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Ten Kate, O.M. (author), De Jong, M. (author), Hintzen, H.T. (author), Van der Kolk, E. (author)
Solar cells of which the efficiency is not limited by the Shockley-Queisser limit can be obtained by integrating a luminescent spectral conversion layer into the cell structure. We have calculated the maximum efficiency of state-of-the-art c-Si, pc-Si, a-Si, CdTe, GaAs, CIS, CIGS, CGS, GaSb, and Ge solar cells with and without an integrated...
journal article 2013
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Guziy, O. (author), Grzanka, S. (author), Leszczynski, M. (author), Perlin, P. (author), Schemmann, M. (author), Salemink, H.W.M. (author)
We demonstrate an integrated tunable coupled-cavity InGaN/GaN laser with the emission wavelength centered on 409 nm. The electronic tuning range was 1.6 nm and threshold currents were 650 mA per cavity for 8.7-?m-wide laser ridges. Multimode laser emission with an average full width at half maximum of 0.3 nm was observed. We estimate the...
journal article 2012
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Dündar, M.A. (author), Kicken, H.H.J.E. (author), Silov, A.Y. (author), Nötzel, R. (author), Karouta, F. (author), Salemink, H.W.M. (author), Van der Heijden, R.W. (author)
Mode-dependent shifts of resonant frequencies of cavities in liquid crystal (LC) infiltrated planar photonic crystals (PhC) are experimentally observed when the temperature is varied across the LC ordering transition. The shifts can be in opposite directions, even for two very similar nearly degenerate modes. The behavior is attributed to the...
journal article 2009