Studies of temperature effects in back surface field solar cells with and without an optical reflector

Abstract

It is well known that the open-circuit voltage of a solar cell decreases and the short-circuit current increases with increasing temperature. The present experimental results agree with the theoretical predictions for conventional and back surface field (BSF) solar cells, and also show that voltage degradation is less for BSF cells with an optical reflector at the back (BSFR solar cells). The voltage coefficient varies from −2.07 mV K −1 for conventional solar cells to −1.68 mV K −1 for BSFR solar cells. The short-circuit current also begins to decrease above 400 K.