Sil\u012bcija karb\u012bda pusvad\u012bt\u0101jam ir vair\u0101kas priek\u0161roc\u012bbas, kas to padara par pievilc\u012bgu alternat\u012bvu sil\u012bcija b\u0101zes ier\u012bc\u0113m, tostarp sp\u0113ja iztur\u0113t augstus spriegumus, uzlabot siltuma efektivit\u0101ti un samazin\u0101t elektromobi\u013cu jaudas elektronisko ier\u012b\u010du izm\u0113rus un svaru.<\/p>\n
SiC dab\u0101 sastopams moissan\u012bta d\u0101rgakme\u0146os un kimberl\u012bta atradn\u0113s, ta\u010du liel\u0101k\u0101 da\u013ca tiek ra\u017eota sint\u0113tiski izmanto\u0161anai elektroniskaj\u0101s deta\u013c\u0101s, baro\u0161anas avotos un kodolreaktoros.<\/p>\n
Sil\u012bcija karb\u012bds (SiC) ir novatorisks pusvad\u012bt\u0101ju materi\u0101ls ar \u0101rk\u0101rt\u012bgi pla\u0161u ener\u0123ijas spraugu, kas \u013cauj SiC ier\u012bc\u0113m iztur\u0113t augst\u0101kus spriegumus un str\u0101vas stiprumus nek\u0101 to sil\u012bcija b\u0101zes analogiem, t\u0101d\u0113j\u0101di padarot t\u0101s piem\u0113rotas jaudas elektronikai, piem\u0113ram, elektromobi\u013cu vilces invertoriem un nep\u0101rtrauktas baro\u0161anas avotiem.<\/p>\n
Pusvad\u012bt\u0101ji ir materi\u0101li, kas p\u0101rmai\u0146us darbojas k\u0101 vad\u012bt\u0101ji (piem\u0113ram, vara elektrovadi) un izolatori (piem\u0113ram, polim\u0113ra izol\u0101cija uz \u0161iem vadiem). Pusvad\u012bt\u0101ju joslas sprauga ir ener\u0123ijas barjera starp to valences joslu (valence band) un vad\u012bbas joslu (conduction band). Ener\u0123ijas plaisa \u013cauj pusvad\u012bt\u0101ju ier\u012bc\u0113m iesl\u0113gt vai izsl\u0113gt str\u0101vu atbilsto\u0161i \u0137\u0113\u017eu pras\u012bb\u0101m.<\/p>\n
Ener\u0123ijas spraugas platums ir atkar\u012bgs no materi\u0101los eso\u0161o atomu sai\u0161u lieluma un stipr\u012bbas, k\u0101 ar\u012b no temperat\u016bras. Lai uzbudin\u0101tu nes\u0113jus, pla\u0161\u0101kai ener\u0123ijas spraugai nepiecie\u0161ami sp\u0113c\u012bg\u0101ki elektriskie lauki; t\u0101d\u0113\u013c \u0161ie materi\u0101li ir piem\u0113roti augstsprieguma lietojumiem. Materi\u0101liem ar pla\u0161u ener\u0123ijas spraugu ir ar\u012b maz\u0101ki vad\u012b\u0161anas zudumi nek\u0101 sil\u012bcija analogiem.<\/p>\n
Saska\u0146\u0101 ar ASV Ener\u0123\u0113tikas departamenta datiem, pusvad\u012bt\u0101ji ar pla\u0161u ener\u0123ijas spraugu k\u013c\u016bs par neat\u0146emamu atjaunojamo ener\u0123ijas avotu sist\u0113mu, piem\u0113ram, saules un v\u0113ja ener\u0123ijas sist\u0113mu, sast\u0101vda\u013cu. Turkl\u0101t pusvad\u012bt\u0101ji ar pla\u0161u ener\u0123ijas spraugu pal\u012bdz\u0113s veicin\u0101t elektromobi\u013cu \u0101tr\u0101ku ievie\u0161anu, viegl\u0101k digitaliz\u0113t ener\u0123\u0113tikas nozares procesus, iev\u0113rojami samazin\u0101t dz\u012bves cikla izmaksas, padar\u012bt WBG jaudas elektroniku maz\u0101ku, \u0101tr\u0101ku, uzticam\u0101ku un rentabl\u0101ku nek\u0101 t\u0101s sil\u012bcija b\u0101zes analogus, k\u0101 ar\u012b pied\u0101v\u0101s vair\u0101kas citas potenci\u0101las priek\u0161roc\u012bbas, kas padara WBG jaudas elektroniku par pievilc\u012bgu alternat\u012bvu sil\u012bcija jaudas elektronikai.<\/p>\n
