Chloroindium phthalocyanine (InClPc) nanoparticles embedded in poly(N-vinylcarbazole) (PVK) are obtained by the method of complexation-mediated solubilization, where InClPc is dissolved in high concentration in the aprotic organic solvent containing Lewis acid for the formation of electron donor-acceptor complexes. The fabricated InClPc nanoparticles are characterized by means of UV/VIS absorption, X-ray diffraction pattern, and TEM. The results show that the InClPc nanoparticles are spherical with a size of 25 - 50 nm. The broader diffraction peaks and the blue-shifted absorption for InClPc nanoparticles are observed. The photoconductivity of the InClPc nanoparticles in a single layered photoreceptor is investigated as well. (C) 2003 Kluwer Academic Publishers.