Current density and cell temperature under short-circuit conditions in different coupling scenarios. In the first scenario (“w/o coupling"), the solar cell is operating under STC (its temperature is set to 25 ∘C). In the second scenario (“w/ET coupling only"), the thermal module is coupled to the electrical module, but the optical response is calculated assuming a complex refractive index equal to 25 ∘C. In the third scenario (“w/ full OET coupling"), all the three physical modules are coupled together.