Radiation response mechanisms in multijunction III-V space solar cells

The radiation response mechanisms operative in multijunction (MJ) III-V space solar cells are described. The effects of electron and proton radiation-induced defects on the cell performance are identified, and a detailed description of the MJ solar cell radiation response is presented for several different stoichiometries. Special attention is paid to the case of low energy proton irradiation for both unidirectional, monoenergetic laboratory experiments and omni-directional, spectrum irradiation experienced in a space environment.