{"id":6398,"date":"2025-11-11T14:21:00","date_gmt":"2025-11-11T06:21:00","guid":{"rendered":"https:\/\/globalquartztube.com\/?p=6398"},"modified":"2025-08-11T16:11:12","modified_gmt":"2025-08-11T08:11:12","slug":"what-is-carrier-lifetime-part-2-of-10","status":"publish","type":"post","link":"https:\/\/globalquartztube.com\/lv\/what-is-carrier-lifetime-part-2-of-10\/","title":{"rendered":"Kas ir p\u0101rvad\u0101t\u0101ja kalpo\u0161anas laiks (2. da\u013ca no 10)"},"content":{"rendered":"

P\u0101rvad\u0101t\u0101ja kalpo\u0161anas laiks<\/strong> ir galvenais parametrs pusvad\u012bt\u0101ju fizik\u0101, ko izmanto, lai aprakst\u012btu vid\u0113jo laiku, ko nel\u012bdzsvara nes\u0113ji (elektroni vai caurumi) izdz\u012bvo materi\u0101l\u0101 pirms rekombin\u0101cijas. T\u0101 v\u0113rt\u012bba tie\u0161i atspogu\u013co pusvad\u012bt\u0101ju materi\u0101la kvalit\u0101ti un t\u012br\u012bbu, k\u0101 ar\u012b ier\u012b\u010du potenci\u0101lo veiktsp\u0113ju. Turpm\u0101k sniegts s\u012bk\u0101ks skaidrojums:<\/p>\n\n\n\n

1. Pamatdefin\u012bcija<\/h3>\n\n\n\n

P\u0101rvad\u0101t\u0101ji:<\/strong>
Vado\u0161\u0101s da\u013ci\u0146as pusvad\u012bt\u0101jos, tostarp elektroni (negat\u012bvs l\u0101di\u0146\u0161) un caurumi (pozit\u012bvs l\u0101di\u0146\u0161). Kad elektroni tiek ierosin\u0101ti ar gaismu, elektr\u012bbu vai siltumu, tie p\u0101riet no valences joslas uz vad\u012btsp\u0113jas joslu, radot elektronu-durvju p\u0101rus (t. i., nel\u012bdzsvara nes\u0113jus).<\/p>\n\n\n\n

P\u0101rvad\u0101t\u0101ja kalpo\u0161anas laiks:<\/strong>
Vid\u0113jais laiks no br\u012b\u017ea, kad rodas \u0161ie nevienm\u0113r\u012bgie nes\u0113ji, l\u012bdz to rekombin\u0101cijai (elektroniem aizpildot caurumus), ko m\u0113ra mikrosekund\u0113s (\u03bcs) vai milisekund\u0113s (ms). Jo ilg\u0101ks kalpo\u0161anas laiks, jo augst\u0101ka ir tipisk\u0101 materi\u0101la kvalit\u0101te.<\/p>\n\n\n\n

\"P\u0101rvad\u0101t\u0101ja
P\u0101rvad\u0101t\u0101ja m\u016b\u017ea test\u0113\u0161ana<\/figcaption><\/figure>\n\n\n\n
\n\n\n\n

2. K\u0101p\u0113c tas ir svar\u012bgi?<\/h3>\n\n\n\n

Pusvad\u012bt\u0101ju ier\u012b\u010du veiktsp\u0113ja:<\/strong><\/p>\n\n\n\n

    \n
  • Saules baterijas:<\/strong> Jo ilg\u0101ks ir nes\u0113ja m\u016b\u017es, jo vair\u0101k iesp\u0113ju elektrodiem sav\u0101kt fotogener\u0113tos elektronu-caurumu p\u0101rus, t\u0101d\u0113j\u0101di uzlabojot konversijas efektivit\u0101ti.<\/li>\n\n\n\n
  • Baro\u0161anas ier\u012bces<\/strong> (piem\u0113ram, IGBT, SiC MOSFET): Liel\u0101ks darbm\u016b\u017es samazina komut\u0101cijas zudumus un uzlabo sprieguma notur\u012bbu.<\/li>\n\n\n\n
  • Sensori\/detektori:<\/strong> Ietekm\u0113 reakcijas \u0101trumu un sign\u0101la un trok\u0161\u0146a attiec\u012bbu.<\/li>\n<\/ul>\n\n\n\n

    Procesu uzraudz\u012bba:<\/strong>
    Samazin\u0101ts kalpo\u0161anas laiks var liecin\u0101t par materi\u0101la pies\u0101r\u0146ojumu (piem\u0113ram, met\u0101la piemais\u012bjumiem), krist\u0101lu defektiem vai procesa boj\u0101jumiem (piem\u0113ram, p\u0101rm\u0113r\u012bgu jonu implant\u0101ciju).<\/p>\n\n\n\n

    \n\n\n\n

    3. Faktori, kas ietekm\u0113 nes\u0113ja kalpo\u0161anas laiku<\/h3>\n\n\n\n

    (1) Iek\u0161\u0113j\u0101s materi\u0101lu \u012bpa\u0161\u012bbas<\/strong><\/p>\n\n\n\n

