You can use a panel of solar cells to create the current directly, by liberating electrons from a semiconducting material such as silicon.

你可以使用一块太阳能池板从硅等半导体材料中释放子直接制造。

By changing the electrical charge of the gate, the conductivity of the semiconducting material can be manipulated, allowing current to flow or be stopped – like the water faucet analogy we discussed earlier.

通过改变" 门" 的荷，我们可以控制半导体的导性，允动或停止——就像前面提到的水龙头比喻。