Electrical conductivity and optical absorption of nickel phthalocyanine (NiPc)-substituted borate glass is reported here for the first time. We have successfully prepared NiPc-substituted lithium borate glass at 850 degreesC and some preliminary studies on this glass are reported. Activation energy and optical band gap were determined for the glass from the Arrhenius plot of conductivity and optical absorption spectra, respectively. (C) 2002 Published by Elsevier Science B.V.