M.Sc. Nano-Technology(Semester II) (CBCS)
Examination, 2017
NANO-ELECTRONICS
Day Date: Monday, 24-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B. part question 1iscompulsory.
Attempt any four questions from Part II.
Figures to the right indicate full marks.
Answers to the Part- 1 and Part -II are to written in
Same answer booklet only.
PART I
Q.1 Rewrite the sentence after choosing correct answer from
the given alternatives
07
Molecular scale electronics is also called molecule
electronics.
Single Double
Three Four
Microelectromechanical system (MEMS) is the technology of
devices
Microscopic Macroscopic
Electroscopic None of these
An electrical insulator is a material whose internal electric
charges freely.
Flow Do not flow
Move Cross
A laser is a device that emits light through a process of
optical amplification based on the stimulated emission of
____radiation.
X-ray IR-ray
Gama-ray Electromagnetic
Schottky junction is a barrier for electrons formed at a
metal-semiconductor junction.
Voltage energy Current energy
Potential energy Magnetic energy
A fuel cell is a device that converts the from a fuel into
electricity.
Mechanical energy Chemical energy
Physical energy Electro energy
Page 1 of 2
Hybrid materials are consisting of two constituents at
the nanometer or molecular level.
Ceramics Composites
Metals Non-metal
Q.1 Define/Explain the following in one word or one sentence. 07
Optical lithography
Semiconductor
MEMS
Optical amplifiers
LED
PN-Junction
Thermodynamics
PART II
Answer any four of the following
Q.2 What is meant by molecular electronics? Explain properties of
molecular electronics.
14
Q.3 Give a detailed note on semiconductors and insulators. 14
Q.4 What is meant by laser? Explain in detail, the applications of LED. 14
Q.5 What is electron field emission? Explain in detail, applications of
electron field emission.
14
Q.6 Write note on any two of the following. 14
a. PN-Junction
b. Semiconductor
c. Carbon solar cell
Q.7 Explain in detail on any two of the following. 14
a. Thermodynamics of conversion of chemical energy into
electrical energy
b. Design of fuel cell
c. Types of metal hybrids.