Done by Group: ABW_Photons7 School: Amna Bint Wahb Independent School for Girls Dye-Sensitized Solar Cells (DSSC) Module: The students study the concept of using dyes to plant dyes to capture the solar energy to convert it into electrical energy simulating the natural process “photosynthesis”. They use the workshop-gained knowledge in DSSC to invent new products. There are some ideas for improving DSSC efficiency by using electrolyte (Eversolar EL-200), and other metal based dyes: copper(ll) phthalocyanine from Sigma-Aldrich, and polyaromatic dyes. Benz(b)anthracene (Purity 99.99% trace metal basis) but not found in Qatar. Also they used Nitric acid instead of acetic acid to do DSSC. Also there are two projects in which DSSCs can be applied: glucometer and Eco-friendly ACs.

1.  
Photons
Ayah Samir Awartani Maryam Al-Buainain
Farah Mutasim Hijawi Al-Dana Al-Muhannadi

2. • Introduction
• Activity 1: investigating the photosynthesis of plant disc.
• Activity 2: Separating Leaf Pigments Using Paper
Chromatography
• Activity 3: Measuring a Solar Cell’s Performance-
• Design Project
• Product Idea
Solar Glucometer
Eco-friendly ACS

3.  Dye Sensitized Solar Cell (DSSC): The use of natural dye extracts
to provide natural, non-toxic and low cost source of energy by
sunlight.
 Photosynthesis: the process by which green plants and some
other organisms use sunlight to synthesize foods from carbon
dioxide and water.
 Solar cell: a device converting solar radiation into electricity.
 Glucometer: A glucose meter is a medical device for determining
the approximate concentration of glucose in the blood.

4. Objective:
To examine out different wavelength of
different colors and it’s absorption for
light.
Conclusion:
Chlorophyll is the pigment responsible for
absorbance of the light in photosynthesis
process, so it varies depending on the
wavelength of the light.

5. 0
1
2
3
4
5
6
7
0 4 8 12 16 20 24 28 32 36 40 44 48
Effect of different light wave lengths on
photosynthesis
Blue light Red light White light

6. Objective:
To test the separation of pigments on plants
using chromatography paper with a solvent.
Materials:
Solvent petroleum ether 90ml + Acetone 10ml.
Conclusion:
Even though plants are green they have several
pigments other than chlorophyll.

7. A silicon
solar cell
Connecting
the solar cell
with wires
• Expose the
solar cell to a
source of
light
Measuring the
voltage using
a multimeter

8. Objectives:
To see how a solar cell works and generates
electricity under a source of light.
Conclusion:
Using two chemical substances as a cathode pole and
anode pole with an electrolyte that generates
electricity in the cell.
Steps:
Next

9. 2- Connect the tip
of the two wires with
a small bulb.
Activity 3
(B)
Powering
Light Bulbs
With Solar
Cells
1- Connecting the
silicon solar cell with
two wires and
expose it to a source
of light.
Conclusion

10. Bulb Voltag
e
Curren
t
Power Resistanc
e
Predicted
brightness
rank
Actual
brightness
rank
A 1.25 0.3 0.375 4.16 1 4
B 2.47 0.3 0.741 8.2 2 3
C 2.25 0.25 0.5625 9 3 2
D 1.3 0.1 0.13 13 4 1

11. Objective: learning the components of a DSSC.
Results: whenever we change the intensity of light, voltage
and current of the cell changes.
Conclusion: The DSSC converts light to electrical energy
through doing chemical reactions.
Steps:

12. Grinding the
TIO2 with
Acetic acid
Spreading the paste
along the
conductive glass
Dipping the
first slide in a
dye.
Connecting
the two slide
together.
Measuring the
voltage of the
DSSC using a
multimeter
Putting the slide
with TIO2 on a
hotter plate on
450
Conclusion
Adding TIO2
Exposing a
conductive
slide to a flame
in resulting to a
carbon

13. Objective:
• To figure out ways in order to make DSSC more efficient.
• Develop and provide essential needs to the product idea so it can be
implemented.
• To request further researches and studies to improve DSSC so it can be further
applied.
• To contribute to Qatar’s 2030 vision by preserving environment sustainability.

