Self-cooling solar cells boost power, last longerTue, 22 Jul 2014 10:22:39 EDT
Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells -- keeping them cool, even in the blistering heat of the noonday sun. By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiation. Cheap, highly efficient solar cells: A new stable and cost-cutting type of perovskite solar cellThu, 17 Jul 2014 15:15:35 EDT
Scientists have made a very efficient perovskite solar cell that does not require a hole-conducting layer. The novel photovoltaic achieved energy conversion efficiency of 12.8 percent and was stable for over 1000 hours under full sunlight. The innovation is expected to significantly reduce the cost of these promising solar cells. Clearing the way for extremely efficient solar cells: First ab initio method for characterizing hot carriersThu, 17 Jul 2014 14:20:45 EDT
Researchers have developed the first ab initio method for characterizing the properties of 'hot carriers' in semiconductors. This should help clear a major road block to the development of new, more efficient solar cells. Deep within spinach leaves, vibrations enhance efficiency of photosynthesisSun, 13 Jul 2014 15:55:02 EDT
Biophysics researchers have used short pulses of light to peer into the mechanics of photosynthesis and illuminate the role that molecule vibrations play in the energy conversion process that powers life on our planet. Solar energy gets a boost: 'Singlet fission' can increase solar cell efficiency by as much as 30 percentTue, 08 Jul 2014 13:21:46 EDT
Scientists have reviewed chemists' work on "singlet fission," a process in which a single photon generates a pair of excited states. This conversion process has the potential to boost solar cell efficiency by as much as 30 percent.