Visible light response solar energy battery

A solar cell, visible light technology, applied in photovoltaic power generation, renewable energy integration, circuits, etc., can solve problems such as inability to use energy

Inactive Publication Date: 2007-04-18
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the main drawbacks of solar cells is that they cannot use most of the energy in the sun's rays,

Method used

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  • Visible light response solar energy battery
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Examples

Experimental program
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Effect test

example 1

[0024] Incorporation of rare earth-containing semiconducting oxides Bi 2 PrNbO 7 Nanorod colloids coated on transparent conductive glass substrates to form wide bandgap Bi 2 PrNbO 7 The nanorod array film is baked at 600°C for 1 hour, cooled and repeated until a 10 μm oxide film is obtained, and then visible light can be obtained after 24 hours of immersion sensitization in dye sensitizer solution, dropping electrolyte and simple packaging Responsive solar cells.

example 2

[0026] The green light-storage material SrAl obtained by co-precipitation 2 o 4 :Eu 2+ (1%), Dy 3+ (2%) nano wire colloid is evenly coated on the glass 1 below, baked at 500° C. for 1-2 hours, removes the organic colloid and obtains the glass that is coated with a light storage material film 7 with a thickness of 10 μm, and then used for active A solar cell responsive to visible light is packaged to obtain a solar cell that can continue to work with or without sunlight.

example 3

[0028] The blue light-storing material Sr obtained by the hydrolysis method 3 MgSi 2 o 8 :Eu 2+ (1%), Ho 3+ (1%) nanotube colloid is evenly coated on the glass 1 below, baked at 500° C. for 1-2 hours, and repeats the operation after cooling until the glass of light storage material film 7 with a thickness of 1 μm is obtained; The combination of solar cells results in solar cells that can continue to work in the presence or absence of sunlight.

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Abstract

The invention discloses a visible light response solar battery, comprising transparent opposite electrodes, electrolyte, dye sensitizer, semiconductor material film and transparent conductive glass stacked in turn between transparent glass, where the transparent glass is coated with a 1-100 mum thick film layer of rare-earth light storage material which is rare-earth containing oxide, sulfide, or oxysulfide with long afterglow performance. And the ligh storage rare-earth functional material can store part of solar energy and emits visible light at night to make the solar battery absorb part of the emitted visible light at night to continue operating, and simultaneously the unabsorbed visible light emitted by the light storage material can be used to decorate and illuminate. And the invention can fully absorb UV and visible light from sunlight, improving photoelectric converting efficiency of the solar battery. If the solar battery and glass are combined and used in buildings or street lamps, they can play the role of saving energy and decorating.

Description

technical field [0001] The invention belongs to the technical field of solid-state dye solar cells, in particular to a visible light responsive solar cell. Background technique [0002] With the rapid growth of the world's population and the increasingly serious environmental pollution, energy and the environment have become a major challenge facing mankind and a key issue that needs to be resolved urgently. Solar energy is an inexhaustible and inexhaustible renewable energy for human beings. It is also a clean energy that does not produce any environmental pollution. It is considered to be the best green energy that is most likely to replace fossil energy in this century. Therefore, the development of solar energy The use of solar energy has been paid attention to by countries all over the world, and research on solar energy has been carried out one after another, and solar cells are one of the most effective ways to develop and utilize solar energy. At present, the applic...

Claims

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Application Information

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IPC IPC(8): H01L31/04H01M14/00H01G9/20
CPCY02B10/10Y02E10/542
Inventor 郭崇峰
Owner HUAZHONG UNIV OF SCI & TECH
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