<p>The efficient heat transfer mechanism is crucial for the operation of power generation, refrigeration, and advanced electronic systems to achieve high power density and optimal efficiency. Several investigations have been carried out on enhancing critical heat flux (CHF) and heat transfer coefficient (HTC) through surface modifications on heat transfer of pool boiling. This study focused on examining the pool boiling behavior of a graphene oxide (GO)-coated copper surface utilizing the spin coating deposition method under atmospheric pressure. Three different GO solution concentrations (4, 6, and 8 mg mL⁻¹) were utilized. The thin films’ morphology, wettability, and thickness were analyzed using contact angle measurements, an energy-dispersive X-ray spectrometer, and a scanning electron microscope. The study revealed that the coated surfaces exhibited enhanced wettability, nucleation sites, and porosity characteristics, leading to swift rewetting and cooling of the surface’s hot and dry spots. For HTC and CHF optimization, various concentrations were experimented. In the sample with a 4 mg mL⁻¹ concentration of GO, both CHF and HTC showed remarkable improvements of 59% and 84.7%, respectively, in comparison with the bare copper surface.</p>