Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 15, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201602807
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Funding
- Solliance, a partnership of R&D organizations from The Netherlands, Belgium, and Germany
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Multijunction solar cells employing perovskite and crystalline-silicon (c-Si) light absorbers bear the exciting potential to surpass the efficiency limit of market-leading single-junction c-Si solar cells. However, scaling up this technology and maintaining high efficiency over large areas are challenging as evidenced by the small-area perovskite/c-Si multijunction solar cells reported so far. In this work, a scalable four-terminal multijunction solar module design employing a 4 cm(2) semitransparent methylammonium lead triiodide perovskite solar module stacked on top of an interdigitated back contact c-Si solar cell of identical area is demonstrated. With a combination of optimized transparent electrodes and efficient module design, the perovskite/c-Si multijunction solar modules exhibit power conversion efficiencies of 22.6% on 0.13 cm(2) and 20.2% on 4 cm(2) aperture area. Furthermore, a detailed optoelectronic loss analysis along with strategies to enhance the performance is discussed.
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