{"id":566,"date":"2024-02-06T00:37:13","date_gmt":"2024-02-05T17:37:13","guid":{"rendered":"http:\/\/phukien.ninhbinhweb.top\/chip-lam-tu-carbon-mo-ra-buoc-dot-pha-lich-su-va-chat-ban-dan-graphene-dau-tien-ra-doi\/"},"modified":"2024-02-06T13:31:12","modified_gmt":"2024-02-06T06:31:12","slug":"chip-lam-tu-carbon-mo-ra-buoc-dot-pha-lich-su-va-chat-ban-dan-graphene-dau-tien-ra-doi","status":"publish","type":"post","link":"https:\/\/khogiaodienmau.net\/dienthoai04\/chip-lam-tu-carbon-mo-ra-buoc-dot-pha-lich-su-va-chat-ban-dan-graphene-dau-tien-ra-doi\/","title":{"rendered":"Chip l\u00e0m t\u1eeb carbon m\u1edf ra b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 l\u1ecbch s\u1eed v\u00e0 ch\u1ea5t b\u00e1n d\u1eabn graphene \u0111\u1ea7u ti\u00ean ra \u0111\u1eddi"},"content":{"rendered":"

S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a chip d\u1ef1a tr\u00ean carbon \u0111\u00e3 m\u1edf ra m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 l\u1ecbch s\u1eed. Ng\u00e0y 3 th\u00e1ng 1, m\u1ed9t b\u00e0i b\u00e1o \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed Nature, c\u00f4ng b\u1ed1 s\u1ef1 ra \u0111\u1eddi c\u1ee7a ch\u1ea5t b\u00e1n d\u1eabn ch\u1ee9c n\u0103ng \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi l\u00e0m t\u1eeb graphene.<\/strong><\/p>\n

\n

Ph\u00e1t minh s\u00e1ng t\u1ea1o n\u00e0y l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn v\u1eefng ch\u1eafc h\u01b0\u1edbng t\u1edbi \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed graphene v\u00e0 m\u1edf ra nh\u1eefng kh\u1ea3 n\u0103ng m\u1edbi cho c\u00f4ng ngh\u1ec7 chip trong t\u01b0\u01a1ng lai. Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t v\u00e0 h\u01b0\u1edbng d\u1eabn b\u1edfi Vi\u1ec7n C\u00f4ng ngh\u1ec7 Georgia \u1edf Hoa K\u1ef3 v\u00e0 nh\u00f3m nghi\u00ean c\u1ee9u t\u1eeb \u0110\u1ea1i h\u1ecdc Thi\u00ean T\u00e2n \u1edf Trung Qu\u1ed1c \u0111\u00e3 \u0111\u1ea3m nh\u1eadn c\u00f4ng vi\u1ec7c nghi\u00ean c\u1ee9u v\u00e0 nghi\u00ean c\u1ee9u ch\u00ednh.<\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, ch\u1ea5t b\u00e1n d\u1eabn graphene n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng ngay t\u1eeb n\u1eeda cu\u1ed1i n\u0103m 2021, nh\u01b0ng sau h\u01a1n hai n\u0103m x\u00e1c minh v\u00e0 s\u1eeda \u0111\u1ed5i, ph\u1ea3i \u0111\u1ebfn \u0111\u1ea7u n\u0103m 2024 n\u00f3 m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 ch\u00ednh th\u1ee9c v\u1edbi th\u1ebf gi\u1edbi. Vi\u1ec7c xu\u1ea5t b\u1ea3n b\u00e0i b\u00e1o n\u00e0y \u0111\u00e3 thu h\u00fat s\u1ef1 ch\u00fa \u00fd r\u1ed9ng r\u00e3i v\u00e0 c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn s\u00f4i n\u1ed5i trong gi\u1edbi khoa h\u1ecdc v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n

