Very useful for engineering students

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Computer Science and Engineering
SRI RAMAKRISHNA ENGINEERING COLLEGE
[Educational Service: SNR Sons Charitable Trust]
[Autonomous Institution, Accredited by NAAC with ‘A’ Grade]
[Approved by AICTE and Permanently Affiliated to Anna University, Chennai]
[ISO 9001:2015 Certified and all eligible programmes Accredited by NBA]
Vattamalaipalayam, N.G.G.O. Colony Post, Coimbatore – 641 022.
Course Instructor
Mrs.R.Vasanthapriya AP / Physics No. of Credits: 4
Department of Physics
20BS201 - PHYSICAL SCIENCES
PHYSICS

3. Courses Offered by Physics to various BE/B.Tech Programmes
Semester I – Theory Courses
Course Code Course Title Programme
20PH201 Engineering Physics Mechanical
20PH202 Waves and Optics Aeronautical
20PH203 Physics Civil
20PH204 Applied Sciences I RA
20PH205 Applied Physics ECE, EEE and EIE
20PH206 Biophysics BME
20BS201 Physical Sciences CSE, IT, AI & DS
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4. 20BS201 – PHYSICAL SCIENCES 4 0 0 4
COURSE OUTCOMES
CO1: Summarize the properties of
semiconductors and magnetic materials.
CO2: Illustrate the working of various light
emitting devices, optical fibers and photo
detectors with their applications.
CO3: Apply the principles of laser to various
optical devices used for memory storage.
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Computer Science and Engineering
SEMICONDUCTING MATERIALS 4
Elemental and compound semiconductors - Intrinsic and extrinsic
semiconductors –Properties
MAGNETIC MATERIALS 6
Definition of fundamental terms – Material – Classification –
Dia, Para, Ferro and ferri magnetic materials – Properties –
Heisenberg and Domain theory of ferromagnetism – Hysteresis –
Hard and soft magnetic materials – Ferrites – structure,
preparation and applications
PHOTONICS 6
Lasers: Applications - Computer peripherals - Fiber Optics:
Applications – Fiber optical communication – Fiber optic sensors
- Electromagnetic radiation Polarization – Production and
Detection of Plane, Circular and elliptically polarised light

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Computer Science and Engineering
SOURCES AND DETECTORS 6
Light Emitting Diode – Organic LED’s – Polymer light emitting
materials – Plasma light emitting devices – LCD’s –
Semiconductor Diode – PIN and Avalanche Photodetector.
MAGNETIC AND OPTICAL STORAGE TECHNIQUES 8
Magnetic Memories – Optical Data Storage – Phase Change
Recording – Magneto – Optical Data Storage – Hi-Tech involved
in System Development – Capacity of Storing Devices –
Holographic Storage – Construction and Reconstruction of a
Hologram – Photorefractive Storage - Bubble memory – DVD -
Blue-ray disc – Flash memory.
Total Hours : 45

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Computer Science and Engineering
TEXT BOOKS
1. Gaur R K and Gupta S L, “Engineering Physics”, Dhanpat Rai Publications, 2018.
2. Avadhanalu M N, and Kshirsagar P G, “A Textbook of Engineering Physics”, S. Chand &
Company Ltd, 2018.
REFERENCES
1. Charles Kittel, “Solid State Physics”, John Wiley and Sons, 8thEdition, 2012.
2. Raghavan V, “Materials Science and Engineering – A first Course”, PHI Private
limited, 6th Edition, 2015.
WEB REFERENCES
1. https://nptel.ac.in/courses/104104085/
2. http://nptel.ac.in/courses/122107035/
3. http://nptel.ac.in/courses/112104026/
4. http://nptel.ac.in/courses/115107095/
5. https://nptel.ac.in/courses/113105025/
6.https://nptel.ac.in/content/storage2/courses/113104005/lecture_pdf/module6.pdf

8. SEMICONDUCTING MATERIALS 4
Elemental and compound semiconductors -
Intrinsic and extrinsic semiconductors –Properties
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21. Semicondu
ctor
materials
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22. 20BS201PHYSICALSCIENCES–PHYSICS
SEMICONDUCTOR–DEFINITION
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23. 20BS201PHYSICALSCIENCES–PHYSICS
INTERMEDIATE RESISTIVITY
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24. 20BS201PHYSICALSCIENCES–PHYSICS
COMPARISON
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25. BAND GAP
20BS201PHYSICALSCIENCES–PHYSICS
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26. BANDGAP
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30. ELEMENTAL & COMPOUND
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42. P – type semiconductor (Si doped with B/ In/ Ga / Al)
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Energy Bands Diagram of Extrinsic Silicon
Energy Bands Diagram of Intrinsic Silicon

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49. Figure 3—5
Direct and indirect electron transitions in semiconductors: (a) direct transition with accompanying
photon emission; (b) indirect transition via a defect level.
Direct semiconductors are suitable for making light-emitting devices, whereas the indirect semiconductors are not.
- A semiconductor is indirect if the maximum
of the valence band and the minimum of the
conduction band do not have the same k value
- A semiconductor is direct if the
maximum of the valence band and
the minimum of the conduction
band do have the same k value
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51. 20BS201PHYSICALSCIENCES–PHYSICS
INTRINSIC and EXTRINSIC
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52. 1
2
INTRINSIC and EXTRINSIC
Theintrinsiccarrierconcentrationisthenumberofelectronsinthe
conduction band orthenumberofholesin thevalenceband i n
intrinsicmaterial.Thisnumberofcarriersdependsonthebandgapof
thematerialandonthetemperatureofthematerial.
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53. IMPURITIES
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54. 20BS201PHYSICALSCIENCES–PHYSICS
N-TYPE and P-TYPE
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57. FORMATION OF HOLE
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58. N-TYPE & P-TYPE:COMPARISON
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59. 20BS201PHYSICALSCIENCES–PHYSICS
N-TYPE & P-TYPE:COMPARISON
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