Interesting Information about Perovskite Solar Cells

Why are perovskite solar cells unique?

Researchers in Japan first used perovskite for solar cells in 2009. The manufacturing process is also relatively straightforward. The cells can operate at lower light intensities. In addition, the material is relatively cheap and readily available. The solar cells can also be transparent, colored, and mounted on a flexible substrate. Thus, its easy manufacturing process makes perovskite solar cells unique. 

Do these cells hold any truth, or will it soon be reality?

Solar cells made of perovskite have long had stability issues, so the PV industry was skeptical of this newcomer. Nevertheless, there has been considerable progress. In addition, the first perovskite solar cells are forecast to break through within the next few years. According to the European Perovskite Initiative (EPKI) White Paper, between 0.04 and 1.3 Gwp is forecast to be produced in that timeframe. The world’s leading companies are expanding their production capacities in response to this new technology. In addition, Europe and China are forecast to play a leading role in its implementation.

Types of Perovskite solar cells:

Perovskite solar cells are available in two types. A tandem solar cell consists of a silicon cell with a layer of perovskite on top. In terms of conversion efficiency, perovskite silicon solar cells are now near the limit. In addition, that additional layer of perovskites on top of it can provide a notable boost in efficiency without drastically altering the process. Most solar cell parks will use this type of cell. For solar cells in areas with less sunny light conditions-where clouds and light intensity varies more regularly-bifacial silicon solar cells use a perovskite layer on top. As a result, people can also capture reflected light from the ground.

Other applications will use pure thin-film perovskite cells, such as cars, building materials, windows, and clothing. Likely, this type of perovskite-based cell will not be available on the market right away. Due to the need for a completely new integration process and business model.

Where will these cells be produced?

Integrated applications such as vehicles and buildings use perovskites in cells. In addition, it has the best chances of being produced locally due to country-specific regulations and organizations. As an expert in perovskite materials and cells, Europe will potentially become a leading region.

Purchasing cheaper silicon cells from other countries is possible for nations with expensive manufacturing costs for silicon-perovskite tandem solar cells. They can also apply a perovskite finish to it locally.

How much cheaper are perovskite solar cells?

The silicon-perovskite tandem cells require more process steps and materials than standard silicon cells. In addition, it makes them more expensive. In contrast, the gain in efficiency will compensate for these extra costs considerably, resulting in a lower cost/watt peak. There is no doubt that tandem modules will overtake current cheap silicon modules.

Perovskite thin-film cells can be very cheap. There are many factors that affect the final price, including the material used, the stack design, the type of processing used, and the application and market size. 

Are perovskite solar cells prone to toxicity caused by lead?

Several factors make perovskite technology eco-friendly. 

PV technology is available due to several factors-

  • The use of synthetic-made materials
  • The minimal amount of material needed
  • The low process temperature.

The quantity of lead present in the cell is low. A perovskite cell typically contains layers of lead 0.3 m thick. In addition, it equates to 1g of lead iodide per m2. Therefore, perovskite solar cells are not prone to damage the environment.

Do these cells have a future?

Astute Analytica report on the global perovskite solar cell market, the global market is forecast to grow at a CAGR of 28.7% during the forecast period from 2022-2030. Increasing application of perovskite solar cells across numerous industries and technological advancements are driving the market growth.

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