Impact of loading topology and current mismatch on current–voltage curves of three-terminal tandem solar cells with interdigitated back contacts
| Autor: | Takeshi Tayagaki, Ryuji Oshima, Tomihisa Tachibana, Hidenori Mizuno, Kikuo Makita, Takeyoshi Sugaya, Hidetaka Takato |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Tandem Renewable Energy Sustainability and the Environment Biasing Topology (electrical circuits) 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Network topology Topology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Power (physics) Terminal (electronics) Equivalent circuit Current (fluid) 0210 nano-technology |
| Zdroj: | Solar Energy Materials and Solar Cells. 221:110901 |
| ISSN: | 0927-0248 |
| Popis: | The electrical output characteristics of a three-terminal tandem solar cell with top and interdigitated back contacts were experimentally investigated under different external loading and current mismatch conditions. Regardless of the chosen loading topology (i.e., which terminal is common), the output power for the two sub-circuits of the three-terminal tandem added up to the same value. However, the current–voltage curve of one sub-circuit depended on the loading topology and biasing condition of the other sub-circuit, which can be explained by a simple equivalent circuit model. A negative current was observed for two topologies depending on the current mismatch between the top and bottom cells, which suggests power injection into one of the sub-circuits. This negative current did not appear for a third topology. These results indicate that the third topology is a useful way to maximise the power, especially under spectrum-varying conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect