Abstract
Abstract
Series resistance (Rs
) is an essential factor that affects the performance of betavoltaic batteries. However, the Rs
value of betavoltaic batteries tends to be anomaly high when it is extracted from the IV characteristic curve. To explore the reasons for this phenomenon, different injection conditions and their impacts on Rs
of betavoltaic and photovoltaic cells were compared and analyzed, since photovoltaic cells have been studied in-depth in respect of Rs
and have similar principles to betavoltaic batteries. The results show that Rs
will be significantly affected by the injection conditions, and the high resistance of the depletion region under low-level radiation injection of betavoltaic batteries is the main reason for their high Rs
. The effect of high Rs
on betavoltaic battery performance was further explored, and the results show that the IV characteristic curve will be distorted obviously when Rs
is close to or higher than the shunt resistance. This thus leads to a significant decrease in the battery’s fill factor and energy conversion efficiency. The effect of the input power on Rs
should be considered in the future analysis of betavoltaic batteries. This work provides theoretical support for the parameter analysis of betavoltaic batteries.
Subject
Materials Chemistry,Electrical and Electronic Engineering,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献