How is the manufacturing process of solar lamps

Step 1: To make a titanium dioxide film, first put the titanium dioxide powder into a mortar and grind it with a binder, then use a glass rod to slowly coat the conductive glass, put the titanium dioxide film into an alcohol lamp and sinter for 10 to 15 minutes, then Cooling Step 2: Use natural fuel to color titanium dioxide, squeeze fresh or frozen black plum, mountain plum, pomegranate seeds or black tea with a tablespoon of tax, then put the titanium dioxide film in for coloring, about 5 minutes, until the film layer turns dark purple, if the coloring on both sides of the film layer is uneven, you can put it in and soak for 5 minutes, then rinse with ethanol, and gently dry with soft paper. Step 3: Make a counter electrode battery A positive electrode is needed, and of course a counter electrode is needed. The positive electrode, like the counter electrode, is made of a layer of SnO2 coated with a conductive layer. A simple multimeter can be used to judge that the side of the glass is conductive, and a finger can also be used to judge that the conductive surface is relatively rough. Mark the non-conductive surface with a ‘+’ as shown in 5, and then use a pencil to evenly coat the conductive surface with a layer of graphite.Step 4: Add the electrolyte The solution containing iodide ions is used as the electrolyte of the solar cell, which is mainly used for reducing and regenerating the fuel. As shown in Figure 6, one or two drops of electrolyte can be added dropwise on the surface of the titanium dioxide film. Step 5: Assemble the battery Put the colored titanium dioxide film face up on the table, drop one or two drops of electrolyte containing iodine and iodide ions on the film, and then press the conductive side of the counter electrode down on the titanium dioxide film . The two pieces of glass were slightly staggered to use the exposed part for the electrode test. Use two clips to clamp the battery, in this way, your solar cell is completed. Step 6: Battery test Under outdoor sunlight, you can get an open circuit voltage of 0.4V