Ana girma lu'ulu'u na MoSe2 ta amfani da fasahohi biyu daban-daban ta hanyar jigilar tururi na sinadarai (CVT) ko haɓaka yankin kwarara (duba bayanin waɗannan hanyoyin biyu a ƙasa). Ana kula da waɗannan lu'ulu'u a matsayin ƙa'idodin zinariya a filin kayan 2D saboda cikakkiyar halayyar gani da lantarki. Ana sanar da lu'ulu'u na MoSe2 da mallakar ƙwanƙwasu PL bandwidths, nuna tsabtace PL spectra, babu kafadun exciton da aka ɗaure a ƙananan zafin jiki, babban motsi na mai ɗaukar kaya, ƙwanƙwasu masu tsabta da ƙarfi na XRD, da adadin lahani (duba sakamakon da aka buga da kuma hanyoyin da ke ƙasa na CVT da Flux). Waɗannan su ne kawai lu'ulu'u na MoSe2 da ke samuwa a kasuwanci tare da tabbatar da amsar Valley Electronic, PL mai kaifi, da kyakkyawar amsar lantarki.

Abubuwan da ke cikin lu'ulu'u guda ɗaya vdW MoSe2

Hanyar girma tana da mahimmanci> Yankin gudanarwa ko hanyar girma ta CVT? Gurɓataccen halides da lahani a cikin lu'ulu'u masu layered sanannun dalili ne na rage motsi na lantarki, rage amsar anisotropic, rashin haɗuwa da e-h, ƙananan fitar da PL, da ƙananan sha na gani. Fasahar yankin flux fasaha ce mai kyautar halide da ake amfani da ita don haɗa lu'ulu'u na vdW na gaske. Wannan hanyar ta bambanta kanta da fasahar sufuri na tururi na sinadarai (CVT) a cikin wannan batun: CVT hanyar haɓaka ce mai sauri (~ makonni 2) amma tana nuna ingancin crystalline mai rauni kuma haɓaka lahani ya kai 1E11 zuwa 1E12 cm-2. Sabanin haka, hanyar kwarara tana ɗaukar dogon (~ watanni 3) lokacin girma, amma tana tabbatar da jinkirin crystallization don cikakken tsarin atomic, da kuma girman crystal kyauta tare da haɗin hankali na lahani kamar 1E9 - 1E10 cm-2. A lokacin duba kawai jihar irin tsarin girma da aka fi so. Sai dai idan aka ambata akasin haka, 2Dsemiconductors suna jigilar da lu'ulu'u na yankin Flux a matsayin zaɓi na tsoho.

http://meetings.aps.org/Meeting/MAR18/Session/K36.3

http://meetings.aps.org/Meeting/MAR17/Session/V1.14

Bugunan daga wannan samfurin

Summary: Bugunan daga MIT, Berkeley, Stanford, Rice, da ƙungiyoyin Harvard a manyan mujallu kamar Nature, Nature Communications, Nano Letters, da Advanced Materials

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