1. Hoʻohuihui Solvothermal
1. Makalakio mea?
Ua hui ʻia ka pauka zinc a me ka pauka selenium ma ka lakio molar 1:1, a ua hoʻohui ʻia ka wai deionized a i ʻole ka ethylene glycol ma ke ʻano he medium solvent 35..
2.Nā kūlana pane
o Mahana pane: 180-220°C
o Ka manawa pane: 12-24 hola
o Kaomi: E mālama i ke kaomi i hana ʻia e ʻoe iho i loko o ka ipu hao pani
Hoʻomaʻalahi ʻia ka hui pololei ʻana o ka zinc a me ka selenium e ka hoʻomehana ʻana e hana i nā kristal nanoscale zinc selenide 35.
3.Kaʻina hana ma hope o ka mālama ʻana?
Ma hope o ka hopena, ua centrifuged ʻia, holoi ʻia me ka ammonia dilute (80 °C), methanol, a hoʻomaloʻo ʻia me ka vacuum (120 °C, P₂O₅).ʻōpūhe pauka > 99.9% maʻemaʻe 13.
2. Ke ʻano hoʻokomo mahu kemika
1.Ka mālama mua ʻana i nā mea maka
o ʻO ka maʻemaʻe o ka mea maka zinc he ≥ 99.99% a waiho ʻia i loko o kahi ipu hoʻoheheʻe graphite
o Lawe ʻia ke kinoea hydrogen selenide e ka lawe ʻana o ke kinoea argon6.
2.Kaohi mahana
ʻO ka ʻāpana hoʻomake zinc: 850-900°C
o Wahi waiho ʻana: 450-500°C
Ka waiho ʻana o ka mahu zinc a me ka hydrogen selenide ma o ka gradient mahana 6.
3.Nā palena kinoea
o Ke kahe ʻana o Argon: 5-10 L/min
o Kaomi hapa o ka hydrogen selenide:0.1-0.3 ʻātoma
Hiki i nā helu hoʻokahe ke piʻi i ka 0.5-1.2 mm/h, e hopena ana i ka hoʻokumu ʻia ʻana o ka polycrystalline zinc selenide 6 he 60-100 mm ka mānoanoa..
3. Ke ʻano hana hoʻohui pololei paʻa-pae
1. Makalawelawe ʻana i nā mea?
Ua hoʻopili ʻia ka hopena zinc chloride me ka hopena waikawa oxalic e hana i kahi zinc oxalate precipitate, kahi i hoʻomaloʻo ʻia a wili ʻia a hui pū ʻia me ka pauka selenium ma ka lakio o 1:1.05 molar 4..
2.Nā palena hana wela
o Ka mahana o ka umu ʻōmole hakahaka: 600-650°C
o E mālama i ka manawa mahana: 4-6 hola
Hoʻopuka ʻia ka pauka zinc selenide me ka nui o ka ʻāpana o 2-10 μm e ka hopena hoʻolaha pae paʻa 4.
Hoʻohālikelike o nā kaʻina hana koʻikoʻi
| ʻano hana | ʻO ke ʻano o ka huahana | Ka nui o ka ʻāpana/mānoanoa | Ka kristalina | Nā kahua o ka noi |
| ʻAno hana Solvothermal 35 | Nā Nanoballs/koʻokoʻo | 20-100 nm | ʻO ka sphalerite cubic | Nā mea hana optoelectronic |
| Hoʻokomo mahu 6 | Nā poloka polycrystalline | 60-100 mm | ʻAno hexagonal | Nā maka infrared |
| ʻAno pae paʻa 4 | Nā pauka nui micron | 2-10 μm | Pae kūpika | Nā mea mua o ka mea infrared |
Nā kumu nui o ka kaohi hana kūikawā: pono ke ʻano solvothermal e hoʻohui i nā surfactants e like me ka oleic acid e hoʻoponopono i ke ʻano 5, a koi ka waiho ʻana o ka mahu i ka substrate roughness e < Ra20 e hōʻoia i ka like o ka waiho ʻana 6.
1. Ka waiho ʻana o ka mahu kino (PVD).
1.Ala ʻenehana
o Hoʻomake ʻia ka mea maka zinc selenide i loko o kahi ʻano vacuum a waiho ʻia ma luna o ka ʻili o ka substrate me ka hoʻohana ʻana i ka ʻenehana sputtering a i ʻole ka thermal evaporation12.
o Hoʻomehana ʻia nā kumu mahu o ka zinc a me ka selenium i nā gradients mahana like ʻole (ʻāpana mahu zinc: 800–850 °C, ʻāpana mahu selenium: 450–500 °C), a ua hoʻomalu ʻia ka lakio stoichiometric ma ke kāohi ʻana i ka wikiwiki o ka mahu.?12.
2.Ka mana hoʻomalu palena
o Vacuum: ≤1 × 10⁻³ Pa
Mahana kumu: 200–400°C
o Ka helu waiho ʻana:0.2–1.0 nm/s
Hiki ke hoʻomākaukau ʻia nā kiʻiʻoniʻoni zinc selenide me ka mānoanoa o 50-500 nm no ka hoʻohana ʻana i nā optics infrared 25.
2Ke ʻano wili pōpō mīkini
1.Ka lawelawe ʻana i nā mea maka
o Ua hui ʻia ka pauka zinc (maʻemaʻe ≥99.9%) me ka pauka selenium ma ka lakio molar 1:1 a hoʻouka ʻia i loko o kahi ʻōmole wili kila kila 23.
2.Nā palena hana
o Ka manawa wili pōpō: 10–20 mau hola
Ka wikiwiki: 300–500 rpm
o Laki o ka pellet: 10:1 (nā pōpō wili zirconia).
Ua hoʻohua ʻia nā nanoparticles zinc selenide me ka nui o ka ʻāpana o 50-200 nm e nā hopena alloying mechanical, me ka maʻemaʻe o >99% 23.
3. Ke ʻano hana sintering kaomi wela
1.Ka hoʻomākaukau ʻana o ka mea mua
o Zinc selenide nanopowder (ka nui o ka ʻāpana < 100 nm) i hana ʻia e ke ʻano solvothermal ma ke ʻano he mea maka 4.
2.Nā palena hoʻoheheʻe
Mahana: 800–1000°C
Kaomi: 30–50 MPa
o E hoʻomehana: 2–4 hola
ʻO ka nui o ka huahana he > 98% a hiki ke hana ʻia i nā ʻāpana optical nui e like me nā puka makani infrared a i ʻole nā aniani 45.
4. ʻO ka epitaxy kukuna molekala (MBE).
1.Kaiapuni hakahaka kiʻekiʻe loa
o Vacuum: ≤1 × 10⁻⁷ Pa
o Hoʻokele pololei nā kukuna molekala zinc a me selenium i ke kahe ʻana ma o ke kumu mahu kukuna uila6.
2.Nā palena ulu
o Mahana kumu: 300–500°C (hoʻohana pinepine ʻia nā GaAs a i ʻole nā mea hana sapphire).
o Ka wikiwiki o ka ulu ʻana:0.1–0.5 nm/s
Hiki ke hoʻomākaukau ʻia nā ʻili lahilahi zinc selenide kristal hoʻokahi i ka pae mānoanoa o 0.1-5 μm no nā mea hana optoelectronic kiʻekiʻe56.
Ka manawa hoʻouna: ʻApelila-23-2025