1. I-Crystal Framework kanye ne-Split Anisotropy
1.1 I-2H kanye ne-1T Polymorphs: I-Architectural and Digital Duality
(I-Molybdenum Disulfide)
I-Molybdenum disulfide (I-MoS YESIBILI) iyi-split transition steel dichalcogenide (I-TMD) enefomula yamakhemikhali ehlanganisa i-athomu eyodwa ye-molybdenum ehlanganiswe phakathi kwama-athomu amabili esulfure ekuxhumaneni kweprismatic engunxantathu, ukwakha i-covalently bonded S– Mo– S amashidi.
Lawa ma-monolayers athile anqwabelene aqonde phezulu futhi abanjwe omunye nomunye ngamandla abuthaka e-van der Waals, okuvumela ukushear kwe-interlayer okulula kakhulu kanye ne-exfoliation phansi kuze kube mncane nge-athomu enezinhlangothi ezimbili (2D) amakristalu– umsebenzi wezakhiwo oyinhloko emisebenzini yawo ehlukahlukene ewusizo.
I-MoS ₂ ikhona ngezinhlobo eziningi ze-polymorphic, ezinze kakhulu ngokwe-thermodynamic yisiteji se-semiconducting 2H (i-symmetry ene-hexagonal), lapho ungqimba ngalunye lubonisa ibhendi eqondile ye ~ 1.8 I-eV ohlotsheni lwe-monolayer eshintshela ku-bandgap engaqondile (~ 1.3 eV) i-wholesale, into ebalulekile ekusetshenzisweni kwe-optoelectronic.
Ngokolunye uhlangothi, isigaba se-metastable 1T (ibhalansi ye-tetragonal) ithatha i-octahedral coordination futhi isebenza njengomqhubi wensimbi ngenxa yomnikelo we-electron ovela kuma-athomu esibabule, okwenza kube nokwenzeka ekusetshenzisweni kwe-electrocatalysis kanye nama-conductive compounds.
Ukushintsha kwesiteji phakathi kwe-2H ne-1T kungenziwa ngamakhemikhali, electrochemically, noma ngokuklama kwengcindezi, ukuhlinzeka ngenkundla eguqulekayo yokuklama amadivaysi asebenza ngezinto eziningi.
Amandla okusekela nokuphethini lezi zigaba ngokwendawo ngaphakathi kwe-flake eyodwa avula izindlela ze-heterostructures esendizeni enezizinda ze-elekthronikhi ezihlukile..
1.2 Amaphutha, I-Doping, kanye neSide States
Ukusebenza kwe-MoS yesibili ezinhlelweni ze-catalytic nedijithali kuyizinkinga eziqaphela kakhulu zesikali se-athomu kanye nama-dopants..
Izinkinga zamaphuzu angaphakathi ezifana nokuvuleka kwesibabule kusebenza njengabahlanganyeli be-electron, ukukhulisa ukuqhutshwa kohlobo lwe-n nokusebenza njengamawebhusayithi asebenzayo wokusabela kokuthuthukiswa kwe-hydrogen (WAKHE) ekuhlukaniseni amanzi.
Imingcele yokusanhlamvu kanye nezinkinga zolayini zinganqanda ukuthuthwa kwezindleko noma zikhiqize imizila yendawo, bethembele ekucushweni kwabo kwe-athomu.
I-doping elawulwayo enezinsimbi zokushintsha (isib., Re, Nb) noma ama-chalcogens (isib., Se) ivumela ukulungiswa kahle kohlaka lwebhendi, ukugxila komhlinzeki, kanye nemiphumela ehlanganisa i-spin-orbit.
Ngokuphawulekayo, izinhlangothi ze-MoS ama-nanosheet amabili, ikakhulukazi insimbi i-Mo-terinated (10– 10) imiphetho, bonisa umsebenzi omkhulu kakhulu we-catalytic kunendiza ye-inert basal, inspiring the layout of nanostructured stimulants with made best use of edge exposure.
( I-Molybdenum Disulfide)
These defect-engineered systems exemplify how atomic-level manipulation can change a normally happening mineral into a high-performance practical material.
2. I-Synthesis kanye Nanofabrication Strategies
2.1 Bulk and Thin-Film Manufacturing Approaches
I-molybdenite yemvelo, the mineral form of MoS ₂, has actually been used for years as a strong lube, but modern-day applications require high-purity, structurally controlled artificial kinds.
Ukufakwa komhwamuko wamakhemikhali (I-CVD) is the leading technique for generating large-area, high-crystallinity monolayer and few-layer MoS ₂ films on substrates such as SiO TWO/ Si, isafire, or adaptable polymers.
