Cu(In,Ga)Se2 solar cells and mini-modules fabricated on thin soda-lime glass substrates
| Autor: | Hajime Shibata, S. Furue, Masayuki Iioka, Hirofumi Higuchi, Shogo Ishizuka, Shigeru Niki, Akimasa Yamada |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Soda-lime glass
Materials science Renewable Energy Sustainability and the Environment Open-circuit voltage Chalcopyrite business.industry Mineralogy Substrate (electronics) Copper indium gallium selenide solar cells Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention law Photovoltaics visual_art Solar cell visual_art.visual_art_medium Optoelectronics Thin film business |
| Zdroj: | Solar Energy Materials and Solar Cells. 119:163-168 |
| ISSN: | 0927-0248 |
| Popis: | In this paper, we report a recent progress in Cu(In,Ga)Se2 (CIGS) solar cells and mini-modules demonstrated on soda-lime glass (SLG) substrates, which are one of the most common and cost effective substrate materials for chalcopyrite photovoltaics. CIGS absorber layers grown by the three-stage co-evaporation process was used with an optimized [Se]/[metal] flux ratio and preferable substrate temperatures for SLG substrate thicknesses. SLG substrates of 0.28–1.1 mm in thickness, which are thinner than that generally used in laboratories and industries (∼2–3 mm), were employed to develop techniques for further reductions of material cost and module weight. Solar cell and mini-module efficiencies of >19% and >17%, respectively, with relatively high open circuit voltages (Voc) and fill factors (FF) (Voc 0.77 V and FF 0.79 for cells, and Voc 0.77 V and FF 0.74 for mini-modules) were demonstrated using a composition ratio [Ga]/([In]+[Ga]) of 0.45 for the CIGS absorber layers. Key techniques and future directions toward highly efficient CIGS solar cells and modules with high values of Voc and FF are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect