Zinc tigidh (znte), shey muhiim ah oo ah semiconductor semiconductor, ayaa si weyn loogu isticmaalaa ogaanshaha xad-dhaafka ah, unugyada qoraxda, iyo aaladaha loo yaqaan 'opopoelktonic'. Kordhinta ugu dambeysa ee ku saabsan nanotechnology iyo kimistariga cagaaran ayaa si hagaagsan waxsoosashadeeda. Hoos waxaa ku yaal geedi socodka wax soo saarka ee zcktream ee hadda jira iyo xuduudaha muhiimka ah, oo ay ku jiraan habab dhaqan iyo hagaajinta casriga ah:
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I. Nidaamka wax soo saarka dhaqameed (Tartan Synthesis)
1. Diyaarinta ceew
• zinc-sacii sare (zn) iyo tukax)
• Gaaska difaaca: Argon-daahir sare (ar) ama nitrogen (n₂) si looga hortago oksidation.
2. Socodka socodka
• Tallaabo 1: FACUM MALLINGESIS
o Ku qas zn iyo budada tuubbada tubada rubuc ah oo aad u baxdo ≤10⁻³ pa.
o Barnaamijka kuleylka: kuleylka 5-10 ° C / min ilaa 500-700 ° C, hayso 4-6 saacadood.
o isleegyada falcelinta: zn + te → Δzntezn + teΔzntne
• Tallaabo 2: Guuldaraynta
o Ku baro sheyga khiyaanada ah 400-500 ° C 2-3 saacadood si loo yareeyo cilladaha suuladaha.
• Tallaabo 3: burburin iyo sokeeye
o U isticmaal maleega kubbadda si aad ugu shiiddo agabka badan cabirka walxaha bartilmaameedka ah (kubada tamarta sare ee nanoscale).
3. Cabirrada muhiimka ah
• Sax saxnaanta xakamaynta kuleylka: ± 5 ° C
• Heerka qaboojinta: 2-5 ° C / min (si looga fogaado dildilaaca walaaca kuleylka)
• Cabbirka walxaha walxaha ka kooban ee cayriin: zn (100-200 mesh), te (200-300 mesh)
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II. Geedi socodka casriga ah ee la hagaajiyay (Qaabka Solththethel)
Habka Solththermal waa farsamada guud ee soo saarista nanoscale znte, oo bixiya faa'iidooyin sida cabirka walxaha xakameysan iyo isticmaalka tamarta yar.
1. Qalabka ceyriinka iyo solvents
• Farxad: zinc amnt (zn (maya (maya (no₃) ₂) iyo sodium theurite (NA₂TOO₃) ama budada ugu dhawaaqa (TE).
• In la dhimo wakiilada: hydrazine hydrate (n₂h₄ · h₂o) ama sodium-ka bohhyrid (nabh₄).
• KHUDBADAHA: Etheriyaamiamine (Eda) ama biyo laga demiyey (DI biyo).
2. Socodka socodka
• Tallaabada 1: Kala-baxa horudhaca
o Kala diri doonaa zn (Maya₃) ₂ iyo na₂teo₃ a 1: 1 sawir sawir ah oo ku jira xalka kareysiga.
• Tallaabada 2: Falcelinta Yaraynta
o Ku dar wakiilka yareynta (tus., n₂h₄ · h₂o) oo ku xir dul saar safka sare.
o Xaaladaha fal-celinta:
Heerkulka: 180-220 ° C
Waqtiga: Waqtiga: 12-24 saacadood
Cadaadis: Is-huruud (3-5 MPA)
o isleegyada fal-celinta
• Tallaabo 3: Daaweyn Kadib
o Centrifeege si loo kala baxo badeecada, ku dhaq 3-5 jeer ethanol iyo di.
o Ku qallaji hoosta vacuum (60-80 ° C 4-6 saacadood).
3. Cabirrada muhiimka ah
• U fiirsashada horudhaca: 0.1-0.5 mol / l
• Xakamaynta PH: 9-11 (xaaladaha alkaline ee falcelinta falcelinta)
• Xakamaynta Tirka Qeybta: Ku hagaaji nooca xalka ah (tus, EDA, EDA waxay dhalisaa NanoWEire; wajiga aqueous wuxuu soo saaraa nanopatters).
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III. Hawlaha kale ee horumarsan
1. Bixinta uumiga kiimikada (CVD)
• Codsi: Diyaarinta Filimka-Filimka (tusaale, unugyada qoraxda).
• Farxad: Dithylzin (zn (c₂h₅) ₂) iyo Ditheltellurium (T (C₂h₅) ₂).
• Cabirrada:
o Heerkulka dhigaalka: 350-450 ° C
o gaaska side: h₂ / ar isku-darka (qulqulka qulqulka: 50-100 SCCM)
o Cadaadis: 10⁻²-10⁻³ Torr
2. Qoob-ka-galka farsamada
• Tilmaamaha: Conventesis-ka-bilaashka ah, heerkulka heerkulka-hoose.
• Cabirrada:
o Saamiga kubadaha kubadaha: 10: 1
o Waqti yar oo yar: 20-40 saacadood
o Xawaaraha wareega: 300-500 rpm
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Iv. Xakamaynta tayada iyo astaamaha
1. Falanqaynta daahirinta
2. Xakameynta Mulphology: Gudbinta Elektaroonigga elektaroonigga ah ee elektaroonigga ah (tem) ee loo yaqaan '' temport '(tem) ee cabirrada nanoptatcle (caadiga ah: 10-50 NM).
3. Saamiga aasaasiga ah
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V. Nabdoonaanta iyo tixgalinta deegaanka
1. Daaweynta gaaska: kaxee H₂te xalalka alkaline (tusaale, Nax, Nabiga).
2. Soo kabashada xallinta: Dib u soo kabashada: Dib u warshadeynta dareeraha dabiiciga ah (tusaale ahaan, Eda) iyada oo loo marayo musiibo.
3. Tallaabooyin ilaalin ah: Isticmaal maaskaro gaas ah (oo loogu talagalay ilaalinta H₂te) iyo galoofyada iska caabinta u adkaysta.
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Vi. Isbeddellada farsamada
• Isku-darka cagaaran: Samee nidaamyada sunta aqueous-wejiga si loo yareeyo isticmaalka dareeraha dabiiciga ah.
• Wax ka beddelka Doping: kor u qaadida wanaajinta iyadoo la adeegsanayo CU, AG, iwm.
• Wax soo saar ballaaran: qaado waxyaabaha ka-hortagga socodka joogtada ah si loo gaaro dufcadaha buugga.
Waqtiga Post: Mar-21-2025