This work is devoted to a technique of ultraviolet pulse laser synthesis of thin films at room temperature. The results of thin film synthesis by the photo-dissociation of carbon and metal-bearing compounds are demonstrated. The iron thin film covered by carbon was produced by photolysis of the mixture of CCl4 and Fe(CO)5 with argon on silicon monocrystalline substrates. Photo-dissociation of this mixture leads to the appearance of iron atoms forming the initial iron coating on the substrate and formation of CCl3 radicals. Presumably a carbon thin film grows by the interaction of CO and CCl3 radicals with the iron catalytic surface forming a net structure of flat carbon nanorings with 20-40 nm in size.
thin films, composite materials, chemical vapor deposition (CVD), coatings, atomic force microscopy (AFM).
Работа посвящена развитию способа ультрафиолетового лазерного фотосинтеза для производства тонких пленок при комнатных температурах. Продемонстрированы результаты синтеза тонких пленок при помощи фото-диссоциации углеродо- и металло-содержащих соединений. Тонкие пленки железа, покрытые углеродом на подложках из монокристаллического кремния, синтезированы при фотолизе смеси CCl4 и Fe(CO)5 с аргоном. Фото-диссоциация этой смеси приводит к появлению атомов железа, образующих железное нанопокрытие на подложке и генерации радикалов CCl3. Предположительно углеродное покрытие растет на железной пленке при взаимодействии молекул СО и радикалов CCl3 с каталитической поверхностью и образует сетчатую структуру плоских углеродных округлых наноструктур 20-40 нм в диаметре.
тонкие пленки, композитные материалы, осаждение химических паров, покрытия, атомно-силовой микроскоп.
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