Functional Materials Lab


MSE 312 Functional Materials Lab

Following experiments are conducted in Functional Materials Lab.


Title of the experiment

Detailed contents
Objective and scope of experiment


Ionic conductivity

• Conductivity measurement as a function of temperature for different samples
Students will learn:
(i)  Ionic vs. electronic conduction
(ii) Effect of processing/microstructure


Dielectric and ferroelectric/piezoelectric materials

• Measurement of dielectric constant
• Hysteresis loop
Students will learn:
(i)  Dielectric and Ferroelectric/Piezoelectric Materials
(ii) Measurement of dielectric constants
(iii)Dependence on frequency and temperature


Optical behavior of Liquid Crystals

  • Measure response to applied field

  • Measure the transmittance

  • Measure threshold voltage

Students will learn:
(i)   Photonics: optical behaviour of materials
(ii)  Optical behaviour of liquid crystals
(iii) Working of flat panel displays


Fabrication of organic light emitting diodes

• Partial fabrication of organic polymer light emitting diodes
• Characterization of an OLED
Students will learn:
(i)   Photoluminescence and electroluminescence
(ii)  Measurement of optical power
(iii) Bandgap alignment
(iv) Importance of life time in organic devices


Magnetic materials

• Magneto resistance
• M-H curves
Students will learn:
(i)  Magnetic materials
(ii) Magnetic characterization
(iii)Magnetic memory materials


Semiconductor characterization

•Semiconductors resistivity
•Hall measurement
•Bandgap measurement
Students will learn:
(i) Carrier concentration, type and mobility
(ii) Electrical vs optical band gap


Solar cell fabrication and characterization

•Fabrication of organic photovoltaic cells (PV) cells
•Characterization of solar cells
Students will learn:
(i)  Organic semiconducting materials
(ii) Organic electronics processing
(iii)Measurement of power density and efficiency of a working solar cell
(iv) Photonics


Processing of biomaterials

Fabricate biomaterials using
(i)compression molding (for entire component), and
(ii) electrostatic spraying (for coatings)
Students will learn:
(i) Processing of structural bulk components of biomaterials
(ii)Deposition of biomaterial coatings


Tribology of bio-coatings

      • Tribology of two samples: (i) polymer with modifier
(ii) polymer without modifier for comparison purpose.
• Comparison with metallic substrates (demo). Students will learn:
(i) Role of hard abrasive coating on the wear resistance
(ii) Coefficient of friction between surfaces
a) Metal and polymer
b) Ceramic-polymer
(iii) Wear damage in terms of the Penetration depth (in situ)


Biomimetics/ Surface modification

Effect of surface energy on wetting of surfaces
•Samples prepared by the students measuring the contact angle.
•Role of surface roughness/ chemistry on affecting the wettability of surface.
Students will learn:

  • The role of surface energy on wetting

  • To render various degree of surface roughness

  •  Role of surface chemistry and roughness on wettability


Effect of surface modification on Bacteria/ Cell growth

Effect of surface modification/functionalization
characterized by comparing cell growth/proliferation
on treated versus pristine surfaces.
• One or more of the following will be performed by
students to learn cell response:

  • Role of surface chemistry (hydrophobic/ hydrophilic and hydrophobic/ hydrophilic + modifier)

  • Role of surface roughness

Cell-proliferation/growth will be demonstrated on the samples prepared by students.
Students will learn:

  • Effect of surface modification on cell viability

  •  Role of surface roughness on cell viability