Posts

Showing posts with the label Energy

TV interview with Dr.Suresh Babu, Scientist, SPL, VSSC, ISRO

Image
Congrats Dr. Suresh Babu for bagging the prestigious Shanthi Swarup Bhatnagar Prize 2017. CLICK HERE  Proud of you...!!! Wishing you and team more success !!

Ice darkening in Greenland

Image
Greenland is an immense, glittering expanse of snow and ice. But in recent summers, satellites have been observing less “glitter” from the Northern Hemisphere’s largest ice expanse due to surface melt and other changes caused by warmer temperatures. The summer of 2012 found Greenland darker than it has been since ice-sheet-wide observations began in 2000. The darkest areas occurred around the perimeter of the island—the lowest elevations, where melting is most significant—but virtually the entire ice sheet showed below-average reflectivity. Courtesy: Climate Watch Magazine by NOAA http://www.climatewatch.noaa.gov/article/2012/less-glitter-greenland-ice-sheet-continued-to-darken-in-summer-2012 Map by NOAA Climate.gov team, based on NASA MODIS albedo data provided by Jason Box, The Ohio State University. Inset image is from NASA’s Terra satellite, courtesy the  LANCE MODIS Rapid Response Project.  Reviewed by Jason Box.

Inexpensive and Efficient Solar Cell

Image
Hybrid graphene-quantum dot phototransistor. Image (c) Nature Nanotechnology (2012) doi:10.1038/nnano.2012.60 Engineers have used inexpensive materials to create a solar cell certified at a world-record 7.0 percent efficiency. The solar cell represents a 37 percent increase in efficiency over the previous certified record. A breakthrough in the development of colloidal quantum dot (CQD) films allowed the researchers from the University of Toronto and King Abdullah University of Science & Technology (KAUST) to develop the solar cell. Their work is featured in a letter published in Nature Nanotechnology. Here is the original article from Nature Nanotechnology (published last week of July,2012) http://www.nature.com/nnano/journal/vaop/ncurrent/pdf/nnano.2012.127.pdf Hybrid graphene–quantum dot phototransistors with ultrahigh gain, Nature Nanotechnology (2012) doi:10.1038/nnano.2012.60 Read more at:  http://phys.org/news/2012-05-group-highly-sensitive-photodetector-grap...