Done By: Arwa_Black7 School Name: Arwa Bint Abdul Motaleb Secondary Independent School for Girls Dye-Sensitized Solar Cell (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. Our project idea is about using of basil pigment in lighting tents in the desert using Dye-sensitized solar cell.

1. AL-Bairaq
I am discovering materials
Dye-sensitized solar cell
Lighting tents in the desert using
DSSC
Arwa Sec. School
Arwa_black
Manar Alkuwari Noora Almana Najla Abdulla Alankaa
Abdulaziz

2. Outline
Introduction
Activity 1:Investigating
photosynthesis of plant disks .
Activity 2:Separating leaf
pigment using paper
chromatography .
Activity 3: Measuring a solar
cells .
Activity 4: Making a Dye-
sensitized solar
Design Project
Product Idea

3. Photosynthesis
process by plant
where carbon
dioxide reacts with
water during
presence of
sunlight to produce
oxygen and
glucose

4. Activity 1 : investigating photosynthesis
of plant disks .
- Watching for oxygen production
- Measure the time of the rise of each disk to investigate various
factors that affect the rate of photosynthesis .

5. steps
Cut 30
leaf disks
Infiltrate the
disks with the
sodium
bicarbonate
push the
syringe small
amount and
pull it 30 times
Disks rising
under light
1 2
3 4

7. Conclusion: disks have a
different number of rising in
a different time , under
different color of light , in
the white light the disks
raised fast in short time .

8. Activity 2: Separating leaf pigment
using paper chromatography.
- Paper
chromatography
carrying dissolved
substances
- The dissolved
substances are plant
pigments
- The pigments are
carried at different
rates

9. Name of
the
pigment
Actual
ranking of
distance
traveled
Predicted
ranking of
distance
traveled
Distance
traveled
(cm)
Pigment
color
Carotene119.3orange
Xanthophy
lls
228.1Yellow
Chlorophyl
ls (a)
345.5Bright
green
Chlorophyl
ls (b)
433.5Yellow
green
Conclusion: the leaf contain a lot of pigments , the Dyes plant
have a different levels of separation -or disintegration- , the
separation depends on the strength and weakness of Association
(Bolarte bond) between dye molecules
Result

10. Activity 3 : measuring a solar cell
Part A:
- Measure the internal
resistance of the
commercial silicon solar
cells .
Part B:
- Try to power several
different light bulbs with a
solar cell .
- In order to find the optimum
condition for maximum
power output .

11. Results (part A)
1.63 voltv
100 mAI
(R=V/I)
16.3 ohm
R
Conclusion:
The internal
resistance of
the silicon solar
cells , R = 16.3 .

12. Half of the
cell
Hole cellMeasure
0.8151.63V
Comparing between the hole resistance of the silicon solar
cell and the half resistance of the silicon solar cell .

13. Results (part B)
Actual
Predicte
d
PowerRIVCode
310.7418.230.32.4714
220.562590.252.25222
130.13130.11.3131
Conclusion: found the maximum brightness from 131
bulb .

14. Activity 4: making a Dye-sensitized
solar cell
- Build a solar cell by using a common chemicals and
food-based dyes .
- Observe how solar cells covert daily light to output
current .
TiO2

15. Part A
1
We shake the
titanium
dioxide
2
We cover the slide
with nano titanium
dioxide
3
We put the
slide in the
hot plane

16. Part B
4
We dip the
slid in the
pigment
We
let
the
slide
to
dry
we
burne
d
anoth
er
slide
we connect the slide with
the AVO meter and put it
under the light to see the
results
Conclusion:
Prove the
effectiveness of
plant dyes instead
of silicone , know
how the cells
converted solar
energy into electric
.
V = 0.19
volt

17. Product
our product is about replacing
the silicon in the solar cells to
pigment of plants because the
pigments are common and
can found it easily also they
are environment friend on the
other hand the silicon it
expensive and it effect the
environment .We use basil pigment in our
product

18. Product idea
Lighting tents in the desert using Dye-
sensitized solar cell with basil pigment
.

19. We cover the slides
with nano titanium
dioxide
We put the
slides in the hot
plane
We add ethanol to the basil then
grind it to make it pigment and use it
.

20. We dip the
slides in the
pigment
We let the
slides to dry
we burned
another
slides
we connect the slides with
the AVO meter and put it
under the light to see the
results

21. Hypothesis
we suppose from our project
So many things such as
1-Basil will work as a good
material.
2-We can replace the materials
with natural thing and take
advantage of them.
3-We will use the available
plants properly.
4-A plant can be a source of
energy, not only in the
process of photosynthesis.

22. Results
4 DSSC1 DSSCMeasure
0.2 x 4 = 0.8
volt
0.2 voltV
0.6 mA0.6 mAI
1.3 ohm0.3 ohmR
0.48 watt0.12 wattPower
Conclusion : (V = 0.8 * 4 = 3.2 ) >> 8 DSSC with
basil pigment is enough to light one bulb .

23. Recommendations
- We wish we could try more then 4 slide .
- We wish we could try the Dye-sensitized solar
cell out side the lap .
- We wish we could see applications of solar cell
.

24. Conclusion
In the end we have enjoyed and
benefited from the project AL-
Bairaq especially the
information we learned about
the plant and how to take
advantage of it as we have
learned more about the solar
cells, and we hope that we
can apply in our project in our
real life and see our project
results.

25. Acknowledgment
We are grateful for all people who helped us :
Al-Bairaq team Eng.Doaa , Eng.Marwa and our school
.
Also, I would like to thank the sponsors UNESCO,
Ras Gas, Shell and Qatar Petroleum.