Device and method for preparing porous zinc-oxide film in solar battery

Abstract

The invention relates to a device and a method for preparing a porous zinc-oxide film in a solar battery. The device comprises a vacuum chamber (4), a high-pressure argon-gas bottle (6), a molecular pump (5), a tantalum furnace (1), conductive glass (3) and a boron-nitride crucible (2), wherein the high-pressure argon-gas bottle (6) and the molecular pump (5) are respectively connected with the vacuum chamber (4), the high-pressure argon-gas bottle (6) is used for injecting argon gas into the vacuum chamber, the molecular pump (5) is used for controlling the gas flow pumped out of the vacuum chamber (4), the tantalum furnace (1) is placed at the bottom in the vacuum chamber (4), the conductive glass (3) is placed at the upper part in the vacuum chamber (4), the boron-nitride crucible (2) is placed in the tantalum furnace (1), zinc oxide is placed in the boron-nitride crucible (2), and two voltage sources are respectively applied to both ends of the tantalum furnace (1). Through the device and the method provided by the invention, the preparation process of a sensitized solar battery can be simplified, the preparation cost is lowered, the performance of the sensitized solar battery is improved, and the favorable promotion is provided for the further commercialization of the sensitized solar battery.

Description

technical field [0001] The invention proposes a new preparation method of a porous zinc oxide film in a solar cell, which can be used for sensitizing the solar cell. Background technique [0002] With the growth of the global population and the rapid development of the economy, energy shortages and environmental pollution problems are becoming increasingly tense. At present, the key to restricting the market application of solar cells is to improve the conversion efficiency and reduce the cost of solar cells. The dye-sensitized solar cell is simple in manufacturing process and low in cost. At the same time, due to the quantum size effect of quantum dots, solar cells can absorb photons in a specific wavelength range by adjusting the size of quantum dots, so quantum dot-sensitized solar cells have higher application value in theory. [0003] The most important part of the sensitized solar cell is the photoanode, that is, a 1-10 micron thick oxide film is grown on the conduct...

AI Technical Summary

Problems solved by technology

Among them, the hydrothermal method is a common preparation method, but there are many shortcomings in the preparation methods of these photoanodes, such as the photoanodes prepared by the anodic oxidation method have low solar energy efficiency, poor film mechanical properties, and are easy to break; the films prepared by magnetron sputtering are too Dense, not able to absorb quantum dots or dyes well

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