epitaxial diffused phototransistor

例句：

1. 1. The epitaxial layer of the solar cell is crucial for its performance.
   太阳能电池的外延层对其性能至关重要。
2. 2. Epitaxial growth has been studied extensively in the field of semiconductor materials.
   外延生长在半导体材料领域得到了广泛的研究。
3. 3. The epitaxial layer of the device was found to have a significant impact on its performance.
   该设备的外延层被发现对性能有显著影响。