K\u1ef9 thu\u1eadt nanomet xu\u1ea5t hi\u1ec7n v\u00e0o nh\u1eefng n\u0103m 80 c\u1ee7a th\u1ebf k\u1ef7 XX, do nh\u1eefng t\u00ednh ch\u1ea5t k\u1ef3 l\u1ea1 c\u1ee7a v\u1eadt li\u1ec7u nanomet, l\u00e0 m\u1ed9t trang m\u1edbi trong k\u1ef9 thu\u1eadt cao.<\/p>\n\n\n\n
Tr\u01b0\u1edbc h\u1ebft n\u00f3i v\u1ec1 m\u00e0u s\u1eafc: B\u1ea5t k\u1ef3 l\u00e0 kim lo\u1ea1i hay g\u1ed1m, khi \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i b\u1ed9t m\u1ecbn nanomet \u0111\u1ec1u c\u00f3 m\u00e0u \u0111en. Hai l\u00e0 khi kim lo\u1ea1i ch\u1ebf t\u1ea1o th\u00e0nh v\u1eadt li\u1ec7u nanomet, \u0111\u1ed9 c\u1ee9ng s\u1ebd t\u0103ng cao h\u01a1n nhi\u1ec1u l\u1ea7n, t\u1eeb tr\u1ea1ng th\u00e1i d\u1eabn \u0111i\u1ec7n t\u1ed1t tr\u1edf th\u00e0nh c\u00e1ch \u0111i\u1ec7n. \u0110\u1ed3 g\u1ed1m \u1edf tr\u1ea1ng th\u00e1i nanomet kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c t\u00ednh gi\u00f2n v\u1ed1n c\u00f3 m\u00e0 tr\u1edf n\u00ean b\u1ec1n ch\u1eafc, \u0111\u1eadp m\u1ea1nh c\u0169ng kh\u00f4ng v\u1ee1. Ngo\u00e0i ra nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u nanomet c\u00e0ng gi\u1ea3m nhi\u1ec1u n\u1ebfu \u0111\u01b0\u1eddng k\u00ednh h\u1ea1t c\u00e0ng b\u00e9. T\u00ednh d\u1eabn \u0111i\u1ec7n, t\u1eeb t\u00ednh, n\u1ed9i \u1ee9ng l\u1ef1c c\u0169ng thay \u0111\u1ed5i r\u1ea5t nhi\u1ec1u \u1edf v\u1eadt li\u1ec7u nanomet. V\u00ed d\u1ee5 s\u1eaft \u1edf tr\u1ea1ng th\u00e1i nanomet c\u00f3 \u1ee9ng l\u1ef1c ch\u1ed1ng \u0111\u1ee9t g\u00e3y t\u0103ng g\u1ea5p 12 l\u1ea7n so v\u1edbi s\u1eaft th\u01b0\u1eddng. V\u00ec c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m nh\u01b0 v\u1eady n\u00ean v\u1eadt li\u1ec7u nanomet c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf h\u1ebft s\u1ee9c \u0111\u1eb7c bi\u1ec7t. D\u00f9ng v\u1eadt li\u1ec7u t\u1eeb t\u00ednh nanomet c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c b\u0103ng t\u1eeb c\u00f3 m\u1eadt \u0111\u1ed9 cao. Thu\u1ed1c \u1edf tr\u1ea1ng th\u00e1i nanomet c\u00f3 th\u1ec3 ti\u00eam tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e1u, c\u00f3 th\u1ec3 \u0111\u01b0a tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c m\u1ea1ch m\u00e1u c\u00f3 \u0111\u01b0\u1eddng k\u00ednh r\u1ea5t b\u00e9 m\u1ed9t c\u00e1ch thu\u1eadn ti\u1ec7n. Ch\u1ea5t x\u00fac t\u00e1c \u1edf tr\u1ea1ng th\u00e1i nanomet \u0111\u01b0a v\u00e0o trong x\u0103ng d\u1ea7u c\u00f3 th\u1ec3 t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong l\u00ean nhi\u1ec1u l\u1ea7n\u2026<\/p>\n\n\n\n
