![\"GaN:](\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/gan_do_di_dong_dien_tu_cao_va_kha_nang_dan_nhiet_vuot_troi.png\")
<\/p>\nGaN: \u0110\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed cao v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i gi\u00fap GaN tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed v\u00e0 nhi\u1ec7t k\u1ef9 thu\u1eadt.<\/p>\n
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GaN, vi\u1ebft t\u1eaft c\u1ee7a Gallium Nitride, l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u b\u00e1n d\u1eabn n\u1ed5i b\u1eadt v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed v\u00e0 k\u1ef9 thu\u1eadt \u0111i\u1ec7n. Hai \u0111\u1eb7c t\u00ednh \u0111\u00e1ng ch\u00fa \u00fd nh\u1ea5t c\u1ee7a GaN l\u00e0 \u0111\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed cao<\/em> v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i<\/em>. Nh\u1eefng \u0111\u1eb7c t\u00ednh n\u00e0y \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/p>\n \u0110\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed, hay c\u00f2n g\u1ecdi l\u00e0 electron mobility<\/em>, l\u00e0 th\u01b0\u1edbc \u0111o t\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a c\u00e1c electron qua m\u1ed9t v\u1eadt li\u1ec7u khi ch\u1ecbu t\u00e1c d\u1ee5ng c\u1ee7a \u0111i\u1ec7n tr\u01b0\u1eddng. \u0110\u1ed1i v\u1edbi GaN, electron mobility c\u00f3 gi\u00e1 tr\u1ecb r\u1ea5t cao, t\u1ea7m kho\u1ea3ng 2000 cm2<\/sup>\/V.s. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 c\u00e1c electron c\u00f3 th\u1ec3 di chuy\u1ec3n nhanh h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n so v\u1edbi nhi\u1ec1u v\u1eadt li\u1ec7u b\u00e1n d\u1eabn kh\u00e1c, nh\u01b0 Silicon (Si).<\/p>\n \u0110\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed cao mang l\u1ea1i nhi\u1ec1u \u01b0u \u0111i\u1ec3m:<\/p>\n Kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t, hay thermal conductivity<\/em>, l\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u truy\u1ec1n nhi\u1ec7t. GaN c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i, kho\u1ea3ng 130-230 W\/mK, g\u1ea7n g\u1ea5p \u0111\u00f4i so v\u1edbi Silicon (Si).<\/p>\n Kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t cao c\u1ee7a GaN mang l\u1ea1i c\u00e1c l\u1ee3i \u00edch sau:<\/p>\n Nh\u1edd nh\u1eefng \u0111\u1eb7c t\u00ednh \u01b0u vi\u1ec7t n\u00e0y, GaN \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c:<\/p>\n GaN \u0111\u00e3 v\u00e0 \u0111ang thay \u0111\u1ed5i c\u1ee5c di\u1ec7n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed nh\u1edd v\u00e0o \u0111\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed cao v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i. C\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y bi\u1ebfn GaN th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho nhi\u1ec1u \u1ee9ng d\u1ee5ng quan tr\u1ecdng, t\u1eeb n\u0103ng l\u01b0\u1ee3ng \u0111\u1ebfn vi\u1ec5n th\u00f4ng. S\u1ef1 ph\u00e1t tri\u1ec3n li\u00ean t\u1ee5c c\u1ee7a c\u00f4ng ngh\u1ec7 GaN h\u1ee9a h\u1eb9n s\u1ebd mang \u0111\u1ebfn nhi\u1ec1u c\u1ea3i ti\u1ebfn \u0111\u00e1ng k\u1ec3 trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":" GaN: \u0110\u1ed9 di \u0111\u1ed9ng \u0111i\u1ec7n t\u1eed cao v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i gi\u00fap GaN tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n t\u1eed v\u00e0 nhi\u1ec7t k\u1ef9 thu\u1eadt.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\n\u0110\u1ed9 Di \u0110\u1ed9ng \u0110i\u1ec7n T\u1eed Cao c\u1ee7a GaN<\/h2>\n
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Kh\u1ea3 N\u0103ng D\u1eabn Nhi\u1ec7t V\u01b0\u1ee3t Tr\u1ed9i c\u1ee7a GaN<\/h2>\n
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\u1ee8ng D\u1ee5ng C\u1ee7a GaN<\/h2>\n
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K\u1ebft Lu\u1eadn<\/h2>\n