Laser Patterning of Carbon-Nanotubes Thin Films and Their Applications

In 1960 T.H. Maiman successful fabricated the first laser and projected the first laser light. Fifty years later, lasers have found extensive applications in fields including energy, materials, communications, biotechnology and mechanical engineering. In the past several decades, continuous developments have improved the performance of lasers. From an initial wavelength of 694.3 nm, new lasers have been developed achieving wavelengths in the infrared (10.6 m) and ultraviolet (157 nm) spectra. Laser light has the several features which distinguish it from traditional light sources: directionality, brightness, monochromatity and coherence. These four characteristics have resulted in lasers having a profound influence on industrial development. In the following, the use of laser for material transfer will be briefly introduced.