期刊
PROGRESS IN PHOTOVOLTAICS
卷 28, 期 9, 页码 946-955出版社
WILEY
DOI: 10.1002/pip.3301
关键词
artificial light harvesting; finite-difference time domain; indoor photovoltaic; tandem
资金
- Basic Science Research Program through the NRF - Ministry of Education [NRF-2018R1D1A1B07043759/NRF-2018 R1D1A3B07049992]
- Technology Development Program to Solve Climate Changes of the NRF - Ministry of Science, ICT & Future Planning [NRF-2016M1A2A2940912]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2018R1A2B6008815]
The lifetime of a device depends highly on that of its battery. In order to enhance the longevity of microsystems or sensor networks, it is necessary for these devices to be self-powered. Indoor photovoltaics allow the possibility of harvesting artificial light sources for powering microsystems. Whereas indoor photovoltaics based on single active layers have showed high efficiencies under LED lighting, tandem structures have yet to be tested extensively. In our study, we use finite-difference time-domain simulations to study the highest possible short-circuit current density that can be extracted from tandem organic devices. We compare the simulation results to the results for photovoltaic devices based on single bulk active layer heterojunctions. Our simulations found that although detailed balanced band gap calculations show tandem photovoltaics to be viable, the low-intensity emission spectra of white LED light sources can be better harvested by single active layer-based photovoltaics. The current-matching limitation of a tandem photovoltaic structure connected in series limits the highest output current and open-circuit voltage of the device and, thus, its performance for the illumination of lower intensity light.
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