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Tech

The Most Efficient Solar Cells in 2019

by Petar Senjo February 27, 2019
by Petar Senjo February 27, 2019 Source: sintef.no
2.2K

Solar power increases its generation capacity every year because mankind needs to reduce the use of fossil fuels to decrease the level of air, soil and water pollution on the planet. Today, the largest solar parks in the world are located in Asia (China and India), mostly because the Trump administration is trying to revive the coal sector in the U.S. instead of investing in solar and wind power.

However, in many U.S. states (California, Nevada, etc.) many homeowners have decided that a solar power system is the best choice to reduce their energy bills and their carbon footprint. Solar energy has many advantages today, but also a few drawbacks generated by its high price and the low efficiency of the panels. Scientists are working hard today to increase the efficiency of the solar cells because only a highly efficient solar panel can reduce the area covered by solar modules on your rooftop, and also the energy output of your PV system.

We need highly efficient solar panels to deal with the decreased level of sunlight during the winter and the rainy days, which makes the current solar PV systems to generate only a small amount of energy, especially when we need it the most.

Top Most Efficient Solar Panels in 2019

Img source: fool.com

AEN News recently reported that the most efficient solar panels in 2019 are using solar cells made of silicon, thin film or organic materials with photovoltaic properties.

10. DYE Sensitized Solar Cells

On number 10th, we have a low-cost thin-film solar cell that uses a semiconductor material formed between a photo-sensitized anode and an electrolyte to create a photoelectrochemical system.
This type of solar cell has an efficiency of only 11.90%, but among its features, we can mention the possibility to produce the cell using conventional roll-printing techniques and the fact that the materials used to produce the cell are semi-flexible, semi-transparent and also pretty affordable.

9. Organic Solar Cells

With an efficiency of 15.60%, this type of solar cells is using organic (cheap) materials to produce electricity due to the photovoltaic effect. And here are ten of them:

Organic photovoltaic cells (OPV) are considered today a good solution to generate clean electricity at lower costs.

8. Cadmium Telluride (CdTe) Solar Cells

Img source: arstechnica.com



With an increased efficiency of 22.10%, CdTe solar cells are using a stable crystalline compound (a semiconductor material) produced from cadmium and tellurium.
The CdTe solar cell is produced creating a sandwich between the semiconductor material (CdTe), a layer of cadmium sulfide (CdS), and a layer of transparent conductive oxide (TCO), all covered by glass, and by a layer of aluminum located at the back of the cell.

7. Polycrystalline Solar Cells

The best polycrystalline solar cells available on the market today have an efficiency of 22.30% and a lower price compared to the monocrystalline solar cells.
Polycrystalline solar cells are cheaper since they are made from melted pieces of silicon instead of a single ingot of silicon with high purity.

6. Copper Indium Gallium Selenide Solar Cells

CIGs are thin-film solar cells that are converting the sunlight into clean electricity.
They are made by depositing a thin layer of copper, indium, gallium, and selenium on plastic or glass backing.
The material used to manufacture these types of solar cells has a high absorption coefficient, which means that it needs to be a much thinner film compared to other semiconductor materials.
The most efficient CIGs solar cells on the market today have an efficiency of 22.90%.

5. Perovskite Solar Cells

Img source: fool.com



Perovskites are known as being a special class of materials with amazing features like superconductivity, magnetoresistance and many others.
Perovskites are cheaper than silicon and they are considered the future of solar cells because they can provide a high-efficiency of the panels at low-costs.
Perovskite solar cells (PSCs) provide an efficiency of about 23.70%.

4. Monocrystalline Solar Cells

Monocrystalline solar cells are made from a single ingot of silicon (high purity) to provide a superior efficiency of the panels.
The best monocrystalline solar cells on the market today can reach an efficiency of about 26.10%.

3. Gallium Arsenide Solar Cells

GaAs solar cells can harness more sunlight than silicon-based solar cells because they are made using a soft and silvery metal, which can also be found in electronic circuits, semiconductor materials, and light-emitting diodes.
Gallium Arsenide solar cells can reach a top efficiency of 27.80&.
However, this technology is some of the most expensive solar tech available today on the market.

2. Tandem Perovskite Solar Cells

Img source: news.virginia.edu



Tandem configurations consist of two or more cells such as perovskite, silicon, thin films, and even organic solar cells that work together to absorb the entire range of the sunlight available.
Working together, tandem perovskite solar cells can reach an efficiency of 28%.

1. Multi-Junction Solar Cells

Multi-Junction (MJ) configurations consist of solar cells with multiple p–n junctions that are produced from different types of semiconductor materials.
Using a wide range of semiconductor materials the cells can absorb a broader range of wavelengths of light, which means that Multi-Junction solar cells can reach an efficiency around 40%, which is the highest available today.
Solar technology is quite expensive today, especially if we talk about the latest solar cells and solar modules with improved efficiency.
However, the price of solar will keep going down, while the efficiency of the panels will keep increasing.

2019efficiencysolar cellssolar energysolar panelssun
Petar Senjo

A creative writer with a keen eye for SEO. Combining his love for the latest news with his expertise in search engine optimization, Petar delivers impactful content that resonates with readers.

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