Subject: Physical Chemistry · Chapter: Solid State Chemistry · Topic: Band Theory · Exam: NET DEC 2011 · Marks: 2 · Difficulty: Medium
Consider a n-type semiconductor whose $\mathrm{E}_{\mathrm{v}}=0$, $\mathrm{E}_{\mathrm{C}}=2.0\,\mathrm{eV}$ and $\mathrm{E}_{\mathrm{D}}=1.98\,\mathrm{eV}$. The correct statement among the following is
(a)$\mathrm{E}_{\mathrm{F}}=1\,\mathrm{eV}$ and is independent of T
(b)$\mathrm{E}_{\mathrm{F}}=1.99\,\mathrm{eV}$ and remains independent of T
(c)$\mathrm{E}_{\mathrm{F}}=1.99\,\mathrm{eV}$ and increases towards 2.0 eV with increase of T
(d)$\mathrm{E}_{\mathrm{F}}=1.99\,\mathrm{eV}$ and decreases with increase of T.