Three metal-free organic dyes JY60-62 based on triphenylethylene (TPE)-decorated carbazole have been synthesized and applied as photosensitizers in dye-sensitized solar cells. In comparison to TPE-free dye CVHTC, the anti at-at stacking characteristic stemming from the introduced TPE units helps JY60-62 to decrease the excited-state self-quenching in aggregation state and thus get better photovoltaic performance. Efforts on suppressing the unfavorable charge recombination by embellishing TPE with long hexyloxy chains (JY61), and facilitating the intramolecular charge transfer effect by improving the molecular planarity via the replacement of TPE's near-carbazole phenyl group with thiophene (JY62) seem not effective as expected, although slightly enhanced opencircuit voltage of JY61-based devices and short-circuit current density of JY62-based devices have been observed. Finally, the non-modified TPE-involved dye JY60 achieved the highest power conversion efficiency of 6.40%, exceeding approximate 30% of TPE-free dye CVHTC. These results reveal that original TPE unit without further redundant modification could work as an ideal building block for improving the photovoltaic properties of conventional easy-stacking dyes.