An riga an san Graphene da ƙarfi sosai, duk da cewa atom ɗaya ne kawai kauri. To ta yaya za a iya ƙara masa ƙarfi? Ta hanyar mayar da shi zanen lu'u-lu'u, ba shakka. Masu bincike a Koriya ta Kudu yanzu sun ƙirƙiro wata sabuwar hanya ta canza graphene zuwa fina-finan lu'u-lu'u mafi siriri, ba tare da amfani da matsin lamba mai yawa ba.
Graphene, graphite da lu'u-lu'u duk an yi su ne da abu ɗaya - carbon - amma bambancin da ke tsakanin waɗannan kayan shine yadda ake shirya ƙwayoyin carbon da haɗa su wuri ɗaya. Graphene takardar carbon ce wadda take da kauri guda ɗaya kawai, tare da haɗin gwiwa mai ƙarfi a tsakaninsu a kwance. Graphite an yi shi ne da zanen graphene da aka tara a saman juna, tare da haɗin gwiwa mai ƙarfi a cikin kowane zanen amma waɗanda ba su da ƙarfi suna haɗa zanen gado daban-daban. Kuma a cikin lu'u-lu'u, ƙwayoyin carbon suna da alaƙa sosai a girma uku, suna ƙirƙirar abu mai tauri sosai.
Idan aka ƙarfafa haɗin da ke tsakanin layukan graphene, zai iya zama nau'in lu'u-lu'u mai siffar 2D wanda aka sani da diamane. Matsalar ita ce, wannan yawanci ba abu ne mai sauƙi ba. Hanya ɗaya tana buƙatar matsin lamba mai yawa, kuma da zarar an cire wannan matsin lambar, kayan zai koma graphene. Wasu bincike sun ƙara ƙwayoyin hydrogen a cikin graphene, amma hakan yana sa ya yi wuya a sarrafa haɗin.
Don sabon binciken, masu bincike a Cibiyar Kimiyyar Asali (IBS) da Cibiyar Kimiyya da Fasaha ta Ƙasa ta Ulsan (UNIST) sun musanya hydrogen da fluorine. Manufar ita ce ta hanyar fallasa graphene mai siffar bilayer zuwa fluorine, yana haɗa layukan biyu, yana ƙirƙirar alaƙa mai ƙarfi a tsakaninsu.
Ƙungiyar ta fara da ƙirƙirar graphene mai siffar bilayer ta amfani da hanyar da aka gwada da gaske ta hanyar adana tururin sinadarai (CVD), a kan wani abu da aka yi da jan ƙarfe da nickel. Sannan, sun fallasa graphene ga tururin xenon difluoride. Fluorine da ke cikin wannan cakuda yana manne da ƙwayoyin carbon, yana ƙarfafa alaƙa tsakanin layukan graphene kuma yana ƙirƙirar wani Layer mai siriri na lu'u-lu'u mai launin fluoride, wanda aka sani da F-diamane.
Sabuwar hanyar ta fi sauƙi fiye da sauran, wanda hakan zai sa ta zama mai sauƙin girma. Zane-zanen lu'u-lu'u masu siriri sosai na iya samar da kayan lantarki masu ƙarfi, ƙanana da sassauƙa, musamman a matsayin mai ɗaukar rabin-gudana mai faɗi.
"Wannan hanyar fluoride mai sauƙi tana aiki a yanayin zafi kusa da ɗaki kuma a ƙarƙashin ƙaramin matsin lamba ba tare da amfani da plasma ko wasu hanyoyin kunna iskar gas ba, don haka yana rage yiwuwar haifar da lahani," in ji Pavel V. Bakharev, marubucin farko na binciken.
Lokacin Saƙo: Afrilu-24-2020