\"Chip<\/p>\n

T\u1eeb l\u00e2u, v\u1eadt li\u1ec7u b\u00e1n d\u1eabn silicon c\u00f3 tr\u1eef l\u01b0\u1ee3ng d\u1ed3i d\u00e0o trong t\u1ef1 nhi\u00ean c\u0169ng nh\u01b0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 v\u00e0 \u0111i\u1ec7n tuy\u1ec7t v\u1eddi, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p b\u00e1n d\u1eabn. V\u1eadt li\u1ec7u b\u00e1n d\u1eabn silicon th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a c\u00e1c m\u1ea1ch t\u00edch h\u1ee3p, \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 co ng\u00f3t cao c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a chip.<\/p>\n

Tuy nhi\u00ean, v\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a c\u00f4ng ngh\u1ec7, k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn \u0111\u00e3 gi\u1ea3m xu\u1ed1ng c\u00f2n 10 nanomet, ti\u1ebfn g\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n c\u1ee7a \u0110\u1ecbnh lu\u1eadt Moore. \u1ede quy m\u00f4 n\u00e0y, v\u1eadt li\u1ec7u b\u00e1n d\u1eabn silicon kh\u00f3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhi\u1ec1u th\u00e1ch th\u1ee9c kh\u00e1c nhau v\u00e0 c\u00e1c b\u00f3ng b\u00e1n d\u1eabn \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb ch\u00fang d\u1ec5 b\u1ecb m\u1ea5t \u1ed5n \u0111\u1ecbnh ho\u1eb7c h\u1ecfng h\u00f3c.<\/p>\n

\u0110i\u1ec1u n\u00e0y l\u00e0 do khi k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u \u0111\u1ea1t \u0111\u1ebfn b\u01b0\u1edbc s\u00f3ng De Broglie c\u1ee7a electron th\u00ec l\u01b0\u1ee1ng t\u00ednh s\u00f3ng-h\u1ea1t c\u1ee7a electron s\u1ebd xu\u1ea5t hi\u1ec7n, electron h\u00e0nh x\u1eed gi\u1ed1ng s\u00f3ng h\u01a1n l\u00e0 h\u1ea1t v\u00e0 c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua h\u00e0ng r\u00e0o th\u1ebf n\u0103ng, g\u00e2y r\u00f2 r\u1ec9 ho\u1eb7c \u0111\u01b0\u1eddng h\u1ea7m l\u01b0\u1ee3ng t\u1eed, hi\u1ec7u \u1ee9ng hao m\u00f2n. Nh\u1eefng hi\u1ec7u \u1ee9ng n\u00e0y l\u00e0m t\u0103ng m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn v\u00e0 gi\u1ea3m \u0111\u1ed9 tin c\u1eady c\u1ee7a n\u00f3.<\/p>\n

Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y s\u1ebd h\u1ea1n ch\u1ebf s\u1ef1 co r\u00fat h\u01a1n n\u1eefa c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn v\u00e0 c\u0169ng s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a chip. V\u00ec v\u1eady, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u b\u00e1n d\u1eabn m\u1edbi c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a v\u1eadt li\u1ec7u b\u00e1n d\u1eabn silicon m\u00e0 v\u1eabn duy tr\u00ec ho\u1eb7c gi\u1ea3m gi\u00e1 th\u00e0nh, m\u1edf ra con \u0111\u01b0\u1eddng m\u1edbi cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ea1ch t\u00edch h\u1ee3p.<\/p>\n

\"Chip<\/p>\n

Trong qu\u00e1 tr\u00ecnh t\u00ecm ki\u1ebfm v\u1eadt li\u1ec7u b\u00e1n d\u1eabn m\u1edbi, graphene ch\u1eafc ch\u1eafn l\u00e0 m\u1ed9t \u1ee9ng c\u1eed vi\u00ean h\u1ea5p d\u1eabn. Graphene l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u bao g\u1ed3m m\u1ed9t l\u1edbp nguy\u00ean t\u1eed carbon \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp ch\u1eb7t ch\u1ebd th\u00e0nh c\u1ea5u tr\u00fac t\u1ed5 ong, n\u00f3 d\u1ed3i d\u00e0o v\u00e0 r\u1ebb ti\u1ec1n nh\u01b0 silicon v\u00e0 c\u00f3 nhi\u1ec1u \u0111\u1eb7c t\u00ednh \u0111\u00e1ng kinh ng\u1ea1c, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n cao, \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao, \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao… Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y khi\u1ebfn graphene d\u1ef1 ki\u1ebfn s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u1ecf h\u01a1n, nhanh h\u01a1n v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u01a1n, t\u1eeb \u0111\u00f3 th\u00fac \u0111\u1ea9y m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng trong c\u00f4ng ngh\u1ec7 b\u00e1n d\u1eabn.<\/p>\n

