{"id":31046,"date":"2021-12-09T14:54:00","date_gmt":"2021-12-09T07:54:00","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=31046"},"modified":"2022-02-11T15:10:53","modified_gmt":"2022-02-11T08:10:53","slug":"te-bao-pin-mat-troi-sieu-mong-perovskites-2d-co-hieu-suat-quang-dien-cao-va-on-dinh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/te-bao-pin-mat-troi-sieu-mong-perovskites-2d-co-hieu-suat-quang-dien-cao-va-on-dinh\/","title":{"rendered":"T\u1ebf b\u00e0o pin m\u1eb7t tr\u1eddi si\u00eau m\u1ecfng perovskites 2D c\u00f3 hi\u1ec7u su\u1ea5t quang \u0111i\u1ec7n cao v\u00e0 \u1ed5n \u0111\u1ecbnh"},"content":{"rendered":"\n

C\u00e1c k\u1ef9 s\u01b0 thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Rice, M\u1ef9 \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n m\u1edbi trong thi\u1ebft k\u1ebf pin m\u1eb7t tr\u1eddi m\u1ecfng c\u1ea5p nguy\u00ean t\u1eed l\u00e0m b\u1eb1ng perovskite b\u00e1n d\u1eabn, n\u00e2ng cao hi\u1ec7u su\u1ea5t nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecdi v\u1edbi t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng.<\/strong><\/h2>\n\n\n\n
\"\"\/<\/figure><\/div>\n\n\n\n

M\u1ed9t l\u1edbp ph\u1ee7 hai chi\u1ec1u h\u1ee3p ch\u1ea5t perovskite l\u00e0 c\u01a1 s\u1edf cho m\u1ed9t pin m\u1eb7t tr\u1eddi hi\u1ec7u qu\u1ea3 ch\u1ed1ng ch\u1ecdi t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng. C\u00e1c k\u1ef9 s\u01b0 t\u1ea1i \u0110\u1ea1i h\u1ecdc Rice \u0111\u00e3 n\u00e2ng hi\u1ec7u su\u1ea5t quang \u0111i\u1ec7n<\/a> c\u1ee7a perovskites 2D l\u00ean t\u1edbi 18%. \u1ea2nh: Jeff Fitlow \/ \u0110\u1ea1i h\u1ecdc Rice<\/em><\/p>\n\n\n\n

Ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a PGS h\u00f3a h\u1ecdc k\u1ef9 thu\u1eadt nano Aditya Mohite, thu\u1ed9c Tr\u01b0\u1eddng K\u1ef9 thu\u1eadt George R. Brown, \u0110\u1ea1i h\u1ecdc Rice ph\u00e1t hi\u1ec7n r\u1eb1ng, \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi thu h\u1eb9p kh\u00f4ng gian gi\u1eefa c\u00e1c l\u1edbp nguy\u00ean t\u1eed trong perovskite 2D, cho ph\u00e9p t\u0103ng hi\u1ec7u su\u1ea5t quang \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u l\u00ean t\u1edbi 18%, m\u1ed9t b\u01b0\u1edbc nh\u1ea3y v\u1ecdt \u0111\u00e1ng kinh ng\u1ea1c.<\/p>\n\n\n\n

PGS Mohite cho bi\u1ebft, trong 10 n\u0103m, hi\u1ec7u qu\u1ea3 c\u1ee7a perovskites t\u0103ng v\u1ecdt t\u1eeb 3% l\u00ean h\u01a1n 25%. Nh\u1eefng ch\u1ea5t b\u00e1n d\u1eabn kh\u00e1c c\u1ea7n kho\u1ea3ng 60 n\u0103m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 n\u00e0y. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean T\u1ea1p ch\u00ed Nature Nanotechnology.<\/p>\n\n\n\n

Perovskites l\u00e0 nh\u1eefng h\u1ee3p ch\u1ea5t c\u00f3 m\u1ea1ng tinh th\u1ec3 h\u00ecnh kh\u1ed1i gi\u1ed1ng nhau v\u00e0 l\u00e0 v\u1eadt li\u1ec7u thu \u00e1nh s\u00e1ng hi\u1ec7u qu\u1ea3 cao. Perovskite hi\u1ec7u qu\u1ea3 trong chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi th\u00e0nh n\u0103ng l\u01b0\u1ee3ng, nh\u01b0ng \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 \u0111\u1ed9 \u1ea9m nhanh ch\u00f3ng l\u00e0m suy gi\u1ea3m v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Theo PGS Mohite, pin m\u1eb7t tr\u1eddi d\u1ef1 ki\u1ebfn ho\u1ea1t \u0111\u1ed9ng trong 20 \u0111\u1ebfn 25 n\u0103m, c\u00e1c t\u1ebf b\u00e0o pin m\u1eb7t tr\u1eddi perovskite r\u1ea5t hi\u1ec7u qu\u1ea3 nh\u01b0ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh. Nh\u1eefng t\u1ebf b\u00e0o pin perovskite 2D c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh r\u1ea5t cao nh\u01b0ng kh\u00f4ng \u0111\u1ee7 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 l\u1eafp \u0111\u1eb7t tr\u00ean m\u00e1i nh\u00e0. <\/p>\n\n\n\n

