期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 9, 期 2, 页码 446-458出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.7b02277
关键词
-
类别
资金
- Nano-Tera.ch Synergy project
- Swiss Federal Office of Energy [SI/501072-01]
- Swiss National Science Foundation via the NRP70 Energy Turnaround project [PV2050]
Multijunction cells may offer a cost-effective route to boost the efficiency of industrial photovoltaics. For any technology to be deployed in the field, its performance under actual operating conditions is extremely important. In this perspective, we evaluate the impact of spectrum, light intensity, and module temperature variations on the efficiency of tandem devices with crystalline silicon bottom cells with a particular focus on perovskite top cells. We consider devices with different efficiencies and calculate their energy yields using field data from Denver. We find that annual losses due to differences between operating conditions and standard test conditions are similar for single-junction and four-terminal tandem devices. The additional loss for the two-terminal tandem configuration caused by current mismatch reduces its performance ratio by only 1.7% when an optimal top cell bandgap is used. Additionally, the unusual bandgap temperature dependence of perovskites is shown to have a positive, compensating effect on current mismatch.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据