Tuy nhi\u00ean, \u1ee9ng d\u1ee5ng b\u00e1n d\u1eabn c\u1ee7a graphene l\u1ea1i di\u1ec5n ra theo m\u1ed9t c\u00e1ch kh\u00f4ng h\u1ec1 thu\u1eadn l\u1ee3i v\u00e0 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 k\u1ef9 thu\u1eadt l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1ch chu\u1ea9n b\u1ecb graphene ch\u1ea5t l\u01b0\u1ee3ng cao tr\u00ean di\u1ec7n r\u1ed9ng v\u00e0 c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh kho\u1ea3ng c\u00e1ch v\u00e0 n\u1ed3ng \u0111\u1ed9 ch\u1ea5t mang c\u1ee7a graphene.<\/p>\n

M\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a graphene l\u00e0 kh\u00f4ng th\u1ec3 \u0111i\u1ec1u khi\u1ec3n s\u1ef1 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n qua \u0111i\u1ec7n \u00e1p b\u00ean ngo\u00e0i ho\u1eb7c \u00e1nh s\u00e1ng nh\u01b0 c\u00e1c ch\u1ea5t b\u00e1n d\u1eabn th\u00f4ng th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong c\u00e1c m\u1ea1ch k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 c\u00e1c thi\u1ebft b\u1ecb quang \u0111i\u1ec7n t\u1eed. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c xu\u1ea5t b\u1ea3n b\u00e0i b\u00e1o n\u00e0y \u0111\u00e3 thu h\u00fat r\u1ea5t nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd, v\u00ec n\u00f3 th\u1ec3 hi\u1ec7n m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn s\u00e1ng t\u1ea1o \u0111\u1ed1i v\u1edbi graphene b\u00e1n d\u1eabn b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng li\u00ean k\u1ebft h\u00f3a h\u1ecdc gi\u1eefa graphene epiticular v\u00e0 cacbua silic.<\/p>\n

\"Chip<\/p>\n

Graphene epiticular d\u00f9ng \u0111\u1ec3 ch\u1ec9 m\u1ed9t l\u1edbp graphene ph\u00e1t tri\u1ec3n tr\u00ean tinh th\u1ec3 cacbua silic v\u00e0 b\u1ec1 m\u1eb7t d\u01b0\u1edbi c\u1ee7a n\u00f3 t\u1ea1o th\u00e0nh li\u00ean k\u1ebft c\u1ed9ng h\u00f3a tr\u1ecb v\u1edbi c\u00e1c nguy\u00ean t\u1eed cacbon trong cacbua silic. Theo c\u00e1ch n\u00e0y, cacbua silic c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn c\u1ea5u tr\u00fac d\u1ea3i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a graphene, khi\u1ebfn d\u1ea3i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a graphene b\u1ecb t\u00e1ch ra v\u00e0 t\u1ea1o th\u00e0nh kho\u1ea3ng tr\u1ed1ng.<\/p>\n

Kho\u1ea3ng c\u00e1ch n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111o l\u00e0 x\u1ea5p x\u1ec9 0,6 electron volt, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu c\u00e1c electron trong graphene mu\u1ed1n nh\u1ea3y t\u1eeb v\u00f9ng h\u00f3a tr\u1ecb sang v\u00f9ng d\u1eabn, ch\u00fang c\u1ea7n ph\u1ea3i v\u01b0\u1ee3t qua s\u1ef1 ch\u00eanh l\u1ec7ch n\u0103ng l\u01b0\u1ee3ng 0,6 electron volt, \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n m\u1ea1ch d\u00f2ng \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c. Kho\u1ea3ng tr\u1ed1ng n\u00e0y x\u1ea3y ra do c\u00e1c electron \u03c0 ban \u0111\u1ea7u \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n t\u1ef1 do trong graphene b\u1ecb h\u1ea1n ch\u1ebf b\u1edfi cacbua silic, m\u1ea5t \u0111i t\u00ednh ch\u1ea5t kim lo\u1ea1i v\u00e0 tr\u1edf th\u00e0nh ch\u1ea5t c\u00e1ch \u0111i\u1ec7n, ngh\u0129a l\u00e0 n\u00f3 kh\u00f4ng c\u00f2n d\u1eabn \u0111i\u1ec7n n\u1eefa.<\/p>\n

