Sanyayar lantarki mai ƙarfi a cikin kalmomin wayoyin hannu na iya zama babban kalubale. Masu bincike a Sarki Abdullah na Kimiyya da fasaha sun kirkiro da sauri da inganci don ƙirƙirar kayan carbon da suka dace don watsa zafi daga na'urorin lantarki. Wannan kayan masarufi na iya samun wasu aikace-aikace, daga manufofin gas zuwa bangarorin hasken rana.
Yawancin na'urori na lantarki suna amfani da fina-finai masu hoto don gudanar da kayan zane da kuma disseippate zafin da aka samar ta hanyar lantarki. Kodayake zane zane ne na halitta, sarrafa zafi a cikin lantarki shine aikace-aikacen neman aiki kuma sau da yawa ya dogara da amfani da fina-finai mai inganci. "Koyaya, hanyar yin waɗannan fina-finai na zane-zane suna amfani da polymers kamar yadda albarkatun ƙasa ke da ƙarfi," in ji Peddoc a cikin Labarin Pedro Costa ya jagoranci aikin. An yi fina-finai ta hanyar tsari mai yawa wanda ke buƙatar yanayin zafi har zuwa digiri 3,200 kuma ba zai iya samar da fina-finai na bakin ruwa fiye da fewan microns ba.
Deinar, Costa da abokan aikinsu sun kirkiro da ingantacciyar hanya da ingantacciyar hanya don yin zanen gado na zane-zane kusan 100 nanomecter lokacin farin ciki. Teamungiyar ta yi amfani da wata dabara da ake kira sinadarai mai guba (CVD) don girma nanemy-lokacin farin ciki fina-finai (inda catalyzes na nickel ta fashe da canjin methane a kan zane. "Mun samu ngf a cikin mintuna 5 kawai CVD mataki mataki a kan yawan zafin jiki na 900 digiri Celsius," in ji Deenar.
NGF na iya girma cikin zanen gado har zuwa 55 cm2 a cikin yankin da girma a garesu na tsare. Ana iya cire shi da canjawa wuri zuwa wasu saman ba tare da buƙatar takardar tallafi na polymer, wanda shine buƙatun gama gari lokacin aiki tare da fina-finai mai lamba guda ɗaya ba.
Aiki tare da ƙwararrun ƙwararrun ƙwararren micrescopy na lantarki Alessandro Genverse, ƙungiyar ta sami hotunan watsa shirye-shirye na lantarki (tem) na sassan NGF akan nickel. "Ganin dubawa tsakanin fina-finai tsakanin fina-finai da kuma nickel na nickel wani nasara ne kuma zai samar da ƙarin fahimta cikin wadannan fina-finai," in ji Costa.
Kauri daga NGF ya fadi tsakanin kasuwancin micron-lokacin farin ciki fina-finai da graphene mai yawa-graphene. "NGF Rijojin Graphene da kuma zanen masana'antu, kara zuwa Arsenal finafinan finafinan," in ji Costa. Misali, saboda sassauci, ana iya amfani da NGF don gudanar da zafi a cikin wayoyin hannu masu sauƙin wayar da yanzu suna fara bayyana a kasuwa. "Idan aka kwatanta da fina-finai na Graphene, hadewar NGF za ta kasance mai araha kuma mafi barga," in ji shi.
Koyaya, NGF tana da amfani da yawa fiye da diski mai zafi. Kyakkyawan fasalin da aka nuna a cikin hotunan tac shine cewa wasu sassan NGF kaɗan ne kaɗan na carbon lokacin farin ciki. "A hankali, kasancewar yadudduka masu yawa na yanki na graphene domains na tabbatar da isasshen digiri na bayyanuwa a cikin fim," in ji Dokeoka. Za'a iya amfani da ƙungiyar bincike, za a iya amfani da hanyar da aka yi amfani da ita a matsayin wani ɓangare na sel na hasken rana ko azaman kayan aikin gano gas na dioxide dioxide dioxide. "Muna shirin hada kungiyoyi masu amfani da su don hakan zai iya yin aiki a matsayin kayan aiki mai aiki," in ji Costa.
CIGABA: Gitanjali Deokar et al., Saurin girma fim din da aka tsara akan wafer-sikelin nickel tsare da bincike na tsarinsu, Nanotechnology (2020). Doi: 10.1088 / 1361-6528 / Aba712
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Lokacin Post: Sat-05-2024