![\"alt\"](\"http:\/\/khoahocvacongnghevietnam.com.vn\/images\/stories\/thang-11-2017\/2011-thietke.jpg\")
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Nh\u00e0 khoa h\u1ecdc Imran Zada v\u00e0 c\u1ed9ng s\u1ef1 t\u1ea1i \u0110\u1ea1i h\u1ecdc Th\u01b0\u1ee3ng H\u1ea3i Jiao Tong \u1edf Trung Qu\u1ed1c \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u bao ph\u1ee7 ch\u1ed1ng ph\u1ea3n quang hi\u1ec7u qu\u1ea3, c\u00f3 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t pin m\u1eb7t tr\u1eddi, v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t t\u00e0ng h\u00ecnh, v\u1eadt li\u1ec7u ch\u1ed1ng g\u1ec9 v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng quang h\u1ecdc kh\u00e1c.<\/p>\n
Trong b\u00e0i b\u00e1o m\u1edbi \u0111\u00e2y \u0111\u01b0\u1ee3c \u0111\u0103ng t\u1ea3i tr\u00ean t\u1ea1p ch\u00ed Applied Physics Letters, nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft, thi\u1ebft k\u1ebf c\u1ee7a h\u1ecd d\u1ef1a tr\u00ean h\u00ecnh d\u00e1ng c\u00e1nh c\u1ee7a ve s\u1ea7u. C\u00e1c chuy\u00ean gia gi\u1ea3i th\u00edch: Ch\u00ednh c\u1ea5u tr\u00fac nano \u0111\u1eb7c bi\u1ec7t c\u1ee7a \u0111\u00f4i c\u00e1nh ve s\u1ea7u \u0111\u00e3 mang l\u1ea1i cho ch\u00fang \u0111\u1eb7c t\u00ednh ch\u1ed1ng ph\u1ea3n x\u1ea1 \u0111\u1eb7c bi\u1ec7t, gi\u00fap truy\u1ec1n ho\u1eb7c h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c \u1edf m\u1ee9c \u0111\u1ed9 g\u1ea7n \u0111\u1ea1t 100%. \u0110\u1ed1i v\u1edbi pin m\u1eb7t tr\u1eddi, \u0111\u1eb7c t\u00ednh ch\u1ed1ng ph\u1ea3n x\u1ea1 \u0111\u00f3ng vai tr\u00f2 h\u1ebft s\u1ee9c quan tr\u1ecdng, n\u00f3 cho ph\u00e9p pin kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng hi\u1ec7u qu\u1ea3 h\u01a1n, hi\u1ec7u n\u0103ng t\u1ed5ng th\u1ec3 cung nh\u1edd \u0111\u00f3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n
D\u1ef1a tr\u00ean m\u00f4 h\u00ecnh c\u1ea5u tr\u00fac nano c\u1ee7a \u0111\u00f4i c\u00e1nh c\u1ee7a ve s\u1ea7u (\u0111\u01b0\u1ee3c l\u00e0m ch\u1ee7 y\u1ebfu b\u1eb1ng chitin), c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 s\u1ea3n xu\u1ea5t m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t b\u1eb1ng silic dioxit (th\u01b0\u1eddng g\u1ecdi l\u00e0 b\u1ed9t Silica hay b\u1ed9t Th\u1ea1ch Anh – m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u r\u1ebb ti\u1ec1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c trong s\u1ea3n xu\u1ea5t c\u1eeda s\u1ed5 v\u00e0 \u1ed1ng k\u00ednh m\u00e1y \u1ea3nh). \u0110\u1ea7u ti\u00ean, h\u1ecd th\u1ef1c hi\u1ec7n ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd c\u00e1nh ve sinh h\u1ecdc trong dung d\u1ecbch c\u00f3 ch\u1ee9a silic dioxit, sau \u0111\u00f3, s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao, v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0m c\u1ee9ng \u0111\u00f4i c\u00e1nh nh\u1eb1m t\u00e1ch ch\u00fang ra kh\u1ecfi v\u1eadt li\u1ec7u silic dioxit. Th\u00f4ng qua c\u00e1c b\u01b0\u1edbc n\u00eau tr\u00ean, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ebf t\u1ea1o lo\u1ea1i v\u1eadt li\u1ec7u bao ph\u1ee7 sinh h\u1ecdc silic dioxit v\u1edbi c\u00f9ng m\u1ed9t m\u00f4 h\u00ecnh c\u1ea5u tr\u00fac nano c\u1ee7a c\u00e1nh ve s\u1ea7u.<\/p>\n