V\u1eady l\u00e0m th\u1ebf n\u00e0o ch\u00fang ta c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c l\u1ea1i \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a n\u00f3? C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p, m\u1ed9t l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t l\u01b0\u1ee3ng n\u0103ng l\u01b0\u1ee3ng nh\u1ea5t \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0 \u00e1nh s\u00e1ng ho\u1eb7c s\u01b0\u1edfi \u1ea5m, \u0111\u1ec3 cho ph\u00e9p c\u00e1c electron c\u00f3 \u0111\u1ee7 \u0111\u1ed9ng n\u0103ng \u0111\u1ec3 v\u01b0\u1ee3t qua h\u00e0ng r\u00e0o n\u0103ng l\u01b0\u1ee3ng 0,6 volt electron v\u00e0 chuy\u1ec3n t\u1eeb d\u1ea3i h\u00f3a tr\u1ecb sang d\u1ea3i d\u1eabn. C\u00e1ch th\u1ee9 hai l\u00e0 pha t\u1ea1p c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c, t\u1ea1o th\u00e0nh n\u1ed3ng \u0111\u1ed9 ch\u1ea5t mang cao v\u00e0 l\u00e0m thay \u0111\u1ed5i c\u1ea5u tr\u00fac \u0111i\u1ec7n t\u1eed c\u1ee7a graphene. Trong graphene epiticular n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch k\u00edch th\u00edch oxy, t\u1eeb \u0111\u00f3 l\u00e0m cho graphene d\u1eabn \u0111i\u1ec7n v\u00e0 h\u00ecnh th\u00e0nh ch\u1ea5t b\u00e1n d\u1eabn lo\u1ea1i P.<\/p>\n

\"Chip<\/p>\n

Ch\u1ea5t b\u00e1n d\u1eabn lo\u1ea1i P c\u00f3 ngh\u0129a l\u00e0 c\u00f3 nhi\u1ec1u l\u1ed7 tr\u1ed1ng t\u00edch \u0111i\u1ec7n d\u01b0\u01a1ng trong v\u00f9ng h\u00f3a tr\u1ecb, nh\u1eefng l\u1ed7 n\u00e0y c\u00f3 th\u1ec3 thu h\u00fat c\u00e1c electron nh\u1ea3y v\u00e0o trong n\u00f3, t\u1eeb \u0111\u00f3 t\u1ea1o th\u00e0nh d\u00f2ng \u0111i\u1ec7n. \u1ede d\u1ea1ng b\u00f3ng b\u00e1n d\u1eabn hi\u1ec7u \u1ee9ng tr\u01b0\u1eddng (FET), c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u th\u1ef1c s\u1ef1 \u0111\u00e3 \u0111o graphene b\u00e1n d\u1eabn n\u00e0y v\u00e0 nh\u1eadn th\u1ea5y r\u1eb1ng \u0111\u1ed9 linh \u0111\u1ed9ng c\u1ee7a n\u00f3 l\u00ean t\u1edbi 5.000 cm vu\u00f4ng m\u1ed7i gi\u00e2y, g\u1ea5p 10 l\u1ea7n so v\u1edbi silicon v\u00e0 g\u1ea5p 20 l\u1ea7n t\u1ed1c \u0111\u1ed9 cao nh\u1ea5t c\u1ee7a c\u00e1c lo\u1ea1i b\u00f3ng b\u00e1n d\u1eabn hai chi\u1ec1u kh\u00e1c.<\/p>\n

