2013
DOI: 10.1002/aenm.201201064
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Doubling the Power Output of Bifacial Thin‐Film GaAs Solar Cells by Embedding Them in Luminescent Waveguides

Abstract: Thin‐film, microscale GaAs solar cells transfer printed into luminescent concentrating waveguides show significantly enhanced power output compared to cells evaluated in isolation. Experimental and numerical simulation results demonstrate that optimized configurations involve a free‐standing waveguide and a diffuse backside reflector, as a way to maximize capture of both waveguided and scattered photons. Such unusual options in engineering design suggest promising additional avenues for the use of luminescent … Show more

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Cited by 49 publications
(40 citation statements)
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“…PMMA fi lm and a Si photodiode. [18][19][20] The Consistent with the EQE results of Figure 2 b, the photocurrent under UV illumination is much larger than that obtained under blue and red illumination. The photodiode uses a pn junction design with active area of 500 µm × 500 µm, fabricated on a 300 µm thick Si wafer, using conventional diffusion doping and lithographic process.…”
supporting
confidence: 86%
“…PMMA fi lm and a Si photodiode. [18][19][20] The Consistent with the EQE results of Figure 2 b, the photocurrent under UV illumination is much larger than that obtained under blue and red illumination. The photodiode uses a pn junction design with active area of 500 µm × 500 µm, fabricated on a 300 µm thick Si wafer, using conventional diffusion doping and lithographic process.…”
supporting
confidence: 86%
“…For both types of CPV + modules, the low per-area cost of energy from Si cells makes them attractive for use on the module backplane as diffuse light collectors. Emerging alternatives based on perovskites, organics, epitaxial lift-off III-Vs, each with the additional possibility of use in advanced luminescent concentration schemes (31,(40)(41)(42)(43)(44)(45), may also be considered. The bandgaps, in particular, are important.…”
Section: Resultsmentioning
confidence: 99%
“…The thin‐film filter is further integrated with microscale thin‐film PV detectors to demonstrate its capability for band selective photodetection ( Figure ). GaAs‐based detectors (size ≈ 700 µm × 700 µm, thickness ≈ 3.7 µm) are transferred onto glass substrates after epitaxial liftoff, with the released filter membrane printed on the device surface after encapsulation and metallization. The images of detectors with and without filters are shown in Figure a.…”
Section: Device Integration and Performancementioning
confidence: 99%