Trimethylaluminum(TMAI)
Trimethylalumine (TMAI)
| Ma'ana iri ɗaya | Trimethylaluminum, Aluminum Trimethyl, Aluminum Trimethanide, TMA, TMAL, AlMe3, Ziegler-Natta Catalyst, Trimethyl-, Trimethylalane. |
| Lambar Lambar Waya | 75-24-1 |
| Tsarin sinadarai | C6H18Al2 |
| Molar nauyi | 144.17 g/mol, 72.09 g/mol (C3H9Al) |
| Bayyanar | Ruwa mara launi |
| Yawan yawa | 0.752 g/cm3 |
| Wurin narkewa | 15℃ (59 ℉; 288K) |
| Wurin tafasa | 125--130℃ (257--266 ℉, 398--403K) |
| Narkewa a cikin ruwa | Martani |
| Matsi na tururi | 1.2 kPa (20 ℃), 9.24 kPa (60 ℃) |
| Danko | 1.12 cP (20 ℃), 0.9 cP (30 ℃) |
Trimethylaluminum (TMAl), a matsayin tushen ƙarfe-organic (MO), ana amfani da shi sosai a masana'antar semiconductor kuma yana aiki a matsayin babban abin da ke haifar da ajiyar Layer na atomic (ALD), ajiyar tururin sinadarai (CVD), da kuma ajiyar tururin sinadarai na ƙarfe-organic (MOCVD). Ana amfani da shi don shirya fina-finai masu ɗauke da aluminum masu tsarki, kamar aluminum oxide da aluminum nitride. Bugu da ƙari, TMMal yana samun aikace-aikace mai yawa a matsayin mai kara kuzari da kuma wakilin taimako a cikin haɗakar kwayoyin halitta da halayen polymerization.
Trimethylaluminum (TMAI) yana aiki a matsayin abin da ke ƙara yawan sinadarin aluminum oxide kuma yana aiki a matsayin mai haɓaka Ziegler-Natta. Hakanan shine abin da aka fi amfani da shi a aluminum wajen samar da epitaxy na ƙarfe-organic vapor-phase (MOVPE). Bugu da ƙari, TMAI yana aiki a matsayin wakilin methylation kuma ana fitar da shi daga rokoki masu sauti akai-akai a matsayin abin ganowa don nazarin yanayin iska na sama.
Bayanin kasuwanci na 99.9999% Trimethylaluminum - Ƙarancin silicon da ƙarancin iskar oxygen (6N TAMI-Ƙarancin Si da Ƙarancin Ox)
| Sinadarin | Sakamako | Ƙayyadewa | Sinadarin | Sakamako | Ƙayyadewa | Sinadarin | Sakamako | Ƙayyadewa |
| Ag | ND | <0.03 | Cr | ND | <0.02 | S | ND | <0.05 |
| As | ND | <0.03 | Cu | ND | <0.02 | Sb | ND | <0.05 |
| Au | ND | <0.02 | Fe | ND | <0.04 | Si | ND | ≤0.003 |
| B | ND | <0.03 | Ge | ND | <0.05 | Sn | ND | <0.05 |
| Ba | ND | <0.02 | Hg | ND | <0.03 | Sr | ND | <0.03 |
| Be | ND | <0.02 | La | ND | <0.02 | Ti | ND | <0.05 |
| Bi | ND | <0.03 | Mg | ND | <0.02 | V | ND | <0.03 |
| Ca | ND | <0.03 | Mn | ND | <0.03 | Zn | ND | <0.05 |
| Cd | ND | <0.02 | Ni | ND | <0.03 | |||
| Co | ND | <0.02 | Pb | ND | <0.03 |
Lura:
Fiye da komai, ƙimar PPM ta nauyi akan ƙarfe, da ND = ba a gano ba
Hanyar Bincike: ICP-OES/ICP-MS
Sakamakon FT-NMR (LOD don FT-NMR na halitta da na iskar oxygen shine 0.1ppm):
Garantin iskar oxygen <0.2 ppm (An auna a FT-NMR)
1. Ba a gano wani abu mai datti na halitta ba
2. Ba a gano ƙazanta mai iskar oxygen ba
Menene amfani da Trimethylaluminum (TMAI)?
Trimethylaluminum (TMA)- Aikace-aikace da Amfani
Trimethylaluminum (TMA) wani sinadari ne mai matuƙar tsarki wanda ke aiki a matsayin muhimmin abu a wasu daga cikin manyan sassan masana'antu. Mahimmancin amsawarsa da matsin tururi ya sa ya zama abin da ake so don sanya ainihin fina-finan da ke ɗauke da aluminum a cikin fasahar lantarki da makamashi, da kuma muhimmin sashi a cikin samar da polyolefin.
