http://scim.ag/1eQMUOZ
For decades, solar technologies have made slow and steady progress. But
recently, a new contender with plenty of promise has hurdled into the
mix. The latest solar cell competitor takes the form of modified
perovskites—a complex crystalline material.When scientists first tested
them in 2009, these solar cells converted sunlight to usable electricity
with 3.8% efficiency. A modest result but since then, researchers have
been increasing its efficiency by leaps and bounds. That number is now
at 15% efficiency, which is comparable to current commercial silicon
cells that deliver around 20%. This speed of progress has made many
researchers deem perovskites a ray of light for the future, a real
possibility in making solar power cheap enough to compete in the
marketplace. But first, they must confront some very large obstacles
before flipping that possibility into an actuality. To learn more, read
the News and Analysis story here http://scim.ag/1eQMUOZ
[The efficiency with which perovskite solar cells convert the energy in
sunlight to electricity (purple) has soared faster in recent years than
any competing solar technology.Top Image Credit: Douglas Fry. Bottom
Image credit: Chart Adapted From P. Nayak/Weizmann Institute; G.
Grullón/ Science]
http://scim.ag/1eQMUOZ
For decades, solar technologies have made slow and steady progress. But recently, a new contender with plenty of promise has hurdled into the mix. The latest solar cell competitor takes the form of modified perovskites—a complex crystalline material.When scientists first tested them in 2009, these solar cells converted sunlight to usable electricity with 3.8% efficiency. A modest result but since then, researchers have been increasing its efficiency by leaps and bounds. That number is now at 15% efficiency, which is comparable to current commercial silicon cells that deliver around 20%. This speed of progress has made many researchers deem perovskites a ray of light for the future, a real possibility in making solar power cheap enough to compete in the marketplace. But first, they must confront some very large obstacles before flipping that possibility into an actuality. To learn more, read the News and Analysis story here http://scim.ag/1eQMUOZ
[The efficiency with which perovskite solar cells convert the energy in sunlight to electricity (purple) has soared faster in recent years than any competing solar technology.Top Image Credit: Douglas Fry. Bottom Image credit: Chart Adapted From P. Nayak/Weizmann Institute; G. Grullón/ Science]