What is the manufacturing process of solar lights?

(For reference only!) Step 1: Make a film of titanium dioxide. First put the titanium dioxide powder into a mortar and grind it with a binder. Then use a glass rod to slowly apply a film to the conductive glass. the titanium dioxide film in alcohol. Sinter under the lamp for 10 to 15 minutes, then cool. Step 2: Use a natural fuel to color the titanium dioxide. As shown in Figure 4, add fresh or frozen black plums, mountain plums and pomegranate seeds. or black tea with a tablespoon of tax. Squeeze, then put the titanium dioxide film for coloring. It will take about 5 minutes until the film layer turns dark purple. You can put it in and soak it for 5 minutes, then rinse it with ethanol and use a soft cloth. Dry gently with paper. Step 3: Make a Counter Electrode A Batteryrequires a positive electrode and of course a counter electrode. The positive electrode, like the counter electrode, is made of a conductive SnO2 film. You can use a simple multimeter to determine which side of the glass is conductive. You can also use your fingers to determine which side of the glass is rough. As shown in Figure 5, mark the non-conductive surface with a "+", then use a pencil to evenly apply a layer of graphite to the conductive surface. Step 4: Add electrolyte. Use a solution containing iodide ions as the electrolyte of solar cells. It is mainly used to reduce and regenerate fuel. As shown in Figure 6, simply add one to two drops of electrolyte onto the surface of the titanium dioxide film. Step 5: Assemble the battery. Place the colored titanium dioxide membrane face up on the table. Drop a drop or two of electrolyte containing iodine and iodide ions onto the membrane, then press the conductive side of the counter electrode face down onto the titanium. dioxide membrane. Offset the two pieces of glass slightly so that the exposed part can be used as the electrode for the test. Use two pliers to tighten the battery. This way your solar cell is complete. Step 6: Test the battery under outdoor sunlight. You can get a solar cell with an open circuit voltage of 0.4 V and a short circuit current of 1 mA/. cm2

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