Dye-sensitized solar cells have shown great potential in low and self-powered nano/micro-scale applications, due to their low fabrication costs, semi-transparency in the visible spectrum, diffused light harvesting capabilities, and their lead-free structure. However, DSSC efficiencies are still relatively low due to their limited absorption capabilities in the active mesoporous layer. The current study demonstrates an attempt to boost the overall conversion efficiency of DSSC by narrowing the energy band gap of the mesoporous TiO₂ active layer. AgVO₃ is utilized in doping the mesoporous layer, seeking for a visible absorption shift from 3.2 eV to 2.6 eV. In addition, natural organic beetroot dye is used while keeping DSSC with N719 dye as a bare cell. Morphological, optical, as well as electrical characterization results were obtained for both thin-film and complete solar cells. The fabricated cell showed an overall harvested power density of 8.6 mW/cm², capable of operating various low-power sensing applications.

染料敏化太阳能电池由于其制造成本低、可见光谱半透明、漫射光收集能力和无铅结构，在低功率和自供电纳米/微米级应用中显示出巨大的潜力。然而，由于其在活性介孔层中的吸收能力有限，DSSC 的效率仍然相对较低。目前的研究表明，试图通过缩小介孔 TiO ₂活性层的能带隙来提高 DSSC 的整体转换效率。AgVO ₃用于掺杂介孔层，寻求从 3.2 eV 到 2.6 eV 的可见吸收位移。此外，使用天然有机甜菜根染料，同时保持 DSSC 与 N719 染料作为裸细胞。获得了薄膜和完整太阳能电池的形态、光学和电学表征结果。制造的电池显示出 8.6 mW/cm ²的总功率密度，能够运行各种低功率传感应用。