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Method for 3D printing of thin-film solar cell

A solar cell and 3D printing technology, applied in the field of 3D printing thin-film solar cells, can solve the problems of inability to effectively control the printing quality, low photoelectric conversion efficiency of thin-film solar cells, etc., achieve controllable surface roughness, highlight substantive features, improve performance effect

Active Publication Date: 2021-04-27
BEIFANG UNIV OF NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first aspect of the present invention is to solve the problems existing in the prior art. The printing quality cannot be effectively controlled during the printing process, so that the photoelectric conversion efficiency of the printed thin-film solar cells is low, resulting in the existing technology using 3D printing technology to print thin films. The problem of solar cells provides a method for 3D printing thin-film solar cells, which can effectively control the printing quality during the 3D printing process and improve the photoelectric conversion efficiency of the printed thin-film solar cells. The main ideas are:

Method used

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  • Method for 3D printing of thin-film solar cell
  • Method for 3D printing of thin-film solar cell

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Embodiment 1

[0062] see Figure 1-Figure 2 , a method for 3D printing thin-film solar cells is provided in this embodiment, comprising the following steps: Step 1, constructing a 3D printing system for printing thin-film solar cells; wherein, the 3D printing system includes a 3D printer, a detection unit, Host computer and cloud platform, wherein, described 3D printer comprises hot bed 403, print nozzle 306, delivery pump, and delivery pump communicates with described printing nozzle 306 and the container that is used to store slurry through delivery pipeline 307 respectively, so that for The slurry is powered by the output of the printing nozzle 306; the slurry used for printing can be configured in advance in the container, so it will not be repeated here; the hot bed 403 can preferably use polyimide heating sheet or PCB heating Bed, in order to heat up to the set temperature, prevent the problem of edge warping in the printing process; the print nozzle 306 is used to output the configur...

Embodiment 2

[0093] The main difference between this embodiment 2 and the above-mentioned embodiment 1 is that this embodiment provides a more compact 3D printing system, especially suitable for printing thin-film solar cells; specifically, as Figure 3-Figure 6 As shown, in this embodiment, the frame 100 can be a rectangular parallelepiped frame built from profiles 101, such as image 3 As shown, and the profiles 101 are respectively configured with installation grooves 102 distributed along the length direction and used for connecting bolts, so as to facilitate the installation, fixation and adjustment of various components.

[0094] In order to adjust the position of the print nozzle 306 along the Z direction, as a preference, in this embodiment, the vertical drive mechanism may include a first motor 203, a screw 204, a nut 205 adapted to the screw 204, Vertical slider 206 and guide bar 207, wherein,

[0095] Such as Figure 4-Figure 6As shown, the guide rod 207 is vertically fixed on...

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Abstract

The invention relates to a method for 3D printing of a thin-film solar cell. The method comprises the following steps of S1, constructing a 3D printing system; S2, setting initial printing parameters through an upper computer; S3, acquiring image data of a printed thin film solar cell by using an image acquisition sensor; S4, carrying out image processing on the image data by using a cloud platform to obtain surface roughness; S5, comparing the surface roughness data with a set threshold value, and adjusting the initial printing parameters according to a set adjusting method; and S6, the step 3 and the step 4 are repeated until printing is completed. According to the method for 3D printing, the printing process of a thin-film solar cell is fed back and adjusted by monitoring the surface roughness in the deposition process of the thin-film solar cell, so that the surface roughness of the thin-film solar cell in the 3D printing process of the thin-film solar cell is controllable, the quality of the printed thin-film solar cell can be guaranteed, and the performance of the printed thin-film solar cell can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of thin film solar cells, in particular to a method for 3D printing thin film solar cells. Background technique [0002] At present, the utilization of renewable energy has been paid more and more attention by people. Solar power generation technology has become one of the effective ways to solve energy and environmental problems. Solar cells are simple in process, low in cost, wide in source of materials, and high in theoretical photoelectric conversion efficiency. , if it can be produced quickly, it will provide great convenience for human electricity consumption. [0003] In the prior art, 3D printing technology has been used to manufacture solar cells, which can effectively solve the problems of high cost and time-consuming traditional solar cell manufacturing; however, in the prior art, there is no related technology about 3D printing thin-film solar cells The main reason is that the printing quality c...

Claims

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Application Information

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IPC IPC(8): B29C64/393B33Y50/02B33Y80/00
CPCB29C64/393B33Y50/02B33Y80/00
Inventor 魏舒怡李晓英张秀霞储金全杨来龙郝健邢东源孙昭肖其容马浩哲马源泽
Owner BEIFANG UNIV OF NATITIES
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