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Crystalline silicon solar battery and amorphous silicon solar battery

A technology of solar cells and crystalline silicon cells, which is applied in the field of solar cells to achieve the effects of increased utilization, increased power generation, and improved conversion efficiency

Inactive Publication Date: 2012-05-16
XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, these spectral losses lead to a theoretical maximum conversion efficiency of about 31% for a single-junction monocrystalline silicon cell with a forbidden band width Eg=1.1ev

Method used

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  • Crystalline silicon solar battery and amorphous silicon solar battery
  • Crystalline silicon solar battery and amorphous silicon solar battery
  • Crystalline silicon solar battery and amorphous silicon solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The structure of the crystalline silicon solar cell of the present embodiment is as figure 1 As shown, it includes an anti-reflection film layer 11 , an ultra-clear rolled glass layer 12 , a second sealing layer 13 , a crystalline silicon cell 14 , a first sealing layer 15 and a TPT backplane 16 combined in sequence. There is also 0.5wt% CeO in the ultra-clear rolled glass layer 12 2 and 1 wt% of Sm 2 o 3 Emitters of rare earth oxides. Among them, the thickness of the antireflection film layer 11 is 100nm, and the material is silicon dioxide; the thickness of the ultra-clear rolled glass layer 12 is 3.2mm; the thickness of the second sealing layer 13 is 0.38mm, and the material is EVA; the thickness of the first sealing layer 15 is It is 0.38mm and the material is EVA.

[0027] The crystalline silicon solar cell of this embodiment 1 utilizes Ce and Sm ions to absorb ultraviolet light and down-convert and emit visible light, so that the ultraviolet light originally a...

Embodiment 2

[0029] The structure of the crystalline silicon solar cell of the present embodiment is as figure 1 As shown, it includes an anti-reflection film layer 11 , an ultra-clear rolled glass layer 12 , a second sealing layer 13 , a crystalline silicon cell 14 , a first sealing layer 15 and a TPT backplane 16 combined in sequence. In the second sealing layer 13 , the organic luminescent dye Lumogen-F 570 is doped with a luminous body, accounting for 2% of the volume of the second sealing layer 13 . Among them, the thickness of the antireflection film layer 11 is 100nm, and the material is silicon dioxide; the thickness of the ultra-clear rolled glass layer 12 is 3.2mm; the thickness of the second sealing layer 13 is 0.38mm, and the material is EVA; the thickness of the first sealing layer 15 is It is 0.38mm and the material is EVA.

[0030] The second sealing layer 13 of the crystalline silicon solar cell in Example 2 is doped with organic luminescent dye Lumogen-F 570, which absorb...

Embodiment 3

[0032] The structure of the crystalline silicon solar cell of the present embodiment is as figure 2 As shown, it includes an anti-reflection film layer 11, an ultra-clear rolled glass layer 12, a second sealing layer 13, a double-sided crystalline silicon cell sheet 14, an up-conversion luminescent film layer 17, a specular reflection layer 18, and a first sealing layer combined in sequence. connection layer 15 and TPT backplane 16. Doping 1% of rare earth Eu ion luminescent material in the anti-reflection film layer 11 . Wherein, the thickness of the anti-reflection film layer 21 is 100nm, and the material is a silicon dioxide film; the up-conversion light-emitting film layer 17 is NaYF doped with 1% Er and 1% Yb rare earth oxide. 4 The thickness of the up-conversion luminescent film layer 17 is 100nm; the thickness of the specular reflection layer 18 is 20nm, and the material is aluminum film; other materials are the same as above.

[0033] In the double-sided crystalline...

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Abstract

The invention discloses a crystalline silicon solar battery and an amorphous silicon solar battery. The crystalline silicon solar battery comprises an antireflective film layer, a light-transmitting glass layer, a second sealing layer, a crystalline silicon battery piece, a first sealing layer and a TPT backboard which are sequentially combined, wherein the antireflective film layer, the light-transmitting glass layer, the first sealing layer and / or the second sealing layer respectively contain illuminant. The amorphous silicon solar battery comprises an antireflective film layer, a light-transmitting glass layer, a transparent conductive film, an amorphous silicon pin film layer and a metal back electrode, wherein the antireflective film layer, the light-transmitting glass layer and / or the transparent conductive film respectively contain illuminant. According to the solar batteries disclosed by the invention, sunlight can be subjected to spectrum down-conversion, spectrum up-conversion and / or spectrum transfer; and ultraviolet light and near-infrared light in the sunlight can be converted into visible light, so that the utilization ratio of the sunlight is effectively improved, the conversion efficiency is effectively promoted, and the generated energy is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a crystalline silicon solar cell and an amorphous silicon solar cell. Background technique [0002] Energy issues have become a major concern in the world today. Governments of all countries are vigorously developing renewable energy. Solar energy, as a representative of renewable energy, is inexhaustible and inexhaustible. It is the most effective clean energy. The average annual radiation per square meter of the earth's surface can generate 1700kW.h of electricity, that is, the received solar radiation can meet 10,000 times the global energy demand, or the solar radiation received by the earth's surface every hour can meet the global energy demand for one year. According to the International Energy Agency, installing solar photovoltaic systems on 4% of the world's deserts is enough to meet global energy demand. Solar photovoltaic enjoys a broad development spac...

Claims

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Application Information

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IPC IPC(8): H01L31/055
CPCY02E10/50Y02E10/52
Inventor 董清世万军鹏
Owner XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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