      \n
    • Joslas spraugas platums (Eg):<\/strong> Platjoslas materi\u0101liem (piem\u0113ram, SiC, GaN) parasti ir \u012bs\u0101ks nes\u0113ju dz\u012bves ilgums (nanosekundes), bet sil\u012bcija (Si) var sasniegt milisekundes.<\/li>\n\n\n\n
    • Krist\u0101la kvalit\u0101te:<\/strong> Monokrist\u0101la sil\u012bcija kalpo\u0161anas laiks ir daudz ilg\u0101ks nek\u0101 polikrist\u0101la sil\u012bcija (graudu robe\u017eu rekombin\u0101cijas d\u0113\u013c).<\/li>\n<\/ul>\n\n\n\n

      (2) Piemais\u012bjumi un defekti<\/strong><\/p>\n\n\n\n

        \n
      • Met\u0101lu piemais\u012bjumi (Fe, Cu u. c.):<\/strong> Izveidot rekombin\u0101cijas centrus un pa\u0101trin\u0101t nes\u0113ju rekombin\u0101ciju.
        Piem\u0113rs: (viena da\u013ca uz miljardu) dzelzs piemais\u012bjumu var samazin\u0101t kalpo\u0161anas laiku no 1000 \u03bcs l\u012bdz 10 \u03bcs.<\/li>\n\n\n\n
      • P\u0101rcel\u0161an\u0101s\/Vakances:<\/strong> Krist\u0101lu defekti uztver nes\u0113jus, sa\u012bsinot to kalpo\u0161anas laiku.<\/li>\n<\/ul>\n\n\n\n

        (3) Virsma un saskarne<\/strong><\/p>\n\n\n\n

          \n
        • Virsmas rekombin\u0101cija:<\/strong> Nepasiv\u0113t\u0101s sil\u012bcija pl\u0101k\u0161\u0146u virsm\u0101s ir sv\u0101rst\u012bgas saites, kas kalpo k\u0101 rekombin\u0101cijas centri (to var nov\u0113rst, izmantojot SiNx\/Al\u2082O\u2083 pasiv\u0101cijas sl\u0101\u0146us).<\/li>\n\n\n\n
        • Oks\u012bda sl\u0101\u0146a l\u0101di\u0146\u0161:<\/strong> SiO\u2082\/Si saskarnes l\u0101di\u0146i palielina saskarnes rekombin\u0101cijas \u0101trumu.<\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n

          4. M\u0113r\u012b\u0161anas metodes<\/h3>\n\n\n\n
          Metode<\/th>Princips<\/th>Pieteikuma scen\u0101rijs<\/th><\/tr><\/thead>
          \u03bc-PCD<\/td>Mikrovi\u013c\u0146u kr\u0101s\u0101s detekt\u0113ta fotovad\u012btsp\u0113jas sabruk\u0161ana<\/td>\u0100tr\u0101 test\u0113\u0161ana tie\u0161saist\u0113 (saules sil\u012bcija pl\u0101ksnes)<\/td><\/tr>
          QSSPC<\/td>Kvazi-stacion\u0101r\u0101 st\u0101vok\u013ca fotovad\u012btsp\u0113ja, m\u0113rot maz\u0101kuma nes\u0113ju dif\u016bzijas garumu<\/td>Augstas precizit\u0101tes laboratorijas m\u0113r\u012bjumi<\/td><\/tr>
          PL (fotoluminiscence)<\/td>nosaka kalpo\u0161anas laiku no fotonu intensit\u0101tes, kas izstarota nes\u0113ju rekombin\u0101cijas laik\u0101.<\/td>Bezkontakta, piem\u0113rots pl\u0101nsl\u0101\u0146ainiem materi\u0101liem<\/td><\/tr>
          TRPL (laika iz\u0161\u0137irt\u0101 PL)<\/td>Fluorescences sabruk\u0161anas laika m\u0113r\u012b\u0161ana, lai tie\u0161i ieg\u016btu dz\u012bves ilgumu.<\/td>Tie\u0161\u0101s joslas starp\u012bbas pusvad\u012bt\u0101jiem (piem., GaAs)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
          \n\n\n\n

          5. Praktisks piem\u0113rs: k\u0101 kvarca caurules ietekm\u0113 nes\u0113ja kalpo\u0161anas laiku<\/h3>\n\n\n\n
            \n
          • Pies\u0101r\u0146ojuma p\u0101rnese:<\/strong> Augst\u0101 temperat\u016br\u0101 Na\u207a no kvarca caurules var difund\u0113t uz sil\u012bcija pl\u0101ksn\u0113m, veidojot rekombin\u0101cijas centrus \u2192 samazin\u0101ts kalpo\u0161anas laiks.<\/li>\n\n\n\n
          • Kristaliz\u0101cijas da\u013ci\u0146as:<\/strong> Devitrifik\u0101cija (kristobal\u012bta veido\u0161an\u0101s) kvarca caurul\u012bt\u0113s var izrais\u012bt da\u013ci\u0146u atdal\u012b\u0161anos un pielip\u0161anu pie pl\u0101ksn\u012btes virsmas \u2192 paaugstin\u0101ts virsmas rekombin\u0101cijas \u0101trums.<\/li>\n<\/ul>\n\n\n\n