Ku-CVD, i-molybdenum ne-sulphur precursors (isib., I-MoO four ne-S powder) are vaporized at heats (700– 1000 °C )under controlled environments, okuvumela ukuthuthukiswa kwesendlalelo ngesendlalelo ezinobukhulu besizinda esiguqulekayo nokuqondanisa.
I-Mechanical exfoliation (“indlela ye-scotch tape”) iyaqhubeka nokuba yindinganiso yamasampuli ebanga locwaningo, ukukhiqiza ama-monolayers ahlanzeke kakhulu anamaphutha asemaceleni, nakuba ingenayo i-scalability.
Ukucwecwa kwesigaba samanzi, kufaka phakathi i-sonication noma i-shear blending of mass crystals ku-solvents noma izixazululo ze-surfactant, ikhiqiza ama-colloidal dispersions ama-nanosheet anezendlalelo ezimbalwa afanele ukuqedwa, izinhlanganisela, kanye nokwakheka kukayinki.
2.2 Inhlanganisela ye-Heterostructure kanye nephethini yedivayisi
Amandla eqiniso e-MoS ₂ avela lapho ehlanganiswa ngqo kuma-heterostructures aqondile noma angemuva nezinye izinto ezahlukahlukene ze-2D njenge-graphene, i-boron nitride ene-hexagonal (h-BN), noma i-WSe ₂.
Lawa ma-heterostructures e-van der Waals anika amandla ukwakheka kwamadivayisi anembile ngokwe-athomu, okuhlanganisa umhubhe transistors, ama-photodetectors, nama-diode akhipha ukukhanya (Ama-LED), lapho imali ye-interlayer nokudluliswa kwamandla kungakhiwa khona.
Amasu we-lithographic patterning kanye ne-etching avumela ukwakhiwa kwama-nanoribhoni, amachashazi e-quantum, kanye nama-transistors asebenza ensimini (Ama-FET) ezinosayizi besiteshi ukuya kumashumi ama-nanometer.
I-Dielectric encapsulation ne-h-BN ivikela i-MoS ₂ ekubhujisweni kwemvelo futhi kunciphisa ukusabalala kwezindleko, kuthuthukisa kakhulu ukuguquguquka komhlinzeki wesevisi nokuphepha kwamathuluzi.
Le ntuthuko yokwakha ibalulekile ekuguquleni i-MoS emibili isuke ekubeni nelukuluku lelebhu iye engxenyeni engenzeka esizukulwaneni esilandelayo se-nanoelectronics..
3. Izici Ezisebenzayo kanye Nezinqubo Zomzimba
3.1 Imikhuba ye-Tribological kanye Nokugcotshwa Okunamandla
Phakathi kwezicelo ezindala nezihlala isikhathi eside ze-MoS ₂ ifana ne-lube eyomile eqinile ezindaweni ezimbi lapho uwoyela owuketshezi wehla khona.– njenge-vacuum cleaner, heats, or cryogenic conditions.
The reduced interlayer shear strength of the van der Waals void permits very easy sliding in between S– Mo– S izendlalelo, okwenza i-coefficient yokuhlikihla yehliswe njengo-0.03– 0.06 under ideal problems.
Its performance is further enhanced by strong adhesion to metal surface areas and resistance to oxidation as much as ~ 350 ° C emoyeni, beyond which MoO five formation boosts wear.
MoS ₂ is widely used in aerospace systems, air pump, and gun components, typically used as a finish by means of burnishing, ukuphalaza, noma ukuhlanganiswa okuyinhlanganisela kube umatikuletsheni we-polymer.
Recent studies show that humidity can weaken lubricity by raising interlayer bond, prompting research right into hydrophobic coatings or hybrid lubes for better environmental stability.
3.2 Electronic and Optoelectronic Feedback
Njengesemiconductor enegebe eliqondile kuhlobo lwe-monolayer, I-MoS ₂ ibonisa ukusebenzisana okuqinile kokukhanya, ngama-coefficients wokumunca edlula 10 ⁵ amasentimitha ⁻¹ kanye nembuyiselo ye-quantum ephezulu ku-photoluminescence.
Lokhu kuyenza ifaneleke kuma-photodetectors e-ultrathin anezikhathi zesenzo esisheshayo kanye nezinga le-broadband lokuzwela, kusuka kokubonakalayo kuye kumaza aseduze ne-infrared.
Ama-transistors we-Field-effect asekelwe ku-MoS ye-monolayer ₂ abonisa izilinganiso zokuvula/ukuvala > 10 eziyisishiyagalombili kanye nezihlalo zabakhubazekile ezifika kumhlinzeki 500 amasentimitha ²/ V · s ezibonelweni ezimisiwe, nakuba ukusebenzisana kwe-substrate ngokuvamile kukhawulela amanani angokoqobo ku-1– 20 cm LESIBILI/ V · s.
