A wafer manufacturing device for a solar battery cell and a wafer manufacturing method using the same

Abstract

The present invention relates to a wafer making device for a solar battery cell having a high density silicon wafer for increasing generation efficiency, and a wafer manufacturing method using the same. The wafer making device comprises: a mold in the shape of a wafer for manufacturing a solar battery cell; a lift installed on said mold to elevate dissolved wafer raw material after the mold is filled; an actuator for elevating and lowering said lift; and a device for pressing the wafer material filling said mold to compress it during a hardening process thereby increasing the density of the wafer. The present invention significantly decreases supply costs for solar energy generation because it minimizes costs for solar battery cell manufacture, and it also increases generation efficiency.

Description

technical field [0001] The present invention relates to a wafer manufacturing device for solar cells and a wafer manufacturing method using the device, in particular to a wafer manufacturing device for solar cells with a higher density of silicon wafers and a wafer manufacturing method using the device method to improve power generation efficiency. Background technique [0002] Generally, solar cells can be classified into crystalline silicon solar cells, amorphous (amorphous) silicon solar cells, and compound semiconductor solar cells based on substrate materials. In addition, crystalline silicon solar cells can be divided into monocrystalline silicon solar cells and polycrystalline silicon solar cells. [0003] For solar cells, conversion efficiency is the most important characteristic. Among solar cells, compound semiconductor solar cells have relatively high conversion efficiency, which is close to 25%. However, since compound semiconductor solar cells are difficult t...

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Problems solved by technology

[0010] However, as mentioned above, the wafer preparation process for manufacturing conventional solar cells involves the preparation of a cylindrical silicon single crystal ingot, cutting and processing, and thus there is a problem of increased man-hours.

[0011] Furthermore, the power generation efficiency of solar cells is influenced by the density and purity of silicon, but in conventional methods, there is a limit to the improvement of wafer density, so there is a problem that it is difficult to increase solar power generation efficiency

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