{"id":3832,"date":"2015-10-02T22:19:39","date_gmt":"2015-10-02T15:19:39","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=3832"},"modified":"2017-09-27T22:21:34","modified_gmt":"2017-09-27T15:21:34","slug":"thiet-bi-dau-tien-tren-the-gioi-co-the-bien-truc-tiep-anh-sang-thanh-dong-dien","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/thiet-bi-dau-tien-tren-the-gioi-co-the-bien-truc-tiep-anh-sang-thanh-dong-dien\/","title":{"rendered":"Thi\u1ebft b\u1ecb \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi c\u00f3 th\u1ec3 bi\u1ebfn tr\u1ef1c ti\u1ebfp \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n"},"content":{"rendered":"<p><strong>\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p tr\u1ef1c ti\u1ebfp bi\u1ebfn \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n, kh\u00e1c v\u1edbi c\u00e1c t\u1ea5m n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi tr\u01b0\u1edbc \u0111\u00e2y.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3834\" src=\"http:\/\/ttud.com.vn\/wp-content\/uploads\/2017\/09\/02102015090940-duytranthiet-bi-dau-tien-tren-the-gioi-co-the-bien-truc-tiep-anh-sang-thanh-dong-dien-1.jpg\" alt=\"\" width=\"500\" height=\"205\" srcset=\"https:\/\/casta.ttud.com.vn\/wp-content\/uploads\/2017\/09\/02102015090940-duytranthiet-bi-dau-tien-tren-the-gioi-co-the-bien-truc-tiep-anh-sang-thanh-dong-dien-1.jpg 500w, https:\/\/casta.ttud.com.vn\/wp-content\/uploads\/2017\/09\/02102015090940-duytranthiet-bi-dau-tien-tren-the-gioi-co-the-bien-truc-tiep-anh-sang-thanh-dong-dien-1-300x123.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 rectenna quang h\u1ecdc. V\u1edbi c\u1ea5u t\u1ea1o bao g\u1ed3m m\u1ed9t \u0103ng-ten, m\u1ed9t diode ch\u1ec9nh l\u01b0u v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i tr\u1ef1c ti\u1ebfp t\u1eeb \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n<p>Tr\u01b0\u1edbc \u0111\u00e2y c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u1ea1o ra \u0111\u01b0\u1ee3c c\u00e1c rectenna \u0111\u1ec3 thu n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb \u00e1nh s\u00e1ng h\u1ed3ng ngo\u1ea1i, nh\u01b0ng ch\u1ec9 \u0111\u1ea1t hi\u1ec7u su\u1ea5t 1%. Tuy nhi\u00ean c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Vi\u1ec7n c\u00f4ng ngh\u1ec7 Georgia \u0111\u00e3 t\u00ecm ra c\u00e1ch t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y l\u00ean \u0111\u1ebfn 40%, khi\u1ebfn cho tri\u1ec3n v\u1ecdng \u00e1p d\u1ee5ng v\u00e0o th\u1ef1c t\u1ebf c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y ng\u00e0y c\u00e0ng g\u1ea7n h\u01a1n.<\/p>\n<p>Thi\u1ebft b\u1ecb rectenna quang h\u1ecdc m\u1edbi n\u00e0y s\u1eed d\u1ee5ng c\u00e1c \u1ed1ng nano carbon x\u1ebfp li\u1ec1n nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t b\u1ec1 m\u1eb7t d\u1eabn \u0111i\u1ec7n v\u00e0 c\u00f3 ch\u1ee9c n\u0103ng gi\u1ed1ng nh\u01b0 m\u1ed9t chi\u1ebfc \u0103ng-ten si\u00eau nh\u1ecf \u0111\u1ec3 b\u1eaft \u00e1nh s\u00e1ng. Sau \u0111\u00f3 c\u00e1c nh\u00e0 khoa h\u1ecdc ph\u1ee7 th\u00eam m\u1ed9t l\u1edbp oxit nh\u00f4m \u0111\u1ec3 c\u00e1ch nhi\u1ec7t v\u00e0 m\u1ed9t l\u1edbp canxi trong su\u1ed1t ph\u00eda tr\u00ean c\u00f9ng \u0111\u1ec3 l\u00e0m c\u1ef1c d\u01b0\u01a1ng.<\/p>\n<p>C\u00e1c s\u00f3ng \u00e1nh s\u00e1ng khi \u0111i qua c\u00e1c \u1ed1ng nano carbon s\u1ebd t\u1ea1o ra nh\u1eefng electron t\u1ef1 do. V\u00e0 c\u00e1c m\u1ed1i n\u1ed1i c\u00e1ch \u0111i\u1ec7n \u1edf \u0111\u1ec9nh c\u1ee7a c\u00e1c \u1ed1ng nano s\u1ebd \u0111\u00f3ng vai tr\u00f2 nh\u01b0 ch\u1ec9nh l\u01b0u, \u0111\u00f3ng m\u1edf li\u00ean t\u1ee5c theo chu k\u1ef3 l\u00ean t\u1edbi femto gi\u00e2y, cho ph\u00e9p c\u00e1c electron t\u1ea1o ra b\u1edfi \u0103ngten di chuy\u1ec3n 1 chi\u1ec1u tr\u1edd l\u1ea1i \u0111i\u1ec7n c\u1ef1c \u1edf b\u00ean tr\u00ean.<\/p>\n<p><iframe loading=\"lazy\" title=\"First Optical Rectenna Converts Light to DC Current\" width=\"625\" height=\"352\" src=\"https:\/\/www.youtube.com\/embed\/kMdYVLtBtoY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p style=\"text-align: center;\"><em>Thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i tr\u1ef1c ti\u1ebfp t\u1eeb \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n.<\/em><\/p>\n<p>V\u1edbi ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i tr\u1ef1c ti\u1ebfp \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n m\u00e0 kh\u00f4ng c\u1ea7n th\u00f4ng qua nhi\u1ec1u b\u01b0\u1edbc ph\u1ee9c t\u1ea1p nh\u01b0 c\u00e1c t\u1ea5m pin n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi. Nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft: \u201cCh\u00fang ta \u0111\u00e3 c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c t\u1ebf b\u00e0o n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi ho\u00e0n to\u00e0n m\u1edbi, v\u1edbi hi\u1ec7u su\u1ea5t g\u1ea5p \u0111\u00f4i nh\u01b0ng gi\u00e1 th\u00e0nh ch\u1ec9 b\u1eb1ng 1\/10\u201d.<\/p>\n<p>Th\u00e1ch th\u1ee9c ti\u1ebfp theo c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc l\u00e0 ti\u1ebfp t\u1ee5c t\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p m\u1edbi n\u00e0y. V\u00e0 t\u00ecm c\u00e1ch \u00e1p d\u1ee5ng n\u00f3 v\u00e0o trong th\u1ef1c t\u1ebf. N\u1ebfu th\u00e0nh c\u00f4ng, \u0111\u00e2y c\u00f3 th\u1ec3 l\u00e0 ngu\u1ed3n \u0111i\u1ec7n n\u0103ng ho\u00e0n to\u00e0n m\u1edbi thay th\u1ebf c\u1ea3 c\u00e1c t\u1ea5m n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi hi\u1ec7n nay.<\/p>\n<p style=\"text-align: right;\"><em>Tham kh\u1ea3o: <strong>sciencealert<\/strong><\/em><\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n GenK.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p tr\u1ef1c ti\u1ebfp bi\u1ebfn \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n, kh\u00e1c v\u1edbi c\u00e1c t\u1ea5m n\u0103ng l\u01b0\u1ee3ng M\u1eb7t Tr\u1eddi tr\u01b0\u1edbc \u0111\u00e2y. C\u00e1c nh\u00e0 khoa h\u1ecdc M\u1ef9 \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 rectenna quang h\u1ecdc. V\u1edbi c\u1ea5u t\u1ea1o bao g\u1ed3m m\u1ed9t \u0103ng-ten, m\u1ed9t diode ch\u1ec9nh l\u01b0u v\u00e0 c\u00f3 kh\u1ea3 [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":3835,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-3832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=3832"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3832\/revisions"}],"predecessor-version":[{"id":3837,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/3832\/revisions\/3837"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/3835"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=3832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=3832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=3832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}