Dept. of Physics, Faculty of Science, Arak University, Arak-38156-8-8349, Iran
In recent years the single wall carbon nanotubes (SWNT) have been widely studied. Study of SWNTs dense or SWNTs composite as a black body, is the one of these studies. The aim of this paper is to characterize of armchair SWNT or armchair SWNT dense as the best SWNT kinds for heat transfer via radiation. In this study, The SWNT's armchair, zigzag and chiral were made with equal lengths and similar structures. Absorption coefficient of SWNT dense or SWNT composite at the ranges of the (UV) to (IR) radial wavelengths are 98 to 99 percent approximately. Our studies on SWNT kinds show that the numerical value of heat transfer via radiation at the armchair SWNT or armchair SWNT dense is bigger than the similar zigzag and chiral SWNTs. Thus, armchair SWNT or armchair SWNT dense is the best black body at the ranges of the (UV) to (IR) radial wavelengths in the SWNT kinds.