\u0110\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u Wang Zhang, thu\u1ed9c \u0110\u1ea1i h\u1ecdc Shanghai Jiao Tong chia s\u1ebb: C\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i ch\u1ee9ng minh r\u1eb1ng v\u1eadt li\u1ec7u silic dioxit v\u1edbi c\u1ea5u tr\u00fac ch\u1ed1ng ph\u1ea3n quang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o tr\u1ef1c ti\u1ebfp t\u1eeb c\u00e1nh ve s\u1ea7u b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng k\u1ef9 thu\u1eadt si\u00eau \u00e2m hay ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc sol-gel \u0111\u01a1n gi\u1ea3n v\u00e0 kh\u00f4ng t\u1ed1n k\u00e9m. V\u1eadt li\u1ec7u m\u1edbi th\u1ec3 hi\u1ec7n t\u00ednh n\u0103ng ch\u1ed1ng ph\u1ea3n quang hi\u1ec7u qu\u1ea3 cao trong d\u1ea3i \u00e1nh s\u00e1ng kh\u1ea3 ki\u1ebfn d\u01b0\u1edbi g\u00f3c t\u1edbi r\u1ed9ng.<\/p>\n
Th\u1eed nghi\u1ec7m cho th\u1ea5y, \u0111\u1eb7c t\u00ednh ch\u1ed1ng ph\u1ea3n x\u1ea1 c\u1ee7a v\u1eadt li\u1ec7u bao ph\u1ee7 m\u1edbi kh\u00f4ng hi\u1ec7u qu\u1ea3 khi n\u00f3 ch\u1ec9 h\u1ea5p th\u1ee5 \u00edt nh\u1ea5t l\u00e0 0,3% \u00e1nh s\u00e1ng kh\u1ea3 ki\u1ebfn. Tuy nhi\u00ean, \u0111\u1eb7c t\u00ednh ph\u1ea3n x\u1ea1 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o g\u00f3c t\u1edbi c\u1ee7a \u00e1nh s\u00e1ng, v\u00e0 t\u0103ng l\u00ean 3,3% khi g\u00f3c t\u1edbi c\u1ee7a \u00e1nh s\u00e1ng t\u0103ng l\u00ean. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u gi\u1ea3i th\u00edch r\u1eb1ng t\u00ednh ch\u1ea5t ch\u1ed1ng ph\u1ea3n quang ph\u00e1t huy hi\u1ec7u qu\u1ea3 l\u00e0 nh\u1edd m\u00f4 h\u00ecnh c\u1ea5u tr\u00fac nano c\u1ee7a c\u00e1nh ve, do k\u00edch th\u01b0\u1edbc c\u1ea5u tr\u00fac nano nh\u1ecf h\u01a1n b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng. M\u00f4 h\u00ecnh n\u00e0y t\u1ea1o ra m\u1ed9t m\u1eb7t nghi\u00eang h\u1ec7 s\u1ed1 kh\u00fac x\u1ea1 li\u00ean t\u1ee5c b\u1ecb chia \u0111\u1ed9 t\u1eeb kh\u00f4ng gian \u0111\u1ebfn b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt li\u1ec7u, t\u1ea1o kh\u00f4ng gian cho ch\u00f9m tia s\u00e1ng truy\u1ec1n t\u1edbi v\u1eadt li\u1ec7u v\u00e0 ng\u0103n c\u1ea3n ch\u00fang ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i.<\/p>\n
M\u1eb7c d\u00f9, v\u1ec1 b\u1ea3n ch\u1ea5t, c\u00e1nh ve l\u00e0 v\u1eadt li\u1ec7u si\u00eau k\u1ecb n\u01b0\u1edbc nh\u01b0ng c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u cho bi\u1ebft \u0111\u1eb7c t\u00ednh n\u00e0y ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u silic dioxit b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i n\u00f3 th\u00e0nh v\u1eadt li\u1ec7u th\u1ea5m n\u01b0\u1edbc. Li\u00ean k\u1ebft hydro v\u1edbi c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc d\u1ec5 d\u00e0ng h\u00ecnh th\u00e0nh tr\u00ean b\u1ec1 m\u1eb7t \u01b0a n\u01b0\u1edbc. \u0110\u1eb7c t\u00ednh m\u1edbi cung v\u1edbi t\u00ednh ch\u1ea5t ch\u1ed1ng ph\u1ea3n x\u1ea1 c\u1ee7a v\u1eadt li\u1ec7u gi\u00fap h\u1ea1n ch\u1ebf hi\u1ec7n t\u01b0\u1ee3ng t\u1ea1o th\u00e0nh s\u01b0\u01a1ng m\u00f9, cho th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng c\u1ee7a v\u1eadt li\u1ec7u quang h\u1ecdc c\u00f3 ch\u1ee9c n\u0103ng ch\u1ed1ng s\u01b0\u01a1ng m\u00f9 v\u00e0 t\u1ef1 l\u00e0m s\u1ea1ch. Nh\u00f3m chuy\u00ean gia cho bi\u1ebft h\u1ecd \u0111ang c\u00f3 k\u1ebf ho\u1ea1ch nghi\u00ean c\u1ee9u k\u1ef9 h\u01a1n n\u1eefa nh\u1eefng lo\u1ea1i \u1ee9ng d\u1ee5ng n\u00e0y trong t\u01b0\u01a1ng lai.<\/p>\n
Zhang cho bi\u1ebft: Trong t\u01b0\u01a1ng lai, nghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i h\u01b0\u1edbng t\u1edbi ch\u1ebf t\u1ea1o c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u c\u1ea5u tr\u00fac ph\u1ea3n quang c\u00f3 \u0111\u1ed9 kh\u00fac x\u1ea1 cao nh\u1eb1m t\u00ecm hi\u1ec3u \u0111\u1eb7c t\u00ednh \u0111a ch\u1ee9c n\u0103ng c\u1ee7a ch\u00fang, nh\u01b0 ph\u1ea3n quang, ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n v\u00e0 si\u00eau th\u1ee7y ng\u00e2n.<\/p>\n
(Vista)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" Nh\u00e0 khoa h\u1ecdc Imran Zada v\u00e0 c\u1ed9ng s\u1ef1 t\u1ea1i \u0110\u1ea1i h\u1ecdc Th\u01b0\u1ee3ng H\u1ea3i Jiao Tong \u1edf Trung Qu\u1ed1c \u0111\u00e3 ch\u1ebf t\u1ea1o th\u00e0nh c\u00f4ng m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u bao ph\u1ee7 ch\u1ed1ng ph\u1ea3n quang hi\u1ec7u qu\u1ea3, c\u00f3 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c s\u1ea3n xu\u1ea5t pin m\u1eb7t tr\u1eddi, v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t t\u00e0ng h\u00ecnh, v\u1eadt […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-7828","post","type-post","status-publish","format-standard","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7828","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\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=7828"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7828\/revisions"}],"predecessor-version":[{"id":7829,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/7828\/revisions\/7829"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=7828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=7828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=7828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}