Ko te Zinc telluride (ZnTe), he rauemi haurua-ā-ira II-VI nui, e whakamahia whānuitia ana i roto i te kimi i te infrared, ngā pūtau rā, me ngā taputapu optoelectronic. Nā ngā whanaketanga hou o te nanotechnology me te matū matomato kua arotau i tōna whakaputanga. Kei raro nei ngā tukanga whakaputa ZnTe matua me ngā tawhā matua, tae atu ki ngā tikanga tuku iho me ngā whakapainga hou:
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I. Tukanga Whakaputa Tuku Iho (Hanganga Tika)
1. Te Whakarite Rauemi Mata
• Konutea (Zn) me te tellurium (Te) tino parakore: Te parakore ≥99.999% (tohu 5N), i konatunatua ki te ōwehenga molar 1:1.
• Hau tiaki: Te hauhā (Ar) me te hauota (N₂) tino parakore hei ārai i te waikura.
2. Te Rere o te Tukanga
• Hipanga 1: Te Hanga Rewa Korehau
Whakaranua ngā paura Zn me Te ki roto i tētahi ngongo kuata ka whakawātea ki te ≤10⁻³ Pa.
o Kaupapa whakamahana: Whakamahanahia i te 5–10°C/min ki te 500–700°C, puritia mō ngā hāora 4–6.
o Whārite tauhohenga:Zn+Te→ΔZnTeZn+TeΔZnTe
• Hipanga 2: Te whakamahana
Whakawerahia te hua mata i te 400–500°C mō ngā haora 2–3 hei whakaiti i ngā hapa o te whatunga.
• Hipanga 3: Te kuru me te tātari
Whakamahia he mira pōro hei huri i te rauemi papatipu ki te rahi matūriki e hiahiatia ana (mira pōro pūngao-teitei mō te nano-tauine).
3. Ngā Tawhā Matua
• Te tika o te whakahaere pāmahana: ±5°C
• Tere whakamatao: 2–5°C/min (hei karo i ngā pakaru ahotea wera)
• Rahi matūriki rauemi mata: Zn (100–200 mata), Te (200–300 mata)
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II. Tukanga Whakapai Ake Hou (Tikanga Whakamahana)
Ko te tikanga solvothermal te tikanga matua mō te whakaputa ZnTe nanotauine, e tuku ana i ngā painga pēnei i te rahi matūriki ka taea te whakahaere me te iti o te whakapaunga pūngao.
1. Ngā Rauemi Mata me ngā Whakarewa
• Ngā Pūmua: Konutea pākawa (Zn(NO₃)₂) me te konutai tellurite (Na₂TeO₃) te paura tellurium (Te) rānei.
• Ngā matū whakaiti: Hydrazine hydrate (N₂H₄·H₂O) te konutai borohydride rānei (NaBH₄).
• Ngā whakarewa: Ethylenediamine (EDA) te wai whakakore ion rānei (wai DI).
2. Te Rere o te Tukanga
• Hipanga 1: Te Whakakorenga o te Pūmua
Whakarewahia te Zn(NO₃)₂ me te Na₂TeO₃ ki te ōwehenga molar 1:1 i roto i te whakarewa e whakaohohia ana.
• Hipanga 2: Tauhohenga Whakaiti
Tāpirihia te kaiwhakaiti (hei tauira, N₂H₄·H₂O) ka hiritia ki roto i te autoclave pēhanga-tiketike.
Ngā āhuatanga tauhohenga:
Te pāmahana: 180–220°C
Wā: 12–24 hāora
Pēhanga: Hangaia e ia anō (3–5 MPa)
o Whārite tauhohenga: Zn2++TeO32−+Kaiwhakaiti→ZnTe+Ngā Hua-ā-ringa (hei tauira, H₂O, N₂) Zn2++TeO32−+Kaiwhakaiti→ZnTe+Ngā Hua-ā-ringa (hei tauira, H₂O, N₂)
• Hipanga 3: Whai muri i te maimoatanga
o Whakakotahitia kia wehea te hua, horoia kia 3–5 ngā wā ki te etanoru me te wai DI.
Whakamarokehia i raro i te korehau (60–80°C mō ngā hāora 4–6).
3. Ngā Tawhā Matua
• Te kukū o te pūmua: 0.1–0.5 mol/L
• te whakahaere pH: 9–11 (ka pai ake te tauhohenga mā ngā āhuatanga kawakore)
• Whakahaere rahi matūriki: Whakatikatika mā te momo whakarewa (hei tauira, ka puta he waea nano mai i te EDA; ka puta he matūriki nano mai i te wāhanga wai).
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III. Ētahi atu Tukanga Matatau
1. Te Whakatakotoranga Kohu Matū (CVD)
• Te Whakamahinga: Te whakarite i te kiriata angiangi (hei tauira, ngā pūtau rā).
• Ngā Pūmua: Diethylzinc (Zn(C₂H₅)₂) me te diethyltellurium (Te(C₂H₅)₂).
• Ngā tawhā:
o Te pāmahana whakatakotoranga: 350–450°C
o Hau kawe: ranunga H₂/Ar (tere rere: 50–100 sccm)
o Pēhanga: 10⁻²–10⁻³ Torr
2. Te Whakakotahitanga Ā-Mīhini (Mira Pōro)
• Ngā Āhuatanga: Kore-whakarewa, hanga pāmahana-iti.
• Ngā tawhā:
ōwehenga pōro-ki-paura: 10:1
Te wā mira: 20–40 hāora
o Te tere hurihuri: 300–500 rpm
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IV. Te Mana Kounga me te Whakaahuatanga
1. Tātaritanga parakore: Te whakarara o te hihi-X (XRD) mō te hanganga tioata (te tihi matua i te 2θ ≈25.3°).
2. Whakahaere āhua: Te karu hiko tuku (TEM) mō te rahi o te matūriki nano (noa: 10–50 nm).
3. Ōwehenga huānga: Mā te ine hihi-X marara-pūngao (EDS) mā te ine papatipu plasma honohono-ā-ira rānei (ICP-MS) hei whakaū i te Zn ≈1:1.
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V. Ngā Whakaaro mō te Haumaru me te Taiao
1. Te tukatuka hau para: Mimia te H₂Te ki ngā otinga kawakore (hei tauira, NaOH).
2. Te whakaora i te whakarewa: Whakamahia anō ngā whakarewa waro (hei tauira, EDA) mā te whakatōtō.
3. Ngā mahi tiaki: Whakamahia he kopare hau (hei tiaki i te H₂Te) me ngā karapu ātete-waikura.
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VI. Ngā Auahatanga Hangarau
• Te hanga matomato: Te whakawhanake i ngā pūnaha wai-āhua hei whakaiti i te whakamahinga o te whakarewa waro.
• Te whakarerekētanga tāpiritanga: Whakapai ake i te kawe hiko mā te tāpiritanga ki te Cu, Ag, me ētahi atu.
• Te whakaputanga nui: Whakamahia ngā tauhohenga rere-tonu hei whakatutuki i ngā puranga tauine-kg.
Wā tuku: Maehe-21-2025