This article reports the photoconductive spectra of poly-N-vinylcarbazole: 2

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7-trinitro-9-fluorenone (1:0.5 molar ratio) charge transfer complex (CTC) obtained with sandwich and surface cells.The effects of wavelength

field strength and polarity of the illuminated electrode on Lux-Ampere index y are discussed. Two kinds of photocarrier generation are suggested. When λ>500nm

the photocarriers were generated by light absorption of the charge transfer complex; when λ<500nm

the phptoearriers were produced by poly-N-vinylcarbazole and 2

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7-trinitro-9-fluorenone free molecules present in the film.