Low-temperature sintered crystalline silicon solar cell positive electrode silver slurry and preparing method thereof
A solar cell, low-temperature sintering technology, applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc. The effect of high photoelectric conversion efficiency, low sintering temperature, and reduced metallization temperature
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Embodiment 1
[0032] Step A: Prepare glass powder. Weigh 8.0wt% bismuth oxide, 27.0wt% tellurium oxide, 60.0wt% lead oxide, 5.0wt% lithium oxide, 0.3wt% potassium oxide. Mix the above raw materials evenly with a three-dimensional mixer, put them in a platinum crucible, put them in a high-temperature resistance furnace for melting, and melt them at 1000°C for 1 hour. After taking them out, they are water-quenched, crushed, ball-milled, sieved, and dried at 65°C. Sieve to obtain glass powder with an average particle size of 0.3-1.5 μm;
[0033] Step B: Preparation of organic vehicle. Take by weighing 63.0wt% diethylene glycol butyl ether, 12.0wt% diethylene glycol dibutyl ether, 12.0wt% butyl carbitol acetate, 6.0wt% ethyl cellulose, 3.5wt% surfactant Class 85, 0.5wt% organic bentonite as anti-settling agent. First add diethylene glycol butyl ether, diethylene glycol dibutyl ether and butyl carbitol acetate into a stainless steel container and mix, then add ethyl cellulose during the stirr...
Embodiment 2
[0044] Step A: Weigh 30.0wt% bismuth oxide, 20.0wt% tellurium oxide, 49.0wt% lead oxide, 1.0wt% lithium oxide, 0.1wt% potassium oxide. After mixing the above raw materials evenly with a three-dimensional mixer, put them in a platinum crucible, place them in a high-temperature resistance furnace for melting, and melt them at 950°C for 1 hour. After taking them out, they are water-quenched, crushed, ball-milled, sieved, and dried at 75°C. Sieve to obtain glass powder with an average particle size of 0.3-1.5 μm;
[0045] Step B: Preparation of organic vehicle. Weigh 64.0wt% diethylene glycol butyl ether, 15.5wt% diethylene glycol dibutyl ether, 10.0wt% butyl carbitol acetate, 5.0wt% ethyl cellulose, 6.0wt% surfactant Class 85, 1.6wt% organic bentonite as anti-settling agent. First add diethylene glycol butyl ether, diethylene glycol dibutyl ether and butyl carbitol acetate into a stainless steel container and mix, then add ethyl cellulose during the stirring process, raise the ...
Embodiment 3
[0056] Step A: Weigh 17.0wt% bismuth oxide, 60.0wt% tellurium oxide, 20.0wt% lead oxide, and 3.0wt% lithium oxide. After mixing the above raw materials evenly with a three-dimensional mixer, put them in a platinum crucible, put them in a high-temperature resistance furnace for melting, and melt them at 900 ° C for 1 hour. After taking them out, they are water quenched, crushed, ball milled, sieved, and dried at 70 ° C. Sieve to obtain glass powder with an average particle size of 0.3-1.5 μm;
[0057] Step B: Preparation of organic vehicle. Weigh 60.0wt% diethylene glycol butyl ether, 8.0wt% terpineol, 12.0wt% diethylene glycol dibutyl ether, 10.0wt% butyl carbitol acetate, 12wt% ethyl cellulose, 4.0wt% % nitrocellulose, 3.0wt% surfactant Span 85, 1.0wt% anti-sedimentation agent organic bentonite. First add diethylene glycol butyl ether, terpineol, diethylene glycol dibutyl ether and butyl carbitol acetate into a stainless steel container for mixing, then add ethyl cellulose ...
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