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Preparation method of colorful crystalline silicon cell sheet

A technology for crystalline silicon cells and cells, which is applied in the manufacture of circuits, electrical components, and final products. It can solve the problems of poor uniformity of film color between sheets, low yield, and poor process repeatability, so as to improve uniformity and consistency. , repeatability and yield improvement effect

Inactive Publication Date: 2018-08-31
DONGFANG HUANSHENG PHOTOVOLTAIC (JIANGSU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this method, the film color uniformity between sheets is poor, the process repeatability is poor and the yield is low.

Method used

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  • Preparation method of colorful crystalline silicon cell sheet
  • Preparation method of colorful crystalline silicon cell sheet
  • Preparation method of colorful crystalline silicon cell sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: In order to obtain solar cells with a golden appearance, set the coating process as shown in Table 1:

[0022] Table 1: Appearance film color process formula

[0023]

[0024] Step 2: Insert the silicon wafer to be coated into the graphite boat and enter the coating furnace tube;

[0025] Step 3: Vacuumize the furnace tube and keep the temperature at 450°C;

[0026] Step 4: Introduce silane and ammonia gas, and perform coating according to the coating process set in step 1, and set the process pressure to 1800mTorr, and the duty ratio to 4:35;

[0027] Step 5: After the furnace tube is cleaned and vacuumed, press back out of the boat;

[0028] Step 6: After the graphite boat cools down, unload the battery slices from the boat.

Embodiment 2

[0030] Step 1: In order to obtain solar cells with a green appearance, set the coating process as shown in Table 2:

[0031] Table 2: Appearance film color process formula

[0032]

[0033] Step 2: Insert the silicon wafer to be coated into the graphite boat and enter the coating furnace tube;

[0034] Step 3: Vacuumize the furnace tube and keep the temperature at 450°C;

[0035] Step 4: Introduce silane and ammonia gas, and perform coating according to the coating process set in step 1, and set the process pressure to 1800mTorr, and the duty ratio to 4:35;

[0036] Step 5: After the furnace tube is cleaned and vacuumed, press back out of the boat;

[0037] Step 6: After the graphite boat cools down, unload the battery slices from the boat.

Embodiment 3

[0039] Step 1: In order to obtain solar cells with a light yellow appearance, set the coating process as shown in Table 3:

[0040] Table 3: Appearance film color process formula

[0041]

[0042] Step 2: Insert the silicon wafer to be coated into the graphite boat and enter the coating furnace tube;

[0043] Step 3: Vacuumize the furnace tube and keep the temperature at 450°C;

[0044] Step 4: Introduce silane and ammonia gas, and perform coating according to the coating process set in step 1, and set the process pressure to 1800mTorr, and the duty ratio to 4:35;

[0045] Step 5: After the furnace tube is cleaned and vacuumed, press back out of the boat;

[0046] Step 6: After the graphite boat cools down, unload the battery slices from the boat.

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PUM

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Abstract

The invention discloses a preparation method of a colorful crystalline silicon cell sheet. The preparation method is characterized in that according different combinations of technology time, silane flows and ammonia gas flows, required cell sheet appearance color is obtained. According to the invention, working processes are not increased in the traditional cell technology; by controlling the ratio of silicon to nitrogen and the time of coating technology, the uniformity and consistency of film colors can be remarkably improved; and controllability, repeatability and yield of the technology can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a manufacturing process of a novel crystalline silicon solar color cell. Background technique [0002] On the one hand, colored solar panels can absorb the light energy of different colors of sunlight in the sunlight spectrum, so they do not need to face the sun when they are working. On the other hand, colored solar cells meet the requirements of many architects and builders. They hope that solar cells can be perfectly combined with their buildings and buildings in addition to environmental protection and energy saving. [0003] At present, the method of adjusting the coating process time and controlling the film thickness is used to prepare color cells. However, with this method, the film color uniformity between sheets is poor, the process repeatability is poor and the yield is low. Contents of the invention [0004] Aiming at the problems existing in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCH01L31/18Y02P70/50
Inventor 黄标彭彪
Owner DONGFANG HUANSHENG PHOTOVOLTAIC (JIANGSU) CO LTD