Photorefractive (PR) and photoconductive properties of methyl-substituted poly(triarylamine) (PTAA) based PR composite is presented. PR composite consisted of PTAA, piperidinodicyanostyrene, (2,4,6-trimethylphenyl) diphenylamine, and [6,6]-phenyl-C61-butyric acid methyl ester. Photocurrent is simultaneously measured when a transient degenerate four wave mixing is recorded. Diffraction efficiency of 16.6%, response time of 5 ms, and sensitivity of 43 cm(-2) J(-1) are measured under an applied field of 45 V mu m(-1) and 632.8 nm illumination with the intensity of 1.5 W cm 22. Response time of 10.2 ms with diffraction efficiency of 47.0% is obtained under a same field and 532 nm illumination with the intensity of 0.427 W cm(-2). Higher diffraction and faster response is due to the large photocurrent in the order of hundreds mu A measured. The resultant trap density is in the order of 10(14) cm(-3). Thus, space-charge field less than 1 V mu m(-1) is evaluated, which limits the PR response. (C) 2015 Wiley Periodicals, Inc.