Experiment-based projected high efficiency thermally diffused p/sup +/n (Cd,S) InP solar cells for space applications

Abstract

By drastically reducing the defect densities of p/sup +/n (Cd,S) InP diffused structures the authors have succeeded in fabricating p/sup +/n InP solar cells with measured AM0, 25/spl deg/C V/sub /spl prop// values exceeding 880 mV, without anti-reflection (AR) coating. Experiment-based projected maximum achievable AM0, 25/spl deg/C efficiency of these cells is 21.3%. Preliminary investigation of the performance parameters of p/sup +/n (Cd,S) InP structures and solar cells after irradiation with 10/sup 13/ cm/sup -2/ 3MeV protons indicate higher radiation tolerance of this configuration as compared to n/sup +/p InP configuration due to its better annealing properties.<>