This potential difference is called built-in potential. After joining p-type and n-type semiconductors, electrons from the n region near the pân interface tend to diffuse into the p region. As electrons diffuse, they leave positively charged ions (donors) in the n region.
Many people think that a baby rabbits is called a bunny, but this is actually just an affectionate nickname for rabbits, and not the correct English name for rabbit babies. So if baby rabbits are not called bunnies, then what are baby rabbits called? The correct term for a baby rabbit is kitten, often shortened to kit.
What is a baby turkey more correctly called other then a chick? A baby turkey is called a poult, pronounced the same as the longer poultry. What are baby turkeys called and what do they look like? Answer   it is called poult   Baby turkeys are a very light pink, a bit like humans skin colour.