en Research Paper Research Paper <span style="font-size:11pt"><span style="line-height:200%"><span style="font-family:Calibri,sans-serif"><span style="font-size:12.0pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times="">With increasing energy demand and depletion of fossil fuel resources, it is pertinent to explore the renewable and eco-friendly energy resource to meet global energy demand. Recently, perovskite solar cells (PSCs) have emerged as plausible candidates in the field of photovoltaics and considered as potential contender of silicon solar cells in the photovoltaic market owing to their superior optoelectronic properties, low-cost and high absorption coefficients. Despite intensive research, PSCs still suffer from efficiency, stability, and reproducibility issues. To address the concern, the charge transport material (CTM) particularly the electron transport materials (ETM) can play significant role in the development of efficient and stable perovskite devices. In the proposed research, we synthesized GO-Ag-TiO₂ternary nanocomposite by facile hydrothermal approach as a potential electron transport layer (ETL) in a regular planar configuration-based PSC. The as synthesized sample was examined for morphological, structural, and optical properties using XRD, and UV-Vis spectroscopic techniques. XRD analysis confirmed the high crystallinity of prepared sample with no peak of impurity. The optimized GO-Ag-TiO₂ETL exhibited superior PCE of 8.72% with J_sc of 14.98 mA.cm^-2 ,V_oc of 0.99 V, and a fill factor of 58.83%. Furthermore, the efficiency enhancement in comparison with reference device is observed which confirms the potential role of doped materials in enhancing photovoltaic performance by facilitating efficient charge transport and reduced recombination. Our research suggests a facile route to synthesize a low-cost ETM beneficial for the commercialization of future perovskite devices.</span></span></span></span></span></span><br> &nbsp; Nanocomposites,Solar Cells,Perovskite solar cells,solar cell energy optimization. 99 107 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-1720-4&slc_lang=en&sid=1 Muhammad Shahzad Sadiq engrshzd@gmail.com 1800319475328460019184 1800319475328460019184 Yes Department Of Mechanical Engineering, International Islamic University, Islamabad, Pakistan Muhammad Imran muhammad.imran@iiu.edu.pk 1800319475328460019185 1800319475328460019185 No Department of Mechanical Engineering, International Islamic University, Islamabad Abdur Rafai Abdur.rafai@iiu.edu.pk 1800319475328460019186 1800319475328460019186 No Department Of Mechanical Engineering, International Islamic University, Islamabad, Pakistan Muhammad Rizwan m.rizwan@iiu.edu.pk 1800319475328460019187 1800319475328460019187 No Department of Mechanical Engineering, International Islamic University