The photovoltaic solar array is the main source of power in satellites because of its high reliability, robustness, cost effectiveness and environment friendliness. In the satellite solar array, Watts/m² is a very important parameter because any reduction in the area of the solar array leads to reduced weight and increased mission life. Similarly, lower $/Watt reduces the cost of satellites. In order to achieve this goal, there should not be any compromise on the performance of the solar cells. CESI Italy has developed a new version of multijunction solar cells with lower cost (CTJ-LC) without compromising on the performance. In space, particulate radiation is one of the major threats on the performance of solar cells. The radiation induces the defects in the solar cells and reduces the performance. In this paper, performance study after radiation exposure is made on these low-cost solar cells by using different characterization techniques and compared with the performance of the standard multijunction solar cells. The details of characterization and test results are presented in this paper.

光伏太阳能电池阵列因其高可靠性、稳健性、成本效益和环境友好性而成为卫星中的主要电源。在卫星太阳能电池阵列中，Watts/m ²是一个非常重要的参数，因为太阳能电池阵列面积的任何减少都会导致重量减轻和任务寿命增加。同样，较低的 $/Watt 会降低卫星的成本。为了实现这一目标，太阳能电池的性能不应有任何妥协。CESI意大利开发了一种新版本的低成本多结太阳能电池（CTJ-LC），而不会影响性能。在太空中，微粒辐射是对太阳能电池性能的主要威胁之一。辐射会导致太阳能电池中的缺陷并降低性能。在本文中，通过使用不同的表征技术对这些低成本太阳能电池进行了辐射暴露后的性能研究，并与标准多结太阳能电池的性能进行了比较。