Sil\u012bcija karb\u012bda jaudas pusvad\u012bt\u0101ju ier\u012bces ir pier\u0101d\u012bju\u0161as savu iztur\u012bbu augst\u0101kos spriegumos, zem\u0101k\u0101s temperat\u016br\u0101s un ar ilg\u0101ku kalpo\u0161anas laiku nek\u0101 to sil\u012bcija (Si) analogi. Turkl\u0101t SiC ier\u012bces var apvienot maz\u0101kos baro\u0161anas avotos ar liel\u0101ku jaudas bl\u012bvumu, t\u0101d\u0113j\u0101di padarot t\u0101s par ide\u0101lu izv\u0113li jaudas elektronikai, kas savieno m\u016bsu pasauli gan \u0161odien, gan n\u0101kotn\u0113.<\/p>\n
Sil\u012bcija karb\u012bda pusvad\u012bt\u0101jiem piem\u012bt pla\u0161as ener\u0123ijas spraugas, kas \u013cauj tiem efekt\u012bv\u0101k p\u0101rvad\u012bt elektrisko ener\u0123iju nek\u0101 tradicion\u0101laj\u0101m sil\u012bcija ier\u012bc\u0113m, \u0101tri p\u0101rsl\u0113dzoties starp vad\u012bt\u0101jiem un izolatoriem un l\u012bdz minimumam samazinot p\u0101rsl\u0113g\u0161an\u0101s zudumus, kas nodro\u0161ina \u0101tr\u0101ku elektr\u012bbas p\u0101rveido\u0161anu, zem\u0101kas ener\u0123ijas izmaksas un maz\u0101kus p\u0101rveido\u0161anas zudumus \u2013 t\u0101d\u0113j\u0101di tie ir ide\u0101li piem\u0113roti izmanto\u0161anai datu centru baro\u0161anas avotos, v\u0113ja un saules ener\u0123ijas modu\u013cos, k\u0101 ar\u012b elektromobi\u013cu piedzi\u0146as p\u0101rveidot\u0101jos.<\/p>\n
L\u012bdz ar atjaunojam\u0101s ener\u0123ijas piepras\u012bjuma pieaugumu palielin\u0101sies ar\u012b vajadz\u012bba p\u0113c uzticamiem ener\u0123ijas avotiem. Sil\u012bcija karb\u012bda pusvad\u012bt\u0101ju baro\u0161anas avoti nodro\u0161ina ener\u0123ijas ietaup\u012bjumu, vienlaikus uzlabojot atjaunojam\u0101s ener\u0123ijas sist\u0113mu efektivit\u0101ti, pateicoties augstajai komut\u0101cijas frekvencei un pla\u0161ajam darba temperat\u016bras diapazonam.<\/p>\n
Neatkar\u012bgi no t\u0101, vai runa ir par r\u016bpniecisko pielietojumu vai ar akumulatoru darbin\u0101m\u0101m tehnolo\u0123ij\u0101m, \u201eWolfspeed\u201c pied\u0101v\u0101 modernus jaudas pusvad\u012bt\u0101ju risin\u0101jumus, kas izstr\u0101d\u0101ti un ra\u017eoti, izmantojot SiC tehnolo\u0123iju \u2013 cie\u0161i sadarbojoties ar \u201eAstrodyne TDI\u201c, lai izstr\u0101d\u0101tu inovat\u012bvus risin\u0101jumus pat vispras\u012bg\u0101kajiem pielietojumiem.<\/p>\n