C\u00e1c khoa h\u1ecdc \u0111\u00e3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c, trong m\u1ed9t s\u1ed1 perovskite 2D nh\u1ea5t \u0111\u1ecbnh, \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi thu h\u1eb9p m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 kh\u00f4ng gian gi\u1eefa c\u00e1c nguy\u00ean t\u1eed, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

\"\"\/<\/figure><\/div>\n\n\n\n

TS Siraj Sidhik chu\u1ea9n b\u1ecb quay ph\u1ee7 m\u1ed9t l\u1edbp n\u1ec1n b\u1eb1ng h\u1ee3p ch\u1ea5t, khi \u0111\u00f4ng \u0111\u1eb7c th\u00e0nh perovskite 2D. \u1ea2nh: Jeff Fitlow \/ \u0110\u1ea1i h\u1ecdc Rice<\/em><\/p>\n\n\n\n

Nh\u00f3m nghi\u00ean c\u1ee9u nh\u1eadn th\u1ea5y, khi chi\u1ebfu s\u00e1ng v\u1eadt li\u1ec7u, d\u01b0\u1eddng nh\u01b0 v\u1eadt li\u1ec7u b\u1ecb n\u00e9n l\u1ea1i, li\u00ean k\u1ebft c\u00e1c l\u1edbp l\u1ea1i v\u1edbi nhau v\u00e0 t\u0103ng c\u01b0\u1eddng v\u1eadn chuy\u1ec3n \u0111i\u1ec7n t\u00edch theo. C\u00e1c nh\u00e0 khoa h\u1ecdc c\u0169ng ph\u00e1t hi\u1ec7n vi\u1ec7c \u0111\u1eb7t m\u1ed9t l\u1edbp cation h\u1eefu c\u01a1 gi\u1eefa Iodide \u1edf tr\u00ean c\u00f9ng v\u00e0 ch\u00ec \u1edf d\u01b0\u1edbi c\u00f9ng t\u0103ng c\u01b0\u1eddng s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c l\u1edbp.<\/p>\n\n\n\n

C\u1ea3 hai k\u1ebft qu\u1ea3 th\u1ef1c t\u1ebf v\u00e0 m\u00f4 ph\u1ecfng \u0111\u1ec1u cho th\u1ea5y, sau 10 ph\u00fat \u0111\u01b0\u1ee3c chi\u1ebfu \u00e1nh s\u00e1ng m\u00e1y m\u00f4 ph\u1ecfng \u00e1nh s\u00e1ng \u1edf c\u01b0\u1eddng \u0111\u1ed9 1 m\u1eb7t tr\u1eddi, c\u00e1c t\u1ea5m perovskite 2D co l\u1ea1i 0,4% d\u1ecdc theo chi\u1ec1u d\u00e0i c\u1ee7a ch\u00fang v\u00e0 kho\u1ea3ng 1% chi\u1ec1u d\u00e0y t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi. Hi\u1ec7u qu\u1ea3 c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c trong 1 ph\u00fat d\u01b0\u1edbi c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng 5 m\u1eb7t tr\u1eddi.<\/p>\n\n\n\n

S\u1ef1 co l\u1ea1i 1% n\u00e0y trong kho\u1ea3ng c\u00e1ch m\u1ea1ng tinh th\u1ec3 t\u1ea1o ra s\u1ef1 t\u0103ng c\u01b0\u1eddng l\u1edbn d\u00f2ng \u0111i\u1ec7n t\u1eed. Nghi\u00ean c\u1ee9u cho th\u1ea5y s\u1ef1 gia t\u0103ng g\u1ea5p 3 l\u1ea7n \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n t\u1eed c\u1ee7a v\u1eadt li\u1ec7u. \u0110\u1ed3ng th\u1eddi, b\u1ea3n ch\u1ea5t m\u1ea1ng tinh th\u1ec3 khi\u1ebfn v\u1eadt li\u1ec7u \u00edt b\u1ecb bi\u1ebfn ch\u1ea5t h\u01a1n, ngay c\u1ea3 khi b\u1ecb nung n\u00f3ng \u0111\u1ebfn 80 \u0111\u1ed9 C (176 \u0111\u1ed9 F ). C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u0169ng nh\u1eadn th\u1ea5y, m\u1ea1ng tinh th\u1ec3 nhanh ch\u00f3ng tr\u1edf l\u1ea1i c\u1ea5u h\u00ecnh b\u00ecnh th\u01b0\u1eddng sau khi \u0111\u00e8n t\u1eaft.<\/p>\n\n\n\n

