Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4822105
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Funding
- Swiss National Science Foundation [200020_137700/1]
- European Union [241277, 283501]
- Swiss National Science Foundation (SNF) [200020_137700] Funding Source: Swiss National Science Foundation (SNF)
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We studied solar cells with periodic interface texture. For periods of 550 and 833 nm, we found that the measured photocurrent increases under oblique incidence and assumes a maximum between 20 degrees and 30 degrees. For the geometries used in our experiments, the initial increase occurred for conditions close to those of photonic band gaps. In addition to a forbidden band of energies where waveguide modes cannot propagate, we found that the coupling to the high-energy branches was suppressed under conditions of high symmetry such as sinusoidal interface geometry and perpendicular incidence. (C) 2013 AIP Publishing LLC.
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