Journal
SOLAR RRL
Volume 5, Issue 12, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202100655
Keywords
contactless methods; luminescence imaging; perovskite solar cells; series resistance; upscaling
Funding
- Australian Government through the Australian Renewable Energy Agency (ARENA) [2017/RND001]
- Australian Centre of Advanced Photovoltaics (ACAP)
- ACAP [RG193402-I, RG200768-G]
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The contactless effective series resistance imaging method for large-area perovskite solar cells, based on photoluminescence imaging with nonuniform illumination, is capable of detecting features with high effective series resistance. The method reliably provides information about the severity of the detected series resistance through photoexcitation pattern manipulation.
A contactless effective series resistance imaging method for large-area perovskite solar cells that is based on photoluminescence imaging with nonuniform illumination is introduced and demonstrated experimentally. The proposed technique is applicable to partially and fully processed perovskite solar cells if laterally conductive layers are present. The capability of the proposed contactless method to detect features with high effective series resistance is validated by comparison with various contacted mode luminescence imaging techniques. The method can reliably provide information regarding the severeness of the detected series resistance through photoexcitation pattern manipulation. Application of the method to subcells in monolithic tandem devices, without the need for electrical contacting the terminals, appears feasible.
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