Nh\u01b0ng vi\u1ec7c s\u1ea3n xu\u1ea5t v\u1eadt li\u1ec7u nanomet c\u00f2n g\u1eb7p nhi\u1ec1u kh\u00f3 kh\u0103n v\u00ec d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n r\u1ea5t kh\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c tr\u1ea1ng th\u00e1i b\u1ed9t si\u00eau m\u1ecbn. Hi\u1ec7n t\u1ea1i ng\u01b0\u1eddi ta d\u00f9ng m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd ho\u1eb7c ho\u00e1 h\u1ecdc \u0111\u1eb7c bi\u1ec7t m\u1edbi c\u00f3 th\u1ec3 gia c\u00f4ng v\u00e0 t\u1ea1o \u0111\u01b0\u1ee3c nh\u1eefng h\u1ea1t m\u1ecbn c\u1ee1 nanomet. V\u00ed d\u1ee5 v\u1edbi kim lo\u1ea1i, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 cho kim lo\u1ea1i v\u00e0o b\u00ecnh k\u00edn ch\u1ee9a \u0111\u1ea7y kh\u00ed tr\u01a1 heli, gia nhi\u1ec7t cho kim lo\u1ea1i bi\u1ebfn th\u00e0nh h\u01a1i. L\u00e0m l\u1ea1nh, h\u01a1i kim lo\u1ea1i trong b\u1ea7u kh\u00ed tr\u01a1 heli s\u1ebd th\u00e0nh kh\u00f3i kim lo\u1ea1i \u0111en nh\u01b0 m\u1ed3 h\u00f3ng, ta c\u00f3 \u0111\u01b0\u1ee3c b\u1ed9t m\u1ecbn kim lo\u1ea1i nanomet, \u00e9p th\u00e0nh m\u00e0ng, x\u1eed l\u00fd b\u1eb1ng thi\u00eau k\u1ebft, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o linh ki\u1ec7n b\u1eb1ng v\u1eadt li\u1ec7u nanomet. C\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f2n d\u00f9ng tia laze \u0111\u1ec3 cho bay h\u01a1i, ng\u01b0ng k\u1ebft ch\u1ebf \u0111\u01b0\u1ee3c lo\u1ea1i g\u1ed1m t\u1eeb nh\u1eefng h\u1ea1t c\u00f3 k\u00edch th\u01b0\u1edbc nanomet. \u0110\u01b0\u01a1ng nhi\u00ean c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ebf t\u1ea1o n\u00e0y c\u00f3 gi\u00e1 th\u00e0nh cao, r\u1ea5t h\u1ea1n ch\u1ebf cho vi\u1ec7c \u00e1p d\u1ee5ng trong quy m\u00f4 l\u1edbn. \u0110\u1ec3 c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c v\u00e0o c\u00e1c l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt c\u1ea7n ph\u1ea3i v\u01b0\u1ee3t qua kh\u00f4ng \u00edt kh\u00f3 kh\u0103n.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: V\u1eadt li\u1ec7u nanomet; B\u1ed9t si\u00eau m\u1ecbn.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
K\u1ef9 thu\u1eadt nanomet xu\u1ea5t hi\u1ec7n v\u00e0o nh\u1eefng n\u0103m 80 c\u1ee7a th\u1ebf k\u1ef7 XX, do nh\u1eefng t\u00ednh ch\u1ea5t k\u1ef3 l\u1ea1 c\u1ee7a v\u1eadt li\u1ec7u nanomet, l\u00e0 m\u1ed9t trang m\u1edbi trong k\u1ef9 thu\u1eadt cao. Tr\u01b0\u1edbc h\u1ebft n\u00f3i v\u1ec1 m\u00e0u s\u1eafc: B\u1ea5t k\u1ef3 l\u00e0 kim lo\u1ea1i hay g\u1ed1m, khi \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i b\u1ed9t m\u1ecbn nanomet \u0111\u1ec1u c\u00f3 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-7910","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7910","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7910"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7910\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}