Abstract. Zinc oxide (ZnO) powder was firstly prepared by hydrothermal synthesis at low temperature (120 ºC). UV-vis spectroscopic study was used to indicate different peaks for mixed colourants available in their extract in both UV and visible region. X-ray diffraction (XRD) investigation was carried out to examine the structural properties of ZnO powder. ZnO colloidal solution was deposited onto ITO/glass by rolling. After air dry, annealing in O2, atmospheric ambient was performed at 300 ºC and 400 ºC for 1 h. As the surface treatment, sintered ZnO film was immersed in 0.1 M HCl, washed with DIW and dried at room temperature. The curcumin, yellow-orange dye, found in turmeric root and ginger (Zingiber Officinale Roscoe), brown, were used as the photosensitizer and they were carefully prepared to avoid colour fading. After that, the ZnO films were immersed in dye solutions for 24 h. High performance carbon counter electrode was prepared and used as a counter electrode. Two glass slides were offset and two binder clips were used to hold the electrodes together. Photovoltaic responses of ZnO cells were measured and they were expected to utilize the DSSC application. The conversion efficiency of DSSC with curcumin dye gave 0.13% at 400 oC and at 0.12% at 300 oC whereas the conversion efficiency of DSSC with ginger dye resulted 2.02% at 400 oC and 2.88% at 300 oC.