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Photovoltaic power generation apparatus

A photovoltaic and photovoltaic layer technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problem that photons cannot reach the solid material layer

Pending Publication Date: 2019-03-12
SOLAR EARTH TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, further stacking of such layers is limited by the fact that photons simply cannot reach even deeper layers of solid-state materials.

Method used

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  • Photovoltaic power generation apparatus
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  • Photovoltaic power generation apparatus

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Embodiment Construction

[0040] As used herein, the term "about" refers to a + / - 10% variation from the nominal value. It is to be understood that such variations are always included in the given values ​​provided herein, whether or not they are specifically mentioned.

[0041]As used herein, the term "geometric prism" refers to a three-dimensionally shaped structure (eg, a microstructure) having a top surface and a bottom surface connected by flat or curved sidewalls. This type of shape is also referred to herein as a microprism, and includes cylinders, cubes, cuboids, rectangular prisms, hexagonal prisms, and the like. In various embodiments, the top and bottom surfaces are parallel and of similar size and shape. However, it is also conceivable that the structure may have differently sized and / or shaped top and bottom surfaces, eg conforming to a frusto-conical shape.

[0042] As used herein, the term "tapered shape" refers to a three-dimensional shaped structure having a top surface and non-paral...

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Abstract

The present invention relates to three dimensional photovoltaic structures and a power generation apparatus comprising same. The photovoltaic structure comprises a light transmitting solid optical core having a longitudinal axis, a top end, a bottom end and one or more side walls, wherein the top end has an exposed outer surface to receive light. a photovoltaic layer surrounds at least a portion of one or more of the side walls of the optical core and an optical cladding layer surrounds the photovoltaic layer.

Description

technical field [0001] The present invention relates to the field of photovoltaic power generation, and in particular to three-dimensional photovoltaic power generation devices such as solar cells. Background technique [0002] Most photovoltaic solar cells are flat designs in which sunlight harvesting occurs on a two-dimensional semiconductor layout. This is due to the fact that most photons carried in solar radiation can only penetrate a few micrometers into solid-state semiconductors (the probability of a photon reaching deeper regions inside a solar cell decreases exponentially with depth), and therefore photons from solar Photovoltaic interactions between electrons in the solar cell mainly occur on the surface of the solar cell. Due to advances in nanotechnology, semiconductor materials can be manipulated at the molecular and atomic levels, and it has become possible to stack multiple (two or three) PN junction layers on solar cells to obtain more The energy of the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/054H01L31/042H01L31/0352
CPCH01L31/035281H01L31/042H01L31/054Y02E10/52H01L31/0547H01L31/048H01L31/0504
Inventor 王孟张军彪王兴华
Owner SOLAR EARTH TECH LTD