            Risin\u0101jums:<\/strong> Izmantojiet \u012bpa\u0161i augstas t\u012br\u012bbas pak\u0101pes sint\u0113tisk\u0101 kvarca caurules (met\u0101la piemais\u012bjumi <0,1 ppm) un kontrol\u0113jiet procesa temperat\u016bru.<\/p>\n\n\n\n

            \n\n\n\n

            6. Tipiskas nozares atsauces v\u0113rt\u012bbas<\/h3>\n\n\n\n
              \n
            • Fotovoltaikas kvalit\u0101tes sil\u012bcija pl\u0101ksnes:<\/strong> >100 \u03bcs (augstas efektivit\u0101tes PERC elementiem nepiecie\u0161ams >500 \u03bcs).<\/li>\n\n\n\n
            • Pusvad\u012bt\u0101ju kvalit\u0101tes sil\u012bcijs:<\/strong> > 1 ms (augstas pretest\u012bbas sil\u012bcijs integr\u0101l\u0101m sh\u0113m\u0101m).<\/li>\n\n\n\n
            • SiC epitaksijas sl\u0101\u0146i:<\/strong> ~0,1-1 \u03bcs (\u0101tr\u0101ka rekombin\u0101cija pla\u0161a diapazona spraugas d\u0113\u013c).<\/li>\n<\/ul>\n\n\n\n
              \n\n\n\n

              Kopsavilkums<\/h3>\n\n\n\n

              Nes\u0113ja kalpo\u0161anas laiks ir pusvad\u012bt\u0101ju materi\u0101lu \u201cvesel\u012bbas r\u0101d\u012bt\u0101js\u201d. T\u0101s v\u0113rt\u012bbu kop\u012bgi ietekm\u0113 pamatmateri\u0101ls, piemais\u012bjumi, saskarnes un procesa vide. Optimiz\u0113jot kvarca caurul\u012b\u0161u t\u012br\u012bbu, atloka bl\u012bv\u0113juma kvalit\u0101ti un citus perif\u0113ros komponentus, \u0161o parametru var netie\u0161i saglab\u0101t, t\u0101d\u0113j\u0101di uzlabojot ier\u012bces veiktsp\u0113ju.<\/p>","protected":false},"excerpt":{"rendered":"

              Carrier Lifetime is a key parameter in semiconductor physics, used to describe the average time that non-equilibrium carriers (electrons or holes) survive in a material before recombination. Its value directly reflects the quality and purity of the semiconductor material, as well as the potential performance of devices. Below is a detailed explanation: 1. Basic Definition […]<\/p>\n","protected":false},"author":1,"featured_media":6401,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"What is Carrier Lifetime (Part 2 of 10)","_seopress_titles_desc":"Carrier lifetime is a key semiconductor parameter affecting material quality and device performance, influenced by impurities, defects, and process conditions.","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"set","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"ppma_author":[21],"class_list":["post-6398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","author-nola"],"uagb_featured_image_src":{"full":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing.jpg",981,634,false],"thumbnail":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing-150x150.jpg",150,150,true],"medium":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing-300x194.jpg",300,194,true],"medium_large":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing-768x496.jpg",768,496,true],"large":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing.jpg",981,634,false],"1536x1536":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing.jpg",981,634,false],"2048x2048":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing.jpg",981,634,false],"trp-custom-language-flag":["https:\/\/globalquartztube.com\/wp-content\/uploads\/2025\/08\/Carrier-Lifetime-Testing-18x12.jpg",18,12,true]},"uagb_author_info":{"display_name":"Nola Zhang","author_link":"https:\/\/globalquartztube.com\/lv\/author\/nola\/"},"uagb_comment_info":16,"uagb_excerpt":"Carrier Lifetime is a key parameter in semiconductor physics, used to describe the average time that non-equilibrium carriers (electrons or holes) survive in a material before recombination. Its value directly reflects the quality and purity of the semiconductor material, as well as the potential performance of devices. Below is a detailed explanation: 1. Basic Definition…","authors":[{"term_id":21,"user_id":1,"is_guest":0,"slug":"nola","display_name":"Nola Zhang","avatar_url":{"url":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp","url2x":"https:\/\/globalquartztube.com\/wp-content\/uploads\/2024\/06\/Casper-Peng.webp"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":""}],"_links":{"self":[{"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/posts\/6398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/comments?post=6398"}],"version-history":[{"count":2,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/posts\/6398\/revisions"}],"predecessor-version":[{"id":6422,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/posts\/6398\/revisions\/6422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/media\/6401"}],"wp:attachment":[{"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/media?parent=6398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/categories?post=6398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/tags?post=6398"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/globalquartztube.com\/lv\/wp-json\/wp\/v2\/ppma_author?post=6398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}