14. • Our product is called “Solar Glucometer”, a Solar Glucometer
is a device that is used to helps a diabetic determine their
glucose blood level, measure and keep on track diabetes
patients by storing their blood data.
• . A person with diabetes simply uses a small lancet to poke a
finger to draw a small amount of blood.
• It uses Dye-sensitized solar cells to produce and store electric
energy that can be used regularly.

15.  Why we chose this product:
o Currently 16% of the population in Qatar is diabetic. We chose this product to
contribute to the medical spectrum, and to provide a healthier, more suitable and
comfortable device for those who have diabetes. And because we want to reduce the
materials wasted of the regular devices .
o The requirement of this device isn’t unmanageable, It needs only 3 volts, by
connecting DSSCs with 150MV in series it raises the voltage, and the same number of
DSSC in parallel to raise the current.
o Through this product, we will reduce the amount of wastage resulted by the regular
device. And by implementing this idea, we will preserve our precious environment and
be one step closer to achieve Qatar’s vision.

16. We did several procedures to advance the product idea by
Increasing the DSSC efficiency through:
• Using solid conductors like mineral salt.
• Using dyes:
 Trying more metal based dyes.
 Trying polyaromatic dyes.
• Using compressors.
• Using an amplifier.
Compressor
s
Amplifier

17.  After a long time of research we found out a great
number of dyes and electrolyte to improve the DSSC
,but unfortunately they weren’t available in Qatar.
(example: Marigold and Eversolar EL-200)

18.  Benefits of the product:
 Reduce the amount of slides wasted and the wastage of electricity.
 Easy to handle, manufacture and maintain.
 Preserve the environment.
 Stores and keep on update with the patients blood data.
 It gives the patient an immediate result. A diabetic can then make immediate
decisions on their insulin, diet and exercise in order to control their diabetes.

19.  We want to develop, research and provide essential
needs to the product idea; so it can be implemented in
the future.
 We always want to improve and expand our product.

20.  Throughout this competition ,we had the chance to
experiment several times, calculate and observe. To find
imperfection and try to resolve.
 This is most likely not our last idea!

21. Objective:
 To use ACS that work on DSSC to be more environmental friendly.
 To develop and advance the product idea.
 Implement and start using Eco-friendly AC’S.
 To contribute to Qatar’s 2030 vision by preserving environment
sustainability.

22.  One of the reasons we chose this project is to preserve our precious
environment, and because Qatar uses a wide range of air conditions it will
be more beneficial to our habitat.
 Our product uses Dye-sensitized solar cells to produce and store electric
energy that can be used on daily basis.

23. When we first researched we found out that using mineral salts as a
solid conductor was a great challenge to face.
“Why is solid table salt is a poor conductor while salt water is a
good conductor of electricity?”
Explanation:
 Because the molecules in the solid table salt are packed together
which leads to little space for the electricity to flow through, but if it is
liquid, then the molecules will be flowing around and spaced giving
room for electricity to flow freely.

24. o Progress and provide essential requirements to the product idea so it
can be applied.
o Raise the percentage of eco-friendly ac’s in Qatar by 60%.

25.  We would like to express our very great appreciation to AL-Bairaq for giving
us a chance to show our effort.
 We wish to acknowledge our school Amna Bint Wahb for providing all the
assistance we need and motivating us.
 We would like to express our very great appreciation to Dr. Hala, Eng. Amira
and Ms. Ruqaya for their valuable and constructive suggestions during the
planning and development of this research work. Their willingness to give
their time so generously has been very much appreciated.
 We would also like to extend our thanks to the sponsors and partners.
 Finally we wish to thank our country Qatar for giving the youths a chance.