This presentation discusses transparent solar cells and their potential as the future of electricity. It is introduced by Sarah Cynthia Gomes from the Department of Computer Science and Engineering at International Standard University. The presentation is given by the student group "Dynamic Squad", consisting of 4 members. The introduction explains that transparent solar cells allow sunlight to pass through while still converting it to power, unlike conventional solar panels which absorb sunlight. The presentation will cover the working mechanisms of solar cells, materials used in solar cells such as silicon and perovskites, recent advancements including flexible perovskite cells, how transparent solar cells work, their efficiency, challenges, and conclusions on their potential.

1. Welcome To Our
Presentation On
“Transparent Solar Cells: Future of Electricity”

2. Supervised By
Sarah Cynthia Gomes
Lecturer
Dept. Of Computer Science & Engineering
International Standard University

3. Group:
"Dynamic Squad"

4. Group Member:
Md. Zahidul Islam
ID: 201030032
Israt Jahan Mysha
ID: 201030009
Muhammad Akib Jabed
ID: 201030035
Md. Riazul Islam
ID: 201030015

5. Introduction
• A transparent solar panel is
essentially a counterintuitive idea
because solar cells must absorb
sunlight (photons) and convert them
into power (electrons). When a solar
glass is transparent, the sunlight will
pass through the medium and defeat
the purpose of utilizing
sunlight. Conventional solar panels,
more specifically solar photovoltaic
panels, absorb sunlight and convert
photons (particles of sunlight) into
usable energy.

6. Working Mechanism of
Solar Cells:
When sunlight falls on a solar panel this plate
absorbs it and this light reaches the pn
junction. This sunlight photon can then easily
enter the junction through a very thin P-type
layer. Semiconductor materials are used to
attach the properties of insulators and metals
to each panel of the solar panel. Solar energy
provides enough energy to the junction to
form many electron-hole pairs in the form of
photons. This causes the light to break the
thermal equilibrium state of the junction. The
free electrons in the depletion field can
quickly reach the N-type side of the junction

7. Materials Used in Solar
Cell:
Solar cells are typically named after
the semiconducting material they are
made of. These materials must have
certain characteristics in order to
absorb sunlight. Some cells are
designed to handle sunlight that
reaches the Earth's surface, while
others are optimized for use in space.
Solar cells can be made of only one
single layer of light-absorbing
material (single-junction) or use
multiple physical configurations
(multi-junction) to take advantage of
various absorption and charge
separation mechanisms.

8. Silicon - The Most
Popular Material for
Solar Cells
Polycrystalline Thin
Films - Reducing
Material Required in
Solar Cells
Copper
Indium Diselenide
Cadmium Telluride Gallium Arsenide

9. PEROVSKITE
MATERIALS
QUANTUM DOTS ORGANIC/POLYMER
MATERIALS
DYE-SENSITIZED
MATERIALS

10. Recent advancements in
Solar Cells:
• The photovoltaics (PV) industry
is booming, with annual growth rates
well in excess of 30% per year over the
last decade.
• Today’s mainstream PV technology
(market share of about 90%) is based on
crystalline silicon wafers. As outlined in
this special issue, despite their maturity,
silicon wafer-based PV technologies still
have enormous potential with respect to
lowering the C/Wp costs of
PV modules.

11. Recent advancements in
Solar Cells:
Flexible perovskite solar cells have
attracted significant attention owing to
their promising potential in practical
applications. This Review discusses the
prerequisite conditions for flexible
perovskite solar cells, provides an outlook
of flexible perovskite devices in portable
electronic products, and estimates their
production cost by roll-to-roll vacuum
deposition for commercialization.

12. Transparent Solar
Cells:
Photovoltaic glass is probably the most cutting-
edge new solar panel technology that promises to
be a game-changer in expanding the scope of
solar.
These are transparent solar panels that can
literally generate electricity from windows—in
offices, homes, car’s sunroof, or even
smartphones. Blinds are another part of a
building’s window that can generate electricity
(we will discuss it in a later section).
unroof, or even smartphones. Blinds are another
part of a building’s window that can generate
electricity (we will discuss it in a later section).

13. How it works:
A transparent solar panel is essentially a
counterintuitive idea because solar cells
must absorb sunlight (photons) and
convert them into power (electrons).
When a solar glass is transparent, the
sunlight will pass through the medium and
defeat the purpose of utilizing sunlight.
However, this new solar panel technology
is changing the way solar cells absorb
light.

14. Efficiency:
Solar cell efficiency refers to the portion of
energy in the form of sunlight that can be
converted via photovoltaics into electricity by
the solar cell. The efficiency of the solar cells
used in a photovoltaic system, in combination
with latitude and climate, determines the annual
energy output of the system. For example, a
solar panel with 20% efficiency and an area of
1 m2 will produce 200 kWh/yr at Standard Test
Conditions if exposed to the Standard Test
Condition solar irradiance value of 1000 W/m2
for 2.74 hours a day. Usually solar panels are
exposed to sunlight for longer than this in a
given day, but the solar irradiance is less than
1000 W/m2 for most of the day.

15. Challenges/ Disadvantages of transparent solar cells:
Cost
Weather-Dependent
Solar Energy Storage Is Expensive
Uses a Lot of Space
Associated with Pollution

16. Conclusion:
Better access to renewable energy sources has become a major concern for developing
countries in recent times. Solar energy has been at the forefront of nations' efforts to
develop new technologies, and scientists are continuously looking for new methods to
develop efficient energy-generating systems. Graphene, a one-atom-thick sheet of carbon, is
a relatively new material that has received attention for its efficient capabilities.

17. Any Question?