40年之后，美国发明家查尔士•弗里兹(CharlesFritts)用硒和薄金片制造出第一枚光能电池，发电效率低于1%。
About 40 years later Charles Fritts, an American inventor, built the first solar cell. Made with selenium and a thin layer of gold, the device was less than 1% efficient.
40年之后，美国发明家查尔士•弗里兹(CharlesFritts)用硒和薄金片制造出第一枚光能电池，发电效率低于1%。
About 40 years later Charles Fritts, an American inventor, built the first solar cell. Made with selenium and a thin layer of gold, the device was less than 1% efficient.
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