1. Ukwenziwa kwe-Solvothermal
1. Okuluhlazaisilinganiso sezinto ezibonakalayo
Impuphu ye-zinc kanye nempuphu ye-selenium zixutshwa ngesilinganiso se-molar esingu-1:1, bese kuthi amanzi acwebezelwe noma i-ethylene glycol yengezwe njenge-solvent medium 35.
2.Izimo zokusabela
o Izinga lokushisa lokusabela: 180-220°C
o Isikhathi sokusabela: amahora angu-12-24
o Ukucindezela: Gcina ukucindezela okuzenzekelayo eketheni lokusabela elivaliwe
Inhlanganisela eqondile ye-zinc ne-selenium iqhutshwa ukufudumeza ukuze kukhiqizwe amakristalu e-zinc selenide angama-nanoscale 35.
3.Inqubo yangemva kokwelashwa
Ngemva kokusabela, yafakwa i-centrifuge, yagezwa nge-ammonia encibilikisiwe (80 °C), i-methanol, yabe isiyomiswa nge-vacuum (120 °C, P₂O₅).i-btaini-powder > 99.9% ubumsulwa 13.
2. Indlela yokufaka umusi wamakhemikhali
1.Ukwelashwa kwangaphambili kwezinto ezingavuthiwe
o Ubumsulwa bezinto zokusetshenziswa ze-zinc bungu-≥ 99.99% futhi bubekwe endaweni yokubethela i-graphite
o Igesi ye-hydrogen selenide ithuthwa yi-argon gas carry6.
2.Ukulawula izinga lokushisa
o Indawo yokuhwamuka kwe-zinc: 850-900°C
o Indawo yokubeka: 450-500°C
Ukufakwa kwe-zinc vapor kanye ne-hydrogen selenide ngendlela eqondiswayo ngokwe-gradient yokushisa 6.
3.Amapharamitha egesi
o Ukugeleza kwe-Argon: 5-10 L/min
o Ukucindezela okuyingxenye kwe-hydrogen selenide:0.1-0.3 atm
Amazinga okufakwa angafinyelela ku-0.5-1.2 mm/h, okuholela ekwakhekeni kwe-polycrystalline zinc selenide engu-60-100 mm ubukhulu..
3. Indlela yokuhlanganisa ngqo yesigaba esiqinile
1. Okuluhlazaukuphathwa kwezinto
Isixazululo se-zinc chloride sahlanganiswa nesisombululo se-oxalic acid ukuze sakhe i-zinc oxalate precipitate, eyomisiwe futhi yagaywa yaxutshwa ne-selenium powder ngesilinganiso esingu-1:1.05 molar 4..
2.Amapharamitha okusabela kokushisa
o Izinga lokushisa lesithando se-vacuum tube: 600-650°C
o Gcina isikhathi sifudumele: amahora angu-4-6
Impuphu ye-zinc selenide enosayizi wezinhlayiya ezingu-2-10 μm ikhiqizwa ukusabela kokusabalala kwesigaba esiqinile 4.
Ukuqhathaniswa kwezinqubo ezibalulekile
| indlela | I-topography yomkhiqizo | Usayizi wezinhlayiya/ukujiya | Ubukristali | Izinkambu zesicelo |
| Indlela ye-Solvothermal 35 | Ama-nanoball/izinduku | 20-100 nm | I-sphalerite yama-cubic | Amadivayisi e-Optoelectronic |
| Ukufakwa komusi 6 | Amabhulokhi e-Polycrystalline | 60-100 mm | Isakhiwo esinama-hexagonal | I-infrared optics |
| Indlela yesigaba esiqinile 4 | Izimpushana ezinobukhulu be-micron | 2-10 μm | Isigaba se-cubic | Izinto ezisetshenziswayo ze-infrared |
Amaphuzu abalulekile okulawula inqubo ekhethekile: indlela ye-solvothermal idinga ukwengeza ama-surfactant afana ne-oleic acid ukulawula isimo se-5, kanti ukufakwa komhwamuko kudinga ukuthi ubulukhuni be-substrate bube < Ra20 ukuqinisekisa ukufana kokufakwa 6.
1. Ukufakwa komhwamuko ngokomzimba (I-PVD).
1.Indlela Yobuchwepheshe
o Izinto eziluhlaza ze-Zinc selenide ziyaphefumula endaweni evalekile bese zifakwa phezu kwendawo engaphansi komhlaba kusetshenziswa ubuchwepheshe bokupompa noma bokuhwamuka kokushisa12.
o Imithombo yokuhwamuka kwe-zinc ne-selenium ishiswa ngezinga lokushisa elihlukene (indawo yokuhwamuka kwe-zinc: 800–850 °C, indawo yokuhwamuka kwe-selenium: 450–500 °C), kanti isilinganiso se-stoichiometric silawulwa ngokulawula izinga lokuhwamuka.12.
2.Ukulawula ipharamitha
o I-vacuum: ≤1×10⁻³ Pa
o Izinga lokushisa eliphansi: 200–400°C
o Izinga lokufaka imali:0.2–1.0 nm/s
Amafilimu e-zinc selenide anobukhulu obungu-50–500 nm angalungiselelwa ukusetshenziswa kuma-infrared optics 25.
2Indlela yokugaya ibhola ngomshini
1.Ukuphathwa kwezinto ezingavuthiwe
o Impuphu ye-zinc (ubumsulwa≥99.9%) ixutshwa nempuphu ye-selenium ngesilinganiso se-molar esingu-1:1 bese ifakwa ebhodweni lokugaya ibhola lensimbi engagqwali 23.
2.Amapharamitha enqubo
o Isikhathi sokugaya ibhola: amahora ayi-10–20
Isivinini: 300–500 rpm
o Isilinganiso se-Pellet: 10:1 (amabhola okugaya e-zirconia).
Ama-nanoparticle e-Zinc selenide anosayizi wezinhlayiya ongu-50–200 nm akhiqizwa ukusabela kokuhlanganiswa kwemishini, ngobumsulwa obungu->99% 23.
3. Indlela yokucindezela ngokucindezela okushisayo
1.Ukulungiselela i-precursor
o I-Zinc selenide nanopowder (usayizi wezinhlayiya < 100 nm) eyenziwe ngendlela ye-solvothermal njengezinto zokusetshenziswa 4.
2.Amapharamitha okuhlanza
o Izinga Lokushisa: 800–1000°C
o Ukucindezela: 30–50 MPa
o Gcina kufudumele: amahora angu-2–4
Umkhiqizo unobuningi obungu-> 98% futhi ungacutshungulwa ube izingxenye ezinkulu ze-optical ezifana namafasitela e-infrared noma amalensi 45.
4. I-epitaxy ye-molecular beam (I-MBE).
1.Indawo yokuhlanza ephezulu kakhulu
o I-vacuum: ≤1×10⁻⁷ Pa
o Imishayo yama-molecule ye-zinc ne-selenium ilawula ngokunembile ukugeleza komthombo wokuhwamuka komsebe we-electron6.
2.Imingcele yokukhula
o Izinga lokushisa eliyisisekelo: 300–500°C (ama-GaA noma ama-sapphire substrates avame ukusetshenziswa).
o Izinga lokukhula:0.1–0.5 nm/s
Amafilimu amancane e-single-crystal zinc selenide angalungiswa ebangeni lokujiya elingu-0.1–5 μm kumadivayisi e-optoelectronic anembile kakhulu56.
Isikhathi sokuthunyelwe: Ephreli-23-2025