Process of increasing solar cell efficiency- what's it like?

[Fizicks1]

I've recently gained an interest in solar cells and it's development. I know the basic working principle of solar cells, but other than that I'm quite clueless about the field.

I was wondering, what is the process of increasing solar cell efficiency like? Are there analytical ways of improving solar cell efficiencies? Or do researchers experiment with different material, structures, and designs through trial and error?

Any input is greatly appreciated!

Thanks.

 

[Ryan_m_b]

I can't answer your exact question but it's worth noting that solar panels are already quite efficient and increasing their efficiency isn't a barrier to their adoption.

EDIT: link fixed

 

[Bobbywhy]

Fizicks1, You may see an excellent graph of Photovoltaic Cell efficiency advances over the years at:
http://en.wikipedia.org/wiki/Solar_celland a good basic tutorial on the things scientists can do to increase it:
http://www.eere.energy.gov/basics/renewable_energy/pv_cell_conversion_efficiency.html

 

[etudiant]

As you examine solar cell efficiency, do keep in mind that there is only about 1.4kw/m**2 of solar energy available at the Earth's surface at most.
The average amount is much less, because of the day/night cycle and clouds.
Only that residual, maybe 500w/m**2 on average, is available to generate power in solar cells.
Currently available solar cells are 10-20% efficient, so maybe a 100w/m**2 cell output on average if power storage is available.
Cutting cost of the cells or developing effective power storage are probably the areas of most intensive research currently, even more so than improving cell efficiency.

 

[alphy]

As a scientist in the field of solar cell research, I can tell you that the process of increasing solar cell efficiency is a complex and ongoing endeavor. There are several approaches that researchers take to improve solar cell efficiency, and it often involves a combination of analytical methods and experimentation.

One of the main ways to increase efficiency is by improving the materials used in solar cells. This includes finding new materials that can absorb a wider range of wavelengths of light, as well as improving the efficiency of existing materials such as silicon. Researchers also work on developing new methods for depositing and processing these materials to optimize their performance in solar cells.

Another important aspect of increasing efficiency is through the design and structure of solar cells. This involves finding ways to reduce energy losses and improve light trapping within the cell. This can include using new architectures, such as multi-junction cells, and incorporating advanced optical coatings and layers.

Analytical methods, such as computer simulations and modeling, are also crucial in understanding the physics and performance of solar cells. This allows researchers to identify areas for improvement and guide their experimentation and design efforts.

Overall, the process of increasing solar cell efficiency is a multidisciplinary effort that involves a combination of theoretical and experimental approaches. It requires collaboration between scientists and engineers from various fields, including materials science, physics, chemistry, and electrical engineering. With ongoing research and advancements, we continue to make progress towards more efficient and cost-effective solar cells.