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1. (WO2017198006) SOLAR CELL FRONT-SIDE SILVER PASTE DOPED WITH MODIFIED GRAPHENE, AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2017/198006    International Application No.:    PCT/CN2017/080019
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Wed Apr 12 01:59:59 CEST 2017
IPC: H01B 1/22
H01B 1/24
H01B 1/16
H01B 1/18
Applicants: NANTONG T-SUN NEW ENERGY CO., LTD.
南通天盛新能源股份有限公司
Inventors: ZHU, Peng
朱鹏
Title: SOLAR CELL FRONT-SIDE SILVER PASTE DOPED WITH MODIFIED GRAPHENE, AND PREPARATION METHOD THEREFOR
Abstract:
A solar cell front-side silver paste doped with modified graphene, and a preparation method therefor. The solar cell front-side silver paste doped with modified grapheme consists of the following components in parts by weight: 0.1 to 5 parts of modified graphene, 88 to 91 parts of silver powder, 5 to 15 parts of organic binder, 0.1 to 5 parts of organic solvent, and 1 to 3 parts of glass powder, the modified graphene being graphene with surface modification. To lower series resistance of a solar cell, a fast silk screen is developed and is printed on a crystalline silicon, a silicon wafer SiNx passivation layer is penetrated by means of a high-temperature sintering, and accordingly the front-side silver paste having good ohmic contact is formed; thereby reducing the silver and silicon contact resistance and the line resistance, and improving the photoelectric conversion efficiency.