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Biological solar cell having high open-circuit voltage

A technology of solar cells and open circuit voltage, which is applied in the field of solar cells, can solve the problems of price restrictions on the wide application of silicon cells, and achieve the effects of strong corrosion resistance, good adsorption, and simple preparation process

Inactive Publication Date: 2016-08-17
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shortage and high price of silicon raw materials limit the wide application of silicon cells

Method used

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  • Biological solar cell having high open-circuit voltage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] On the indium-doped tin dioxide conductive glass is a 500-nanometer-thick zinc oxide nanoparticle layer. The nanoparticle layer is covered with a fucoidin layer as a biological sensitizer layer, and an acetonitrile solution containing iodine and potassium iodide as an electrolyte layer. There are 100 The nano-platinum thin film layer is used as the electrode layer, and the top is indium-doped tin dioxide conductive glass.

[0016] The battery open circuit voltage was 0.719 volts.

Embodiment 2

[0018] On the fluorine-doped tin dioxide conductive glass is a 2 micron thick titanium dioxide nanoparticle layer, the nanoparticle layer is covered with a mixture of fucoidin, chlorophyll and lutein as a biosensitizer layer, and an acetonitrile solution containing sulfur and sodium sulfide as an electrolyte layer, on which there is a 10 nanometer fullerene thin film layer as an electrode layer, and the top is fluorine-doped tin dioxide conductive glass.

[0019] The battery open circuit voltage was 0.702 volts.

Embodiment 3

[0021] Titanium dioxide nanorod arrays with a thickness of 2 microns are placed on aluminum-doped zinc oxide conductive glass. The nanorod arrays are covered with a light-harvesting pigment protein complex containing fucoidin as a biosensitizer layer, and an aqueous solution containing iodine and potassium iodide as an electrolyte layer. There is a 50nm aluminum film layer on it as an electrode layer, and the top is aluminum-doped zinc oxide conductive glass.

[0022] The battery open circuit voltage was 0.736 volts.

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Abstract

The invention discloses a biological solar cell having high open-circuit voltage. The biological solar cell structurally comprises transparent conducting substrates, a metal oxide nanometer structure layer, a biological photosensitive agent layer, an electrolyte layer containing redox couples and an electrode layer. Compared with traditional biological sensitized solar cells, the biological solar cell takes pheophytin or compounds of pheophytin as a photosensitive agent and has the higher open-circuit voltage. The biological solar cell has the advantages as follows: the preparation process is simple, and the cell is environment-friendly and low in cost and has the broad application prospect in fields of biological solar cells, photocatalysis and the like.

Description

technical field [0001] The invention relates to a solar cell, in particular to a biological solar cell with high open circuit voltage. Background technique [0002] With the increasing consumption of non-renewable energy in the world, energy shortage and environmental degradation have become more and more serious problems faced by people in the new century. The development and utilization of clean and renewable energy has attracted more and more attention. Solar energy is an inexhaustible green energy source. The development of photovoltaic devices to effectively convert solar energy into electrical energy provides an important way to solve energy problems. [0003] In solar photovoltaic technology, silicon photovoltaic cells play a leading role in various photovoltaic processes due to their mature technology and high photoelectric conversion efficiency. However, the shortage and high price of silicon raw materials limit the wide application of silicon cells. With the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20
CPCH01G9/2031H01G9/204Y02E10/542
Inventor 张天宁陈鑫王书霞孙艳杨春红戴宁
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI