Effect of Temperature on the Ni-63 Betavoltaic Cell

There are significant relations between temperature and the electrical performances of betavoltaic cell. Two silicon diodes as the energy conversion device of betavoltaic cell were irradiated by Ni-63, checked the relations between temperature and the electrical performances such as V_oc, I_sc, P_max etc. I_sc increased very little as the temperature increasing but V_oc decreased significantly. The changing values of V_oc were −3.1 mV/k and −3.0 mV/k respectively within the temperature range of 233.15 K∼333.15 K. As a result of this, the P_max, η etc. decreased markedly too.