Sil\u012bcija karb\u012bda pusvad\u012bt\u0101jiem ir augst\u0101ks blo\u0137\u0113\u0161anas spriegums nek\u0101 to sil\u012bcija analogiem, t\u0101d\u0113j\u0101di tie sp\u0113j lab\u0101k p\u0101rvald\u012bt liel\u0101kas str\u0101vas pl\u016bsmas un komut\u0101cijas zudumus, uzlabojot ener\u0123ijas p\u0101rveides efektivit\u0101ti un padarot tos piem\u0113rotus augstsprieguma lietojumiem, piem\u0113ram, elektromobi\u013cu vilces invertoriem.<\/p>\n
Sil\u012bcija karb\u012bds at\u0161\u0137iras no standarta sil\u012bcija pusvad\u012bt\u0101jiem ar to, ka tam ir plat\u0101ka ener\u0123ijas josla nek\u0101 citiem materi\u0101liem, piem\u0113ram, gallija nitr\u012bdam (GaN). Plat\u0101ka ener\u0123ijas josla \u013cauj SiC efekt\u012bv\u0101k p\u0101rvad\u012bt elektrisko ener\u0123iju \u2013 tas ir ide\u0101li piem\u0113rots augstsprieguma lietojumiem, jo sp\u0113j iztur\u0113t ar\u012b augstas temperat\u016bras un starojuma iedarb\u012bbu.<\/p>\n
Sil\u012bcija karb\u012bdam piem\u012bt \u0101rk\u0101rt\u012bgi zema iesl\u0113g\u0161an\u0101s pretest\u012bba, un tas iesl\u0113dzas un izsl\u0113dzas maz\u0101k nek\u0101 10 nanosekund\u0113s \u2014 t\u0101 ir nenov\u0113rt\u0113jama \u012bpa\u0161\u012bba \u0101trdarb\u012bgiem pielietojumiem, jo samazina ener\u0123ijas zudumus, vienlaikus pa\u0101trinot darb\u012bbas. Turkl\u0101t sil\u012bcija karb\u012bdam ir zema temperat\u016bras atkar\u012bba, kas \u013cauj tam darboties augst\u0101k\u0101s temperat\u016br\u0101s nek\u0101 tradicion\u0101lajiem pusvad\u012bt\u0101jiem.<\/p>\n
Sil\u012bcija karb\u012bds at\u0161\u0137iras no tradicion\u0101lajiem pusvad\u012bt\u0101ju materi\u0101liem ar to, ka t\u0101 ku\u0161anas temperat\u016bra ir daudz zem\u0101ka, k\u0101 ar\u012b tas ir \u013coti iztur\u012bgs pret koroziju, ko izraisa s\u0101\u013ci un sk\u0101bes, t\u0101d\u0113j\u0101di padarot to ide\u0101li piem\u0113rotu nelabv\u0113l\u012bgiem apst\u0101k\u013ciem, piem\u0113ram, j\u016bras vid\u0113. Sil\u012bcija karb\u012bda priek\u0161roc\u012bbas ir veicin\u0101ju\u0161as t\u0101 arvien pla\u0161\u0101ku izmanto\u0161anu elektroniskaj\u0101s ier\u012bc\u0113s, jo tam ir potenci\u0101ls palielin\u0101t brauk\u0161anas att\u0101lumu, paaugstinot vilces invertoru efektivit\u0101ti \u2013 tas ir viens no iemesliem, k\u0101p\u0113c tas var\u0113tu palielin\u0101t pat elektromobi\u013cu brauk\u0161anas att\u0101lumu!<\/p>\n
Sil\u012bcija karb\u012bds (SiC) ir neorganisks \u0137\u012bmiskais savienojums, kas sast\u0101v no sil\u012bcija un oglek\u013ca. Dab\u0101 tas sastopams k\u0101 moissan\u012bta d\u0101rgakmens, bet r\u016bpniecisk\u0101 ra\u017eo\u0161an\u0101 SiC tiek ra\u017eots pulvera vai monokrist\u0101lu veid\u0101, lai to izmantotu k\u0101 abraz\u012bvu. SiC tiek izmantots ar\u012b bru\u0146u vest\u0113s; ja to le\u0123\u0113 ar alum\u012bniju, boru, galliju vai sl\u0101pekli, tas s\u0101k uzvesties vair\u0101k k\u0101 pusvad\u012bt\u0101ja materi\u0101ls, veidojot P-tipa vai N-tipa pusvad\u012bt\u0101ju zonas, kas nepiecie\u0161amas ier\u012b\u010du ra\u017eo\u0161anai.<\/p>\n
