Iron and Copper Doped Zinc Oxide Nanopowders as a Sensitizer of Industrial Energetic Materials to Visible Laser Radiation

Iron and Copper Doped Zinc Oxide Nanopowders as a Sensitizer of Industrial Energetic Materials to Visible Laser Radiation

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The development of methods ensuring reliable control over explosive chemical reactions is a critical task for the safe and efficient application of energetic materials.Triggering the explosion by laser radiation is one of the promising methods.In this work, we demonstrate a technique of applying the common industrial high explosive pentaerythritol tetranitrate (PETN) as a photosensitive energetic material by adding zinc oxide nanopowders doped with copper and iron.Nanopowders of ZnO:Fe and ZnO:Cu able to absorb visible light were synthesized.

The addition of one mass percent nanopowders in bostik universal primer pro PETN decreased the threshold energy density of its initiation through Nd:YAG laser second harmonic (2.33 eV) by more than five times.The obtained energetic composites can be reliably initiated by a CW blue laser diode with a wavelength of 450 nm and power of 21 W.The low threshold initiation energy and short irradiation exposure of Neuw Rebel Skinny Eternal Black Jeans the PETN-ZnO:Cu composite makes it applicable in laser initiation devices.

PETN-ZnO:Cu also can be initiated by an infrared laser diode with a wavelength of 808 nm.The proposed photochemical mechanism of the laser-induced triggering of the explosion reaction in the studied energetic composites was formulated.The results demonstrate the high promise of using nanomaterials based on zinc oxide as a sensitizer of industrial energetic materials to visible laser radiation.