bulk photocurrent

例句：

1. 1. The device generates a bulk photocurrent when it is powered on.
   该装置在通电时会产生大量电流。
2. 2.The battery's capacity is determined by the amount of bulk photocurrent it can produce.
   电池的容量由它能够产生的大量电流决定。
3. 3. The researchers found that the bulk photocurrent was significantly reduced in the treated sample.
   研究人员发现，处理后的样品中的大量电流显著减少。