The 2,9,16-trilauryloxy-23-hexyloxy substituted copper phthalocyanines multiwall carbon nanotubes (CuPc(OC12H25)3(OC6H13)-MWCNT) hybrid materials were facilely prepared by a chemical functionalization method. The aggregation structures of resulting hybrid materials have been characterized by TEM, SEM, FTIR, XRD and UV-vis measurements. The CuPc(OC12H25)(3)(OC6H13)-MWCNT hybrid materials exhibit good solution storage stability and a low aggregation tendency due to the chemical bonding between MWCNT and asymmetrically substituted phthalocyanines. The enhancement of the photoconductivity of phthalocyanines-MWCNT hybrid materials has been investigated in terms of interaction effects of phthalocyanines and MWCNT. It could supply a new way to fabricate a light energy conversion materials. (c) 2008 Elsevier B.V. All rights reserved.