Increasing atmospheric pollution to meet the increasing energy need in our world seriously threatens both nature and human health. While there is more than one way to address this problem, one particular way is to develop and use fuel cell-powered machines. Fuel cells use hydrogen as fuel. Another important feature of fuel cells is that water comes out as waste after use. In this study it is aimed to increase the electrical conductivity of the fuel cell by applying carbon quantum dot solution directly to the nafion membrane, which is one of the components. To verify this situation, voltage-current density data was taken with the arduino system created using 1k and 10k resistors. Using this data, the fuel cell polarization curve graph was created.