Synthesis of colloidal CuInSe2 nanoparticles by electrical spark discharge in liquid Mehdi Mardanian, Alena A. Nevar, Michael Nedel’ ko and Nikolai V. Tarasenko Eur. Phys. J. D, 67 10 (2013) 208 Published online: 18 October 2013 DOI: 10.1140/epjd/e2013-40278-y