SiC uzticam\u012bba ir iz\u0161\u0137iro\u0161s aspekts, lai to var\u0113tu izmantot k\u0101 platjoslas jaudas ier\u012bces augstas veiktsp\u0113jas lietojumos, at\u0161\u0137ir\u012bb\u0101 no t\u0101 izplat\u012bt\u0101k\u0101 priek\u0161te\u010da \u2014 sil\u012bcija. SiC nodro\u0161ina augst\u0101kus spriegumus, komut\u0101cijas frekvences un maz\u0101kus paraz\u012btiskos efektus nek\u0101 sil\u012bcijs; tom\u0113r, nov\u0113rt\u0113jot t\u0101 uzticam\u012bbu, ir j\u0101\u0146em v\u0113r\u0101 da\u017ei svar\u012bgi apsv\u0113rumi.<\/p>\n
Uzticam\u012bbas test\u0113\u0161ana un kalpo\u0161anas laika prognoz\u0113\u0161anas mode\u013ci ir b\u016btiski r\u012bki, lai nov\u0113rt\u0113tu sil\u012bcija karb\u012bda jaudas ier\u012b\u010du paredzamo kalpo\u0161anas laiku. R\u016bpnieciskajos testos parasti cen\u0161as p\u0113c iesp\u0113jas ilg\u0101k pak\u013caut ier\u012bces darb\u012bbai, p\u0101rsniedzot to maksim\u0101los sprieguma vai str\u0101vas nomin\u0101los r\u0101d\u012bt\u0101jus, kas rada p\u0101rm\u0113r\u012bgu slodzi un izraisa nolieto\u0161anos, t\u0101d\u0113j\u0101di ieg\u016bstot datus, lai prognoz\u0113tu vid\u0113jo laiku l\u012bdz atteicei (MTTF).<\/p>\n
Ra\u017eot\u0101jiem ir ar\u012b j\u0101piev\u0113r\u0161 liela uzman\u012bba kosmiskajiem stariem, kas var izrais\u012bt korozijas boj\u0101jumus jaudas ier\u012b\u010du oks\u012bda sl\u0101\u0146os. Tas ir \u012bpa\u0161i svar\u012bgi kosmosa un avi\u0101cijas nozar\u0113, kur starojuma l\u012bmenis var sasniegt tr\u012bsk\u0101r\u0161u l\u012bmeni sal\u012bdzin\u0101jum\u0101 ar standarta r\u016bpniec\u012bbas augstumos nov\u0113roto.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide semiconductor offers several advantages that make it an attractive alternative to silicon-based devices, including its ability to handle high voltages, enhance thermal efficiency and decrease size\/weight of power electronic devices in electric vehicles. SiC is found naturally in moissanite gems and kimberlite deposits, but most is produced synthetically for use in electronic components, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[64],"tags":[],"class_list":["post-310","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/posts\/310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/comments?post=310"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/posts\/310\/revisions"}],"predecessor-version":[{"id":311,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/posts\/310\/revisions\/311"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/media?parent=310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/categories?post=310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/lv\/wp-json\/wp\/v2\/tags?post=310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}