Light trapping in spherical silicon solar cell module

Maruyama, Toshiro; Minami, H.

doi:10.1016/s0927-0248(02)00375-6

Cited by 27 publications

(15 citation statements)

References 4 publications

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“…Spherical PV devices constructed from thin solar cells are attractive, because they embed an intrinsic LT form factor (39)(40)(41). Their spherical light-receiving surface also intrinsically serves as a passive tracking optic, accepting light from all directions.…”

Section: Resultsmentioning

confidence: 99%

Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications

Guo

Li²,

Ahn

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

205

173

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Fabrication of 3D electronic structures in the micrometer-to-millimeter range is extremely challenging due to the inherently 2D nature of most conventional wafer-based fabrication methods. Self-assembly, and the related method of self-folding of planar patterned membranes, provide a promising means to solve this problem. Here, we investigate self-assembly processes driven by wetting interactions to shape the contour of a functional, nonplanar photovoltaic (PV) device. A mechanics model based on the theory of thin plates is developed to identify the critical conditions for self-folding of different 2D geometrical shapes. This strategy is demonstrated for specifically designed millimeter-scale silicon objects, which are self-assembled into spherical, and other 3D shapes and integrated into fully functional light-trapping PV devices. The resulting 3D devices offer a promising way to efficiently harvest solar energy in thin cells using concentrator microarrays that function without active light tracking systems.

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Section: Resultsmentioning

confidence: 99%

Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications

Guo

Li²,

Ahn

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

205

173

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show abstract

“…Spherical Si solar cells can reduce the consumption of Si compared with the conventional crystal Si solar cells [12][13][14][15][16][17][18][19][20]. Flexible, light solar cells were also manufactured using silicon spheres with a diameter of ~1 mm with a pn junction [21].…”

Section: Introductionmentioning

confidence: 99%

Construction and characterization of spherical Si solar cells combined with SiC electric power inverter

Oku¹,

Matsumoto²,

Hiramatsu³

et al. 2015

AIP Conference Proceedings

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Abstract. Spherical silicon (Si) photovoltaic solar cell systems combined with an electric power inverter using silicon carbide (SiC) field-effect transistor (FET) were constructed and characterized, which were compared with an ordinary Sibased converter. The SiC-FET devices were introduced in the direct current-alternating current (DC-AC) converter, which was connected with the solar panels. The spherical Si solar cells were used as the power sources, and the spherical Si panels are lighter and more flexible compared with the ordinary flat Si solar panels. Conversion efficiencies of the spherical Si solar cells were improved by using the SiC-FET.

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“…Consumption of Si can be reduced for the use of spherical Si solar cells, compared with conventional crystal Si solar cells [15][16][17][18][19][20][21][22][23][24]. Flexible and light solar cells were also manufactured using silicon spheres with a diameter of ~1 mm with a pn junction at the sphere surface [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Construction and evaluation of photovoltaic power generation and power storage system using SiC field-effect transistor inverter

Oku¹,

Matsumoto²,

Hiramatsu³

et al. 2016

AIP Conference Proceedings

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Light trapping in spherical silicon solar cell module

Cited by 27 publications

References 4 publications

Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications

Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications

Construction and characterization of spherical Si solar cells combined with SiC electric power inverter

Construction and evaluation of photovoltaic power generation and power storage system using SiC field-effect transistor inverter

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