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The photosystem of the chloroplast, which was in the thylakoid membrane, was surrounded by a space called the lumen. This was what the chlorophyll solar cells mimicked.
The semi-permeable membrane was densely packed with all types of chlorophyll and plastocyanin on both sides, and a layer of electrolyte solution was placed on the side that corresponded to the lumen. Then, a metal plate was attached to make it completely airtight. Electrodes were placed on the metal plate to receive the flow of electricity.
The solar cell made of chlorophyll was complete. The finished experimental solar cell was one meter squared, three centimeters thick, and around two kilograms.
“What is that?” Young-Joon asked as he walked into the lab and saw the trash that was pushed to one corner. “Why is there shattered glass rolling around? Did you break a beaker or something?”
“No,” Jung Hae-Rim replied. “Soon-Yeol bought a small lightbulb to see if it would light up, but he dropped it and broke it.”
“What a waste. It was brand new,” Young-Joon said.
“It wasn’t new. It was broken,” Jung Hae-Rim replied, grinning.
“Why was it broken?”
“Because we managed to connect it to the solar battery before dropping it.”
“So?”
“Instead of lighting up, the fuse blew out.”
“...”
“Because of the overcurrent.”
“Doctor...
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