This document discusses solution processed PV solar cells. It describes how solution processing involves applying a thin-film coating using a printing press-like system. The goals are to make electrical devices that are small, cheap, durable, stable, and thin. Various techniques can be used to deposit solutions, including spin coating, spraying, doctor blading, dip coating, and inkjet printing. Solution processing allows fabrication of solar cells with low-cost materials at low temperatures. It reduces material usage and allows layer-by-layer manufacturing of flexible, high-performance solar cells. The technique is applicable not just for solar cells but also for displays, transistors, sensors and more. Improving stability remains a key challenge.

1. SOLUTION PROCESSED
BASED PV SOLAR CELLS
MD MEHEDI HASAN
DALHOUSIE UNIVERSITY

2. SOLUTION PROCESSED
• The technology involves applying a deposition
process and thin-film coating process using a
manufacturing system that is similar to a
printing press

3. GOAL OF SOLUTION PROCESS TECHNIQUE
• Make electrical or optical devices that are small and cheap.
• Make materials more durable and stable
• Make devices that consists of thin layer
• Deposit thin layer to get desired properties
• Finally, desired to apply in roll to roll process

4. HOW TO MAKE SOLUTIONS
Used for conjugated polymers and soluble materials
Dissolve thin film materials in a solvent
After all, Nanomaterials solution looks like dye

5. SOLUTIONS DEPOSITION TECHNIQUE
THERE ARE DIFFERENT TECHNIQUE FOR DEPOSITION OF SOLUTION TO MAKE PV CELLS
1. Spin coating
2. Chemical bath
3. Spray coating
4. Doctor blade
5. Dip coating
6. Metering rod
7. Slot casting
8. Screen printing
9. Inkjet printing
10.Aerosol Jet

6. SOLUTION DEPOSITION BY SPIN COATING METHOD

7. ARCHITECTURE OF COMPLETE PV DEVICE

8. WHY SOLUTIONS PROCESS FOR PV CELLS
• The lower expensive of chemical materials, so called cost effective
• At lower temperature, below 400 °C
• The technology always cheaper than conventional c-Si based technology
• Thickness varies from few nm to micrometer
• Reduce the amount of active materials
• Layer by layer process to easily fabricate solar cells
• The thin layer are bendable
• High performance
Solution processing makes good solar cell

9. SOLUTION PROCESS FOR OTHER
APPLICATIONS
• OLED/LED display
• Thin film solar cell
• LCD monitor
• Transistors, diodes
• Sensors
And so on…….

10. FUTURE CHALLENGES OF SOLUTION BASED PV CELLS
• Increasing air and temperature stability

11. THANKS FOR ATTENTION