Ph.D. Course Work Examination June July 2017
PHYSICS Paper III and Paper IV
Advanced Development in Physics: Solar Cells and Super Capacitor
Day Date: Friday, 30-06-2017 Max. Marks: 100
Time: 11.00 AM to 02.00 PM
Instructions: All questions are compulsory.
All questions carry equal marks.
Q.1 Define solar cell? Explain short circuit current and open circuit
voltage using I-V characteristics curve.
10
Write short note on any two: 10
Solar radiations and solar spectrum
P-N hetero and homojunctions
Internal photon conversion efficiency (IPCE)
Q.2 Explain working of GaAs based solar cells and CuInSe2 based
solar cell and difference between them.
10
Write short note on any two: 10
Photoelectrochemical cells
Limitation of dye sensitized solar cells
Advantages of metal-semiconductor solar cells
Q.3 Write basic concept and working and materials of dye sensitized
solar cells.
10
Write short note on any two: 10
Silicon solar cells
Applications of solar cells
Photovoltaic effect
Q.4 Explain different types of super capacitors. 10
Write short note on any two: 10
Psudocapacitors super capacitors
Disadvantages of electrochemical double layer
Hybrid super capacitors
Q.5 Discuss cathodic and anodic electrode materials, their preparation
and applications.
10
Write short note on any two: 10
Applications of super capacitors
Carbon material based super capacitors
Metal oxide based super capacitors