developed a new fabrication technique<\/a> that increases the efficiency of FPSCs, paving the way for its use on a much larger scale.<\/p>\nHow did the team increase the power efficiency of flexible solar cells?<\/h3>\n Chenyi Yi, associate professor in the State Key Laboratory of Power System Operation and Control at Tsinghua University and senior author of the paper, explained: \u201cIncreasing the power conversion efficiency of FPSCs is crucial for several reasons.<\/p>\n
\u201cHigher efficiency makes FPSCs more competitive with other solar cell technologies, decreases the cost per watt of generated electricity and resources needed to produce the same amount of electrical power and increases the range of applications where FPSCs can be practically used.\u201d<\/p>\n
Specifically, the team developed a new chemical bath deposition (CBD) method of depositing tin oxide (SnO2) on a flexible substrate without requiring a strong acid, which many flexible substrates are sensitive to.<\/p>\n
The new technique allowed the researchers more control over tin oxide growth on the flexible substrate. Tin oxide serves as an electron transport layer in flexible solar cells, which is critical for power conversion efficiency.<\/p>\n
\u201cThis CBD method differs from previous research by using SnSO4 tin sulphate rather than SnCl2 tin chloride as a tin precursor for depositing SnO2, making the new method compatible with acid-sensitive flexible substrates,\u201d said Yi.<\/p>\n
Addressing durability concerns<\/h3>\n Importantly, the new fabrication method also addresses some of the durability concerns over FPSCs.<\/p>\n
Yi said: \u201cThe residual SO42-sulphate left over after the SnSO4-based CBD additionally benefits the stability of the PSCs because of the strong coordination between Pb2+ lead from perovskite and SO42- from SnO2.<\/p>\n
\u201cAs a result, we can fabricate higher quality SnO2 to achieve more efficient and stable flexible solar cells.\u201d<\/p>\n
The team achieved a new benchmark for highest power conversion efficiency for FPSCs at 25.09% and was certified at 24.90%.<\/p>\n
The durability of the SnSO4-based flexible solar cells was also demonstrated by cells maintaining 90% of their power conversion efficiency after the cells were bent 10,000 times. SnSO4-based flexible solar cells also showed improved high-temperature stability compared to SnCl2-based solar cells.<\/p>\n
\u201cThe ultimate goal is to transition these high-efficiency FPSCs from laboratory scale to industrial production, enabling widespread commercial application of this technology in various fields, from wearable technology, portable electronics and aerospace power sources to large-scale renewable energy solutions,\u201d Yi concluded.<\/p>\n","protected":false},"excerpt":{"rendered":"
A new manufacturing method has increased the power efficiency of flexible solar cells made from perovskite. Read more here.<\/p>\n","protected":false},"author":22,"featured_media":45843,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24204],"tags":[730],"acf":[],"yoast_head":"\n
Highest power efficiency achieved in flexible solar cells using new fabrication technique<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n \n \n \n \n \n\t \n\t \n\t \n