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dc.contributor.authorHou, Jin
dc.contributor.authorHong, Wei
dc.contributor.authorLi, Xiaohang
dc.contributor.authorYang, Chunyong
dc.contributor.authorChen, Shaoping
dc.date.accessioned2017-10-03T12:49:38Z
dc.date.available2017-10-03T12:49:38Z
dc.date.issued2017-09-12
dc.identifier.citationHou J, Hong W, Li X, Yang C, Chen S (2017) Biomimetic spiral grating for stable and highly efficient absorption in crystalline silicon thin-film solar cells. Optics Express 25: A922. Available: http://dx.doi.org/10.1364/oe.25.00a922.
dc.identifier.issn1094-4087
dc.identifier.doi10.1364/oe.25.00a922
dc.identifier.urihttp://hdl.handle.net/10754/625767
dc.description.abstractBy emulating the phyllotaxis structure of natural plants, which has an efficient and stable light capture capability, a two-dimensional spiral grating is introduced on the surface of crystalline silicon solar cells to obtain both efficient and stable light absorption. Using the rigorous coupled wave analysis method, the absorption performance on structural parameter variations of spiral gratings is investigated firstly. Owing to diffraction resonance and excellent superficies antireflection, the integrated absorption of the optimal spiral grating cell is raised by about 77 percent compared with the conventional slab cell. Moreover, though a 15 percent deviation of structural parameters from the optimal spiral grating is applied, only a 5 percent decrease of the absorption is observed. This reveals that the performance of the proposed grating would tolerate large structural variations. Furthermore, the angular and polarization dependence on the absorption of the optimized cell is studied. For average polarizations, a small decrease of only 11 percent from the maximum absorption is observed within an incident angle ranging from −70 to 70 degrees. The results show promising application potentials of the biomimetic spiral grating in the solar cell.
dc.description.sponsorshipNational Natural Science Foundation of China (NSFC) (11504435, 11147014); Natural Science Foundation of Hubei Province (2013CFA052); Baseline BAS/1/1664-01-01 from KAUST.
dc.publisherThe Optical Society
dc.relation.urlhttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-25-20-A922
dc.titleBiomimetic spiral grating for stable and highly efficient absorption in crystalline silicon thin-film solar cells
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalOptics Express
dc.contributor.institutionHubei Key Laboratory of Intelligent Wireless Communications, College of Electronic and Information Engineering, South-Central University for Nationalities, Wuhan, Hubei, 430074, China
kaust.personLi, Xiaohang
dc.date.published-online2017-09-12
dc.date.published-print2017-10-02


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