Theo nh\u00f3m nghi\u00ean c\u1ee9u, m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m h\u1ea5p d\u1eabn ch\u00ednh c\u1ee7a perovskite 2D l\u00e0 th\u01b0\u1eddng c\u00f3 c\u00e1c nguy\u00ean t\u1eed h\u1eefu c\u01a1 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 r\u00e0o c\u1ea3n \u0111\u1ed1i v\u1edbi \u0111\u1ed9 \u1ea9m, \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 di chuy\u1ec3n ion. C\u00e1c perovskite 3D d\u1ec5 m\u1ea5t t\u00ednh \u1ed5n \u0111\u1ecbnh d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a nhi\u1ec7t v\u00e0 \u00e1nh s\u00e1ng, v\u00ec v\u1eady c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u1eb7t c\u00e1c l\u1edbp 2D l\u00ean tr\u00ean c\u00e1c perovskite \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, li\u1ec7u s\u1ef1 k\u1ebft h\u1ee3p c\u00f3 mang l\u1ea1i hi\u1ec7u qu\u1ea3 cao hay kh\u00f4ng. Nh\u00f3m nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng, n\u00ean s\u1ea3n xu\u1ea5t c\u00e1c pin \u0111i\u1ec7n m\u1eb7t tr\u1eddi<\/a> perovskite 2D v\u00e0 t\u00ecm ki\u1ebfm c\u00e1c gi\u1ea3i ph\u00e1p l\u00e0m t\u0103ng t\u00ednh hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

\"\"\/<\/figure><\/div>\n\n\n\n

K\u1ef9 s\u01b0 Wenbin Li, PGS h\u00f3a h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt nano Aditya Mohite, TS Siraj Sidhik trong nghi\u00ean c\u1ee9u s\u1ea3n xu\u1ea5t perovskite 2D c\u01b0\u1eddng l\u1ef1c cho pin m\u1eb7t tr\u1eddi. \u1ea2nh Jeff Fitlow \/ \u0110\u1ea1i h\u1ecdc Rice<\/em><\/p>\n\n\n\n

Nh\u00e0 v\u1eadt l\u00fd Argonne Joe Strzalka, \u0111\u1ed3ng t\u00e1c gi\u1ea3 nghi\u00ean c\u1ee9u  \u0111\u00e3 cho ch\u1ea5t quang ho\u1ea1t t\u1eeb pin m\u1eb7t tr\u1eddi ti\u1ebfp x\u00fac v\u1edbi \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi m\u00f4 ph\u1ecfng trong khi gi\u1eef nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i v\u00e0 quan s\u00e1t th\u1ea5y nh\u1eefng \u0111\u1ee3t co nh\u1ecf \u1edf c\u1ea5p \u0111\u1ed9 nguy\u00ean t\u1eed.<\/p>\n\n\n\n

Trong m\u1ed9t th\u00ed nghi\u1ec7m \u0111\u1ed1i ch\u1ee9ng, Strzalka v\u00e0 c\u00e1c \u0111\u1ed3ng nghi\u1ec7p \u0111\u1ec3 c\u0103n ph\u00f2ng t\u1ed1i v\u00e0 t\u0103ng nhi\u1ec7t \u0111\u1ed9, quan s\u00e1t th\u1ea5y hi\u1ec7u \u1ee9ng ng\u01b0\u1ee3c l\u1ea1i – s\u1ef1 gi\u00e3n n\u1edf c\u1ee7a v\u1eadt li\u1ec7u. K\u1ebft qu\u1ea3 n\u00e0y cho th\u1ea5y r\u1eb1ng ch\u00ednh \u00e1nh s\u00e1ng, kh\u00f4ng ph\u1ea3i nhi\u1ec7t \u0111\u00e3 g\u00e2y ra bi\u1ebfn \u0111\u1ed5i v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

TH\u00c1I B\u1eb0NG<\/strong><\/p>\n\n\n\n

https:\/\/khoahocdoisong.vn\/te-bao-pin-mat-troi-sieu-mong-perovskites-2d-co-hieu-suat-quang-dien-cao-va-on-dinh-185314.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c k\u1ef9 s\u01b0 thu\u1ed9c tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Rice, M\u1ef9 \u0111\u1ea1t \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n m\u1edbi trong thi\u1ebft k\u1ebf pin m\u1eb7t tr\u1eddi m\u1ecfng c\u1ea5p nguy\u00ean t\u1eed l\u00e0m b\u1eb1ng perovskite b\u00e1n d\u1eabn, n\u00e2ng cao hi\u1ec7u su\u1ea5t nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecdi v\u1edbi t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng. M\u1ed9t l\u1edbp ph\u1ee7 hai chi\u1ec1u h\u1ee3p ch\u1ea5t perovskite l\u00e0 […]<\/p>\n","protected":false},"author":23,"featured_media":31047,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-31046","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\/31046","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\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=31046"}],"version-history":[{"count":1,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/31046\/revisions"}],"predecessor-version":[{"id":31048,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/31046\/revisions\/31048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/31047"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=31046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=31046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=31046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}