期刊
OPTICS EXPRESS
卷 30, 期 20, 页码 36678-36690出版社
Optica Publishing Group
DOI: 10.1364/OE.465177Journal
关键词
-
类别
资金
- Deutsche Forschungsgemeinschaft
- [PAK 943 DE 486/22-1]
Novel diffractive surface structures were designed, evaluated, and optimized to achieve a significant increase in current density in organic solar cells. After comparing different surface patterns and further parameter optimization, a final current density enhancement of 5% was achieved.
Novel diffractive surface structures are designed, evaluated, and optimized to achieve a significant increase in current density in organic solar cells. The surface relief phase gratings are patterned based on concentric rings, a Fer mat's spiral, and an Archimedean spiral, respectively, and thus diffract incident light independent of its azimuthal angle, as they all exhibit circularly symmetric diffraction patterns. The grating pillars are arranged on the rings or spirals according to periodic or deterministic aperiodic Thue-Morse and Rudin-Shapiro sequences, tailoring the desired diffraction patterns. After evaluating the surface patterns against each other and further parameter optimization, a final current density enhancement of 5 % is achieved for one of the most promising patterns, the Thue-Morse sequence on an Archimedean spiral.
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