I-Spin-valley ihlanganisa, umthelela wokusebenzelana okuqinile kwe-spin-obhithi kanye nebhalansi yokuguqulwa kwe-busted, inika amandla i-valleytronics– a novel paradigm for information inscribing utilizing the valley level of flexibility in momentum space.
These quantum phenomena setting MoS ₂ as a candidate for low-power logic, inkumbulo, and quantum computer aspects.
4. Izinhlelo zokusebenza Ezinamandla, I-Catalysis, kanye ne-Emerging Technologies
4.1 Electrocatalysis for Hydrogen Evolution Response (WAKHE)
MoS two has become an appealing non-precious choice to platinum in the hydrogen evolution reaction (WAKHE), an essential procedure in water electrolysis for green hydrogen production.
While the basal airplane is catalytically inert, edge sites and sulfur jobs display near-optimal hydrogen adsorption complimentary power (ΔG_H * ≈ 0), similar to Pt.
Nanostructuring techniques– such as developing up and down straightened nanosheets, defect-rich movies, or drugged hybrids with Ni or Co– maximize active website thickness and electric conductivity.
Uma ihlanganiswe kuma-electrode ane-conductive igcina njengama-carbon nanotubes noma i-graphene, I-MoS yesibili ifeza ukuminyana okuphezulu okukhona kanye nokuzinza okuhlala isikhathi eside ngaphansi kwezimo ezine-acidic noma ezingathathi hlangothi.
Ukuthuthukiswa okwengeziwe kutholwa ngokuzinzisa isigaba sensimbi 1T, okuthuthukisa ukusebenza kwangaphakathi futhi kwembule amawebhusayithi anamandla angeziwe.
4.2 Amadivayisi Kagesi Ahlukahlukene, Izinzwa, kanye namadivayisi e-Quantum
Ukuguquguquka komshini, obala, kanye nengxenye ephezulu ukusuka phezulu kuye kuvolumu ye-MoS emibili iyenza ibe yinhle kakhulu kumadivayisi kagesi aguquguqukayo futhi agqokekayo.
Ama-Transistors, izifunda ezinengqondo, futhi amathuluzi enkumbulo abonisiwe empeleni kuma-substratum epulasitiki, ukuvumela izikrini zokubonisa ezigobekayo, imibukiso yezempilo, kanye namayunithi enzwa we-IoT.
Amayunithi ezinzwa zegesi asuselwa ku-MoS TWO abonisa izinga eliphezulu lokuzwela kokuthi OKUBILI, NH EZIMBILI, kanye no-H TWO O njengomphumela wokudluliswa kwebhili ku-adsorption yamangqamuzana, ngezikhathi zokuphendula ohlwini olungaphansi lwesibili.
Ngobuchwepheshe besimanje be-quantum, I-MoS ibamba ama-exciton asendaweni kanye nama-trions emazingeni okushisa e-cryogenic, kanye nezinkambu ze-pseudomagnetic ezibangelwa ubunzima zingabamba abathwali, inika amandla ama-emitter e-photon eyodwa namachashazi we-quantum.
Lokhu kukhula kugqamisa i-MoS emibili hhayi nje njengomkhiqizo osebenzayo kodwa njengohlelo lokuhlola i-physics ebalulekile ezilinganisweni ezincishisiwe..
Ngokufigqiwe, I-molybdenum disulfide iyisibonelo sokuhlanganiswa kwesayensi yemikhiqizo engaphelelwa yisikhathi nobunjiniyela be-quantum.
Kusukela endimeni yayo yakudala njengento yokugcoba kuya ekukhululweni kwayo kosuku lwanamuhla kumishini kagesi emincane ye-athomu namasistimu kagesi, I-MoS ₂ isalokhu ichaza kabusha imingcele yalokho okungenzeka ngesitayela semikhiqizo ye-nanoscale.
Njenge-synthesis, ukwenziwa kwezinhlamvu, and assimilation techniques advancement, its effect across science and innovation is poised to expand also better.
5. Umhlinzeki
I-TRUNANO ingumkhiqizi owaziwa umhlaba wonke we-Molybdenum Disulfide futhi ehlinzeka ngezinhlanganisela ezingaphezu kwe 12 iminyaka yobungcweti bekhwalithi ephezulu kakhulu yama-nanomaterials namanye amakhemikhali. Le nkampani ithuthukisa izinhlobonhlobo zezinto eziyimpuphu namakhemikhali. Nikeza isevisi ye-OEM. Uma udinga iMolybdenum Disulfide yekhwalithi ephezulu, sicela ukhululeke ukuxhumana nathi. Ungachofoza umkhiqizo ukuze uxhumane nathi.
Omaka: I-Molybdenum Disulfide, I-nano molybdenum disulfide, I-MoS2
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