mik3,
Ratch
I gave this reference before, but I will do so again. From Volume I, Second Edition, Semiconductor Fundamentals by Robert F. Pierret and Gerold W. Neudeck. Footnote on page 30 "..Of prime importance is the drastic simplification resulting from the fact that the quantum-mechanical entities known as electrons and holes may be treated, both conceptually and mathematically, as classical particles." The book goes on to show that holes have an equivalent mass. Strange and mysterious things happen at the quantum level, such as the Heisenberg Uncertainly Principle, that have no macro world equivalent.Holes are not particles. People think of them as particles to make thinks easier. A hole is just a place where an electron was before it leaves this place.
I will let you explain why a hole is not considered neutral. After all, when you remove the electron, doesn't that make it neutral?Because the electron is negative the hole is said to be positive.
Ratch