T\u00ednh di \u0111\u1ed9ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a c\u00e1c h\u1ea1t t\u1ea3i \u0111i\u1ec7n, \u0111\u1ed9 linh \u0111\u1ed9ng c\u00e0ng cao ngh\u0129a l\u00e0 c\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i r\u1ea5t nhanh v\u00e0 ti\u00eau th\u1ee5 \u00edt n\u0103ng l\u01b0\u1ee3ng h\u01a1n. H\u01a1n n\u1eefa, v\u00ec l\u00e0 v\u1eadt li\u1ec7u hai chi\u1ec1u n\u00ean n\u00f3 c\u0169ng c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf v\u00e0 t\u00ednh linh ho\u1ea1t v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc, c\u00f3 th\u1ec3 gi\u00fap thi\u1ebft b\u1ecb nh\u1ecf h\u01a1n v\u00e0 linh ho\u1ea1t h\u01a1n trong thi\u1ebft k\u1ebf.<\/p>\n

\u01afu \u0111i\u1ec3m c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 kh\u00f4ng y\u00eau c\u1ea7u chuy\u1ec3n graphene sang c\u00e1c ch\u1ea5t n\u1ec1n kh\u00e1c m\u00e0 tr\u1ef1c ti\u1ebfp th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh b\u00e1n d\u1eabn graphene tr\u00ean cacbua silic, do \u0111\u00f3 tr\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c khuy\u1ebft t\u1eadt v\u00e0 \u00f4 nhi\u1ec5m c\u00f3 th\u1ec3 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh chuy\u1ec3n giao v\u00e0 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t cao c\u1ee7a graphene.<\/p>\n

\"Chip<\/p>\n

Ngo\u00e0i ra, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f2n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc v\u00f9ng c\u1ea5m c\u1ee7a graphene b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i h\u01b0\u1edbng m\u1eb7t ph\u1eb3ng tinh th\u1ec3 c\u1ee7a cacbua silic, t\u1eeb \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c t\u00ednh ch\u1ea5t b\u00e1n d\u1eabn kh\u00e1c nhau. Tuy nhi\u00ean, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u0169ng c\u00f3 nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 \u0111\u00f2i h\u1ecfi qu\u00e1 tr\u00ecnh l\u1eafng \u0111\u1ecdng h\u01a1i h\u00f3a h\u1ecdc \u1edf nhi\u1ec7t \u0111\u1ed9 cao, gi\u00e1 th\u00e0nh cacbua silic cao h\u01a1n so v\u1edbi ch\u1ea5t n\u1ec1n silicon th\u00f4ng th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed v\u00e0 kh\u00f3 kh\u0103n trong vi\u1ec7c s\u1ea3n xu\u1ea5t graphene. Do \u0111\u00f3, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u1ed1i \u01b0u h\u00f3a v\u00e0 c\u1ea3i ti\u1ebfn h\u01a1n n\u1eefa \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng v\u00e0 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a graphene, \u0111\u1ed3ng th\u1eddi gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a graphene nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng graphene quy m\u00f4 l\u1edbn.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a chip d\u1ef1a tr\u00ean carbon \u0111\u00e3 m\u1edf ra m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 l\u1ecbch s\u1eed. Ng\u00e0y 3 th\u00e1ng 1, m\u1ed9t b\u00e0i b\u00e1o \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed Nature, c\u00f4ng b\u1ed1 s\u1ef1 ra \u0111\u1eddi c\u1ee7a ch\u1ea5t b\u00e1n d\u1eabn ch\u1ee9c n\u0103ng \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi l\u00e0m t\u1eeb graphene. Ph\u00e1t minh s\u00e1ng t\u1ea1o n\u00e0y…<\/p>\n","protected":false},"author":1,"featured_media":530,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/posts\/566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/comments?post=566"}],"version-history":[{"count":1,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/posts\/566\/revisions"}],"predecessor-version":[{"id":857,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/posts\/566\/revisions\/857"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/media\/530"}],"wp:attachment":[{"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/media?parent=566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/categories?post=566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/khogiaodienmau.net\/dienthoai04\/wp-json\/wp\/v2\/tags?post=566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}