An ƙera TMA ɗinmu bisa ga ƙa'idodin tsarki mafi tsauri, tare da cikakken iko akan ƙazanta na asali, iskar oxygen, da na halitta don tabbatar da ingantaccen aiki a cikin aikace-aikacenku mafi wahala.
Manyan Aikace-aikace da Masana'antu:
1. Ƙirƙirar Semiconductor & Microelectronics
A cikin masana'antar semiconductor, TMA yana da matuƙar muhimmanci wajen adana siririn fim masu daidaiton sikelin atomic.
* High-k Dielectrics: Ana amfani da shi a cikin Atomic Layer Deposition (ALD) da Chemical Tururi Deposition (CVD) don haɓaka siraran fim ɗin aluminum oxide (Al₂O₃), waɗanda ke aiki a matsayin high-k gate dielectrics a cikin ci gaba transistors da na'urorin ƙwaƙwalwa.
* Masu haɗa Semiconductors: Tushen aluminum da aka fi so a cikin Metalorganic Vapor Phase Epitaxy (MOVPE) don haɓaka semiconductors masu aiki mai ƙarfi na III-V. Waɗannan kayan suna da mahimmanci ga:
* Na'urorin Lantarki Masu Yawan Mita: (misali, AlGaAs, AlInGaP)
* Optoelectronics: (misali, AlGaN, AlInGaN)
2. Tsabtataccen Makamashi & Na'urorin ɗaukar hoto
TMA yana ba da damar ingantaccen aiki da dorewa a fasahar makamashin rana.
* Layukan Passivation na Sama: An adana su ta hanyar ALD ko Plasma-Enhanced CVD (PECVD), fina-finan aluminum oxide (Al₂O₃) daga TMA suna ba da kyakkyawan yanayin saman don ƙwayoyin hasken rana na silicon crystalline. Wannan yana rage haɗuwar mai ɗaukar caji sosai, yana haifar da gagarumin ci gaba a cikin ingancin canza ƙwayoyin halitta da kwanciyar hankali na dogon lokaci.
3. Hasken Haske da Nuni Mai Kyau (LED)
Samar da LEDs masu haske da kuma amfani da makamashi ya dogara ne akan TMA mai tsafta sosai.
* LED Epitaxy: Yana aiki azaman mai daidaita aluminum a cikin reactors na MOVPE don haɓaka yadudduka masu aiki (misali, AlGaN) a cikin shuɗi, kore, da ultraviolet LEDs.
* Na'urar Passivation: Ana amfani da shi don ajiye fim ɗin kariya na aluminum oxide ko aluminum nitride waɗanda ke haɓaka ingancin cirewar gani da kuma tsawaita rayuwar na'urorin LED.
4. Masana'antu Catalysis & Polymer Production
Muhimmancin masana'antar TMA ya samo asali ne daga rawar da take takawa wajen haɓaka tasirin iskar gas.
* Polyolefin Catalysis: Ita ce babban kayan farawa don haɗa Methylaluminoxane (MAO), wani muhimmin mai haɓaka haɗin gwiwa a cikin tsarin Ziegler-Natta da metallocene catalyst. Waɗannan tsarin suna samar da mafi yawan robobi na polyethylene da polypropylene na duniya.
Muhimman Halaye & Fa'idodi:
* Tsarkakakken Tsafta: An sarrafa shi da kyau don rage ƙazanta da ke lalata aikin lantarki da ayyukan catalytic.
* Babban Precursor: Yana bayar da kyakkyawan canjin yanayi, kwanciyar hankali na zafi, da kuma tsabtataccen halayen ruɓewa don adana fim mai inganci.
* Ma'aunin Masana'antu: Tushen aluminum da aka kafa, amintacce don hanyoyin MOVPE, ALD, da CVD a duk faɗin wuraren bincike da samarwa na duniya.
* Tushen Roba: Babban kayan da aka yi amfani da shi wajen samar da polymers masu amfani da polyolefin.
Bayanin Gargaɗi: Trimethylaluminum abu ne mai laushi da laushi wanda ke buƙatar takamaiman ka'idoji na sarrafawa da aminci. Bayanin da aka bayar don dalilai ne na bayyanawa. Hakkin mai amfani ne ya kula da wannan kayan bisa ga duk ƙa'idodin aminci da suka dace da kuma tantance dacewarsa ga takamaiman aikace-aikacen.
