u706f
\nefficacy \u52b9\u80fd\u3068\u8a33\u3059\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u304c\u3001\u3053\u3053\u3067\u306f\u300c\u52b9\u7387\u300d\u304c\u3044\u3044\u3067\u3057\u3087\u3046\u3002
\n\u203b\u3000Efficacy refers to the ability to produce a desired or intended result, while efficiency focuses on how well resources are used to achieve that result, minimizing waste. In essence, efficacy is about doing the right things, and efficiency is about doing things right. (answer by Google AI)<\/p>\n","protected":false},"excerpt":{"rendered":"
SiC\u306fGaN\u3068\u3088\u304f\u6bd4\u3079\u3089\u308c\u307e\u3059\u3002\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u306fSiC\u304c3.26eV, GaN\u304c3.5eV\u3068\u30b7\u30ea\u30b3\u30f3\u306e1.1eV\u306b\u6bd4\u3079\u3066\u7d043\u500d\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30ef\u30a4\u30c9\u30ae\u30e3\u30c3\u30d7\u534a\u5c0e\u4f53\u3068\u547c\u3070\u308c\u307e\u3059\u3002\u9ad8\u6e29\u3067\u534a\u5c0e\u4f53\u3068\u3057\u3066\u4f7f\u3048\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u3092\u8d85\u3048\u3066\u71b1\u52b1\u8d77\u3055\u308c\u308b\u96fb\u5b50\u3084\u6b63\u5b54\u306e\u6570\u304c\u30c9\u30fc\u30d4\u30f3\u30b0\u3067\u5236\u5fa1\u3055\u308c\u308b\u96fb\u5b50\u3084\u6b63\u5b54\u306e\u6570\u3088\u308a\u3082\u305a\u3063\u3068\u5c11\u306a\u3044\u3068\u3044\u3046\u6761\u4ef6\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002\u71b1\u52b1\u8d77\u306e\u78ba\u7387\u306ff(\u0394E,T)=exp(-\u0394E\/kT)\u3067\u3001\u0394E\u304c\u30d0\u30f3\u30c9\u30ae\u30e3\u30c3\u30d7\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001T=300\u2103\uff1d573K\u3068\u3059\u308b\u3068\u3001f(1.1eV,573K)=2\u00d710^-10\u306b\u5bfe\u3057\u3001f(3.26eV,473K)=2×10^-29\u3067\u3059\u3002\u30b7\u30ea\u30b3\u30f3\u534a\u5c0e\u4f53…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[42,44],"tags":[5,7],"class_list":["post-2235","post","type-post","status-publish","format-standard","hentry","category-tech","category-materials","tag-tech","tag-materials"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/2235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2235"}],"version-history":[{"count":0,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=\/wp\/v2\/posts\/2235\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sekaiken.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}