The effect of temperature changes on electrical performance of the betavoltaic cell

There is a significant relationship between temperature and electrical performance of a betavoltaic cell. Two silicon diodes used as energy conversion devices of betavoltaic cells were irradiated by Ni-63, and the relationships between the temperature and the electrical performance such as Voc, Isc, and Pmax were examined. Isc increased very little as temperature increased but Voc decreased considerably. The changing values of Voc were −3.1 and −3.0 mV/K, respectively, in the temperature range 233.15–333.15 K. As a result of this, Pmax and η also decreased markedly.