List of Experiments / Activities
- 1Unit I — Electrical Conductivity of Electrolyte Solutions — Measure electrical conductivity of electrolyte solutions (NaCl, KCl, H2SO4) at varying concentrations using conductivity meter; determine limiting molar conductivity; relate to ionic conduction in electrolytes
- 2Unit I — Band Gap of Semiconductor by Conductivity Method — Measure electrical resistance of a semiconductor sample (Ge) at different temperatures; plot ln(R) vs 1/T; determine band gap energy; relate to semiconductor device material selection
- 3Unit II — EMF of Electrochemical Cell and Nernst Equation — Measure EMF of Daniell cell at varying ion concentrations; verify Nernst equation; relate to battery cell voltage and electrochemical energy device design
- 4Unit II — Charge-Discharge Characteristics of Supercapacitor — Study charge and discharge curves of a supercapacitor; measure capacitance, energy density, and power density; compare with Li-ion battery; relate to energy storage in electronic devices
- 5Unit II — Electrodeposition of Thin Metal Film — Electrodeposit a thin copper or nickel film on a substrate; measure film thickness using gravimetric method; calculate current efficiency; relate to thin film technology in electronic device fabrication
- 6Unit III — Dielectric Constant of Insulating Material — Measure dielectric constant (permittivity) of a polymer film or ceramic material using LCR meter at varying frequencies; study frequency dependence; relate to capacitor dielectric selection
- 7Unit III — Magnetic Properties – B-H Curve (Demonstration) — Observe B-H hysteresis loop for soft and hard magnetic materials; determine retentivity, coercivity, and saturation magnetisation; relate to ferrite core materials in inductors and transformers
- 8Unit IV — Synthesis of Silver Nanoparticles by Chemical Reduction — Synthesise silver nanoparticles by reduction of AgNO3 with sodium borohydride; confirm formation by UV-Vis spectroscopy (plasmon peak ~420 nm); study size-dependent colour change
- 9Unit IV — Thin Film Deposition by Spin Coating — Prepare a thin polymer or sol-gel film on a glass substrate by spin coating; measure film thickness by Newton's rings method; relate to spin-coated films in OLEDs and photovoltaic devices
- 10Unit V — Electrical Conductivity of Conducting — Synthesise polyaniline by chemical oxidative polymerisation; measure its electrical conductivity using four-probe Polymer (Polyaniline) method at different doping levels; relate to organic electronics applications
- 11Unit V — Solar Cell – I-V and P-V Characteristics — Plot I-V and P-V curves of a solar cell; measure Voc, Isc, fill factor, and efficiency under different illumination levels; relate to photovoltaic chemistry and organic solar cells
- 12Unit IV — UV-Vis Spectroscopy of Quantum Dots / Dye Solution — Record UV-Vis absorption spectrum of a quantum dot solution or dye (methylene blue); study Beer-Lambert law; relate to optical properties of quantum dots in display and imaging applications
Course Objectives
- To study the electrical properties of conducting, semiconducting, and insulating materials
- To characterise electrochemical energy storage devices used in electronics
- To study properties of dielectric and magnetic materials relevant to electronic devices
- To synthesise and characterise nanomaterials and thin films for electronic applications
- To explore properties of organic and polymer-based electronic materials
Course Outcomes (COs)
After completion of the course student will be able to:
- CO1Measure electrical conductivity of solutions and determine semiconductor band gapK3
- CO2Characterise electrochemical cells, supercapacitors, and electrodeposited thin filmsK3
- CO3Measure dielectric constant and observe magnetic hysteresis of electronic materialsK3
- CO4Synthesise silver nanoparticles and characterise thin films by UV-Vis and optical methodsK3
- CO5Measure conductivity of conducting polymers and characterise solar cell I-V behaviourK3
Suggested Textbooks / Reference Books
- Engineering Chemistry – Jain and Jain
- Electronic Properties of Materials – Rolf E. Hummel
- Nanomaterials: An Introduction to Synthesis, Properties and Applications – Vollath Safety and General Instructions
- Students must wear lab coat and safety goggles at all times in the chemistry laboratory
- Handle all acids, alkalis, and oxidising agents with extreme care; use fume hood for volatile chemicals
- Dispose of chemical waste in designated containers as per lab safety guidelines
- Do not pipette by mouth; use rubber bulb or mechanical pipette fillers
- Wash hands thoroughly after every experiment; report any spillage or accident immediately
Official AKTU syllabus
This subject is on page 61, 62, 63, 64, 65, 66 of the original AKTU PDF.