%0 Journal Article
%T Large Area C60 Film Obtained by Microwave Oven Irradiation from an Organic Resin
%A J. Mart赤nez-Reyes
%A L. G. D赤az Barriga-Arceo
%A L. Rend車n-Vazquez
%A R. Mart赤nez-Guerrero
%A N. Romero-Parada
%A E. Palacios-Gonz芍lez
%A V. Garibay-Febles
%A J. Ort赤z-L車pez
%J ISRN Nanomaterials
%D 2013
%R 10.1155/2013/524548
%X In the present work the synthesis of fullerene thin film produced in a conventional microwave oven from the decomposition of terpenoid is reported. The polycrystalline structure of the sample was determined by X-ray diffraction (XRD); the sample showed several phases, and the main phase corresponds to fullerene ordered in a face-centered cubic structure (FCC), with a lattice parameter ˋˋ, with two more structures: one is orthorhombic system with lattice parameters ˋˋ, ˋˋ, and ˋˋ, and the other is the monoclinic system with lattice parameters ˋˋ, ˋˋ, ˋˋ, and ∼ coexisting also with graphite 2H phase with lattice parameters ˋˋ, ˋˋ. It was observed in a scanning electron microscopy (SEM) that the sample formed thin films of stacked carbon. The film thickness was measured by a SEM, and it was 140.8 to 523ˋnm and the macroscopic area of 12ˋcm2, whereas a high-resolution transmission electron microscopy (HRTEM) revealed that the main phase of the material is C60 ordered in a face-centered cubic structure (FCC). In the sample surface by atomic force microscopy (AFM), islands deposited crystals were observed having symmetry m crystal habit associated with the tetrahedron. 1. Introduction Carbon thin films are important for the development of applications in semiconductors, nano electronics, and aerospace industry due to the physical properties of their crystal structure. These properties are high electric conductivity or semiconductivity, photo conductivity, and optical nonlinearity [1]. Several methods are currently used for the preparation of carbon films [2每5]. In these methods the films are obtained in temperature conditions at ranges of 950每1250∼C [6] with different energies from 100 to 1000ˋeV [7] at pressure from 1 to Torr [8每10] using inert atmospheres or carbon gases as control atmospheres with flowing in a continuous way to obtain small area films with thicknesses from 500ˋnm to 10ˋ000ˋnm with a crystalline or amorphous structure [11], making this synthesis expensive. Comparing the carbon film precursors at present, the use of organic resins such as terpenoids has proven to be efficient in obtaining carbon films by using techniques such as CVD [12每17]. Comparing the chemical precursors used in the synthesis of carbon films, it was observed that organic resins present more advantages than the inorganic precursors because some of these resins are environment friendly [18]. It is important to mention that camphor resin has been successfully used in carbon nanomaterials synthesis and also in carbon films, graphene, carbon nanotubes, and other carbon
%U http://www.hindawi.com/journals/isrn.nanomaterials/2013/524548/