What is done to create an extrinsic semiconductor?

Related MCQs

• Which of the following is not a metallic impurity found in glass in extrinsic absorption?
• The hole concentration in extrinsic materials is _________ electron concentration.
• _________ semiconductor laser sources generally have broader bandwidths.
• A semiconductor laser crystal of length 5 cm, refractive index 1.8 is used as an optical source. Determine the frequency separation of the modes.
• When did the non-semiconductor laser developed?
• A perfect semiconductor crystal containing no impurities or lattice defects is called as
• The energy-level occupation for a semiconductor in thermal equilibrium is described by the
• The majority of the carriers in a p-type semiconductor are__________.
• Calculate the radioactive minority carrier lifetime in gallium arsenide when the minority carriers are electrons injected into a p-type semiconductor region which has a hole concentration of 1018cm-3. The recombination coefficient for gallium arsenide is
• In semiconductor injection laser, narrow line bandwidth is of the order