conducting polymer.pptx

7/29/2019 Conducting Polymer.pptx

1/30

Energy RelatedApplications ofConducting Polymers

Presented By-Mohammad Rameez


2/30


3/30

FUTURE OUTLOOK


4/30

WHY CONDUCTING POLYMER? architectural flexibility

(e.g. nanotubes,

nanofibres, nano-

particles, core-shell

nanomaterials,..)

versatile properties

tunable surface

functionalities

ease of processing and

fabrication inexpensiveness

plastic metals Polymer Science: Emissive Materials Nanomaterials (199), Springer-Verlag BerlinHeidelberg, Heidelberg (Germany), 199-207 (2006)


5/30

AREA OF APPLICATIONS


6/30

APPLICATIONS OF CONDUCTING

POLYMERS:


7/30

Rechargeable Batteries

Higher energy and power densities (light weight) thanconventional ones using lead-acid or Ni-Cd

e.g. polyaniline used in 3V coin-shaped batteries

(Poly. Adv. Tech. 1990, 1, 33) Rechargeable -> reversible doping

APPLICATIONS OF CONDUCTING POLYMERSIN ENERGY STORAGE


8/30

Li-ion Batteries


9/30

Polymeric Battery

APPLICATIONS OF CONDUCTING

POLYMER


10/30


11/30


12/30

ORGANIC SOLAR CELLS


13/30

Dye Sensitized Solar Cells

Solar cells are energy conversion devices that convert sunlight to electric energy. Conducting polymers have unique properties of light absorbance and hole

transporting

when combined with metal oxide, which may contribute to the improvement of the

photovoltaic efficiencies


14/30


15/30


16/30

Fuel Cells Fuel cells convert the chemical energy directly into electricity by electrochemical

reactions.

high energy conversion efficiency, fuel portability and environment The effects of an electrocatalyst on the performance of DMFCs have been

extensively studied

conducting polymers with 1D-nanostructures have become good candidates as

electrocatalyst supports


17/30


18/30


19/30

ENZYMATIC BIOFUEL CELLS

The enzymatic biofuel cells use enzymes obtained from living cells.However,

The primary requirement is that the enzymes which allow the fuel cell tooperate must be stably immobilized as the anode and cathode.

The enzymes [glucose oxidase (GOx) or horseradish peroxidase (HRP)]

were immobilized onto the conducting polymer layer through covalentbond formation, which allowed the direct electron transfer processes ofthe enzymes. The anode with immobilized GOx and the cathode withimmobilized HRP were used as model enzyme systems in biofuel cells .

Resulted in approximately a seven fold increase in the power density ofthe biofuel cell

Moreover, the conjugated polymers extended the lifetime of biofuel cell

to 4 months through the stabilization of immobilized enzymes. The biofuel cell operated in a solution containing glucose and anode -

produced H2O2 generated an open-circuit voltage of approximately 366.0mV, while the maximum electrical power density extracted from the cellwas 5.12 W cm 2 at an external optimal load of 25.0 k .


20/30


21/30


22/30

LED Display

Light emission resulted from therecombination of holes and electrons in asemiconductor


23/30

First reported in 1990 (Nature 1990, 347, 539)

Based on poly(p-phenylenevinylene) (PPV), with a bandgap of

2.2 eV

ORGANIC LIGHT EMITTING POLYMER

ITO: Indium-tin-oxide-A transparent electricalconductor


24/30

A Two-Layer Photovoltaic Devices Conversion of photos into electrons

Solar cells (Science1995,270, 1789;Appl. Phys. Lett. 1996, 68, 3120)

(Appl. Phys. Lett. 1996, 68, 3120)

Max. quantum efficiency: ~ 9 %Open circuit voltage Voc: 0.8 V

490 nm


25/30

A Photodiode fabricated from polymer blend(Nature 1995, 376, 498)

Device illuminated at 550 nm (0.15 mW/cm2)

Open circuit voltage (Voc): 0.6 VQuantum yield: 0.04 %


26/30

Field Effect Transistors (FET)

Using poly(3-hexylthiophene) as the activelayer

All Plastics integrated circuits(App l . Ph y s . L e t t . 1996, 69, 4108; recent review: Ad v . Ma te r.1998, 10, 365)


27/30

ELECTROSTATIC MATERIALS AND

MOLECULAR ELECTRONICS

A polymer LithiumSheet Battery

A Molecular Switch to be used inMolecular Electronics


28/30

Photographic Film

smart" windows

Shield for computer screen

against electromagnetic

"smart" windows

radiation

Light-emitting diodes

Solar cell


29/30

Electrical conduction

Anti-static

ESD

EMI shielding

Electrical field protection

Cable shielding

Radar shielding

Chemical potential protection

Anti-corrosion

Charge storage

Capacitor

Rechargeable battery

Semiconductor

Lithography

Via-hole electroplating

Sensors

Chemical sensor

Bio-sensor

Electronic devices

Smart window

Solar cell

Light emitting diode

Electrochromic display

Field effect transistor

NLO

Miscellaneous application

Gas separation membrane

Plastic welding

Conductive adhesive

Conductive gasket

Important Potential Applications of Conducting Polymers


30/30

ThankYou!

conducting polymer.pptx

Documents