Transparent, Conductive Carbon nanotube films Paper Presentation, Transparent Technology pdf, Transparent invisible, Nano Electronics Conductive Carbon nano tubes films Nano technology ppt ( Seminar Paper Presentations Materials Projects )
Abstract:We describe a simple process for the fabrication of ultrathin, transparent, optically homogeneous, electrically conducting films of pure single-walled carbon nano tubes and the transfer of those films to various substrates. For equivalent sheet resistance, the films exhibit optical transmittance comparable to that of commercial indium tin oxide in the visible spectrum, but far superior transmittance in the technologically relevant 2- to 5-micrometer infrared spectral band. These characteristics indicate broad applicability of the films for electrical coupling in photonic devices. In an example application, the films are used to construct an electric field–activated optical modulator, which constitutes an optical analog to the nanotube-based field effect transistor.Evaluating the potential of carbon nanotubes (CNTs) as the basis of future nanoelectronics technology has been the subject of intense research since their discovery. In contrast, their applications in macroelectronics had received limited attention until three to four years ago when fabrication and purification of macroscopic nanotube products became a relatively mature technique. Recently, considerable research on macro-optoelectronics has focused on optimizing the performance of organic light-emitting diodes (OLEDs) by incorporating CNTs into polymer matrixes as a dopant material.It is found that the combination of CNTs with polymers offers an attractive route not only for reinforcing polymer films but also for introducing new electronic properties based on morphological modification or electronic interaction between the two components.
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