Hole transport material-free carbon electrode-based perovskite solar cells (C-PSCs) are one of the hopeful solutions for the availability of PSCs in the market. However, there is still some potential to increase the carrier collection in this cutting-edge system. In that respect, Strontium (Sr2+), an effective alkaline earth metal ion has been doped into rutile TiO2 nanorods (NRs). The Sr2+-Rutile TiO2 NRs were synthesized through a solvothermal route. The phase and morphological confirmations of the NRs were done by PXRD and FE-SEM analysis, respectively. Optical studies such as UV-Vis-NIR absorbance and diffused reflectance of powder and transmittance of the films elucidate that Sr dopant has increased the respective property of materials compared to the undoped sample. The formation of perovskite layer over the developed ETLs is analysed with the FE-SEM. The recombination mechanism at the interface of different ETL/perovskite layer was studied and correlated with PL emission and EIS measurements, respectively. The performance of the fabricated devices was studied in-depth through J-V and IPCE measurements. It was found that the device with optimized wt% of Sr dopant attains PCE of 11.05% with Jsc of 21.03 mA/cm2. Moreover, the champion device shows better ambient stability of ∼81% for 38 days (at room temperature and relative humidity of 60-65%) without any encapsulation, when compared to the undoped one.