|Submited on :||Thu, 11th of Oct 2018 - 21:39:45 PM|
|Post ID :||9na1tm|
|Post Name :||t3_9na1tm|
|Post Type :||link|
|Subreddit Type :||public|
|Subreddit ID :||t5_2t7no|
When carrier multiplication occurs, the conversion from light into electricity can become much more efficient. For example, in ordinary solar cells, there is a theoretical limit (the so-called Shockley-Queisser limit) on the amount of energy that can be converted—at most, a little over 33 percent of the solar power gets turned into electrical power. In semiconductor nanocrystals under the carrier multiplication effect, however, a maximum efficiency of up to 44 percent is predicted.
Me: Wasn't it around 2009 say, that the best we could swing was about 17%? For not even being ten years that is pretty good. In ten more years I bet we have some serious energy production capability even without (manmade) fusion reactors.
TIL about Tokyo's incredibly efficient recycling systems. All combustible trash is incinerated, the smoke and gasses cleaned before release, and then the left over ash is used as a replacement for clay in the cement used for construction.
New ‘two-faced’ membrane can convert 35.7% of the chemical energy stored in salty sea water into useable electricity. That’s as efficient as most wind turbines and higher than most solar cells, as reported in Science Advances.
Europe to ban halogen lightbulbs - After nearly 60 years of brightening our homes and streets, halogen lightbulbs will finally be banned across Europe on 1 September, to be replaced with more energy efficient LEDs