• 5 minutes China Faces Economic Collapse
  • 8 minutes ZeroHedge: Oil And Gas Bankruptcies To Accelerate As $137 Billion Debt Matures Over Next Two Years
  • 11 minutes Trump Will Win In 2020
  • 14 minutes Oil Production Growth In U.S. Grinds To A Halt
  • 2 mins Drone attacks cause fire at two Saudi Aramco facilities, blaze now under control
  • 20 mins The Belt & Road Initiative: A Wolf in Sheep's Clothing?
  • 12 hours How OPEC and OECD play their role in setting oil price in light of Iranian oil sanction ?? Does the world agree with Iran's oil sanctions ???
  • 9 hours Cost of oil
  • 5 hours Democrats and Gun Views
  • 19 hours Swedish Behavioral Scientist Suggests Eating Humans to ‘Save the Planet’ from Climate Change. What could possibly go wrong?
  • 2 hours USAvChina.com
  • 19 hours Trump Orders Biofuel Boost
  • 14 hours Iran says tanker oil sold at sea, buyer sets destination
  • 5 hours US and China are already in a full economic war and this battle for global hegemony is a little bit frightening
  • 1 hour Iran in the world market
  • 23 hours Green New Deal Preview in Texas Town
  • 20 hours “Who’s going to bail out the Central Banks?”
Alt Text

European Carmakers Face Perfect Storm

Much stricter emission caps, high…

Alt Text

The Key To A Reliable And Greener Power Grid

Smart appliances and millions of…

Alt Text

Big Oil To Seal Record Number Of Green Energy Deals In 2019

The world’s biggest oil companies…

Brian Westenhaus

Brian Westenhaus

Brian is the editor of the popular energy technology site New Energy and Fuel. The site’s mission is to inform, stimulate, amuse and abuse the…

More Info

Premium Content

The Next Stage In Perovskite Solar Development

A Korea Advanced Institute of Science and Technology (KAIST) research team has proposed a perovskite material that serves as a potential active material for highly efficient lead-free thin-film photovoltaic devices. This material is expected to lay the foundation to overcome previously known limitations of perovskite including its stability and toxicity issues.

The KAIST research team has proposed a perovskite material, Cs2Au2I6 (Cesium, Gold, Iodine) that serves as a potential active material for highly efficient lead-free thin-film photovoltaic devices.

As strong candidates for next-generation high-efficiency photovoltaic cells, perovskite photovoltaic cells have a maximum photoconversion efficiency of 22 percent, comparable to high-performance crystalline silicon photovoltaic cells. In addition, perovskite-based cells can be fabricated at low temperatures, thereby bringing about dramatic cost reductions.

However, it has been noted that conventional organic-inorganic hybrid perovskite materials exhibit low stability, eventually degrading their performance and making them unfit for continued use. Moreover, their inclusion of lead has undermined their environmental friendliness.

So, a joint team led by Professor Hyungjun Kim from the KAIST Department of Chemistry and Professor Min Seok Jang from the School of Electrical Engineering has analyzed a previously discovered perovskite material, Cs2Au2I6, consisting of only inorganic substances and investigated its suitability for application in thin-film photovoltaic devices. Theoretical investigations suggest that this new perovskite material is not only as efficient but also more stable and environment friendly compared to the conventional perovskite materials.

Related: Oil Prices Rebound On Crude, Gasoline Inventory Draws

For this analysis, the team developed multiscale multiphysics simulation frameworks. Atomic-scale first-principle quantum calculations were carried out to study the optical properties of the proposed material, and device-scale electromagnetic simulations were conducted to suggest that the material could indeed serve as a promising photovoltaic substance at the device level.

From this point onward, the research team plans to extend the study in two directions: an empirical study to apply the perovskite material in real-world photovoltaic cells and a theoretical analysis to find the optimal and highly stable material for photovoltaic cells

The team said, “Perovskite materials are highly efficient, but in order to completely replace the conventional solar cells, their stability and toxicity issues must first be resolved.” They added that this research is expected to accelerate related studies in pursuit of high-efficiency, environment-friendly perovskite materials.

This research is being led by post-doc researcher Lamjed Debbichi and master’s candidate Songju Lee. The research paper has been published and selected as the front cover article of Advanced Materials.

This looks good for the perovskite field. The concern right off is the Cesium, which isn’t particularly inexpensive and the gold which surely is not cheap. Iodine probably won’t have much impact. There are also the requisite matters of manufacturing, scaling up, longevity and recycling to work through. This looks like finally a lead-free start for perovskite. Congratulations KAIST!

By New Energy And Fuel

More Top Reads From Oilprice.com:




Download The Free Oilprice App Today

Back to homepage



Leave a comment

Leave a comment




Oilprice - The No. 1 Source for Oil & Energy News
Download on the App Store Get it on Google Play