The charge transfer complexes of HEK-TCNQ and HEK-DDQ (HEK=9-hydroxyethylcarbazole) have been synthesized. The Raman and UV spectra have shown that under the irradiation at 514.5nm of Ar^+ laser, an electron can be transfered from HEK to TCNQ to form HEK^+TCNQ^-. As a result, the photoconductivity of HEK^+TCNQ^- was measured to be at least one order of magnitude larger than 10^-^1^1s.cm^-^1 of HEK-TCNQ. Based on structural and IR spectra data, the charge transfered from HEK to DDQ in HEK-DDQ was estimated to be 0.1~0.2.

Key words: CARBAZOLE P, X-RAY DIFFRACTION ANALYSIS, CHARGE TRANSFER, RAMAN SPECTROMETRY