Bio meets nano: Quantum dots as light antennas for artificial photosynthetic systems
(PhysOrg.com) -- Our attempts to use solar energy continue to be very ineffective; the true masters of this craft are photosynthetic plants, algae, and bacteria. Science is trying to emulate these organisms.
Tiny tech, big results: Quantum dot solar cells increase solar conversion efficiency
Bacterial photosynthetic reaction center harvests more light thanks to tailored organic antenna
Getting energy from sunlight: Plants have it down; humans have not quite got the knack for it. Hybrid systems made from natural and synthetic components could open new routes for harvesting solar energy. ...
Breakthrough promises significantly more efficient solar cells
A new technique developed by U of T Engineering Professor Ted Sargent and his research group could lead to significantly more efficient solar cells, according to a recent paper published in the journal Nano Le ...
Atoms don't dance the 'Bose Nova'
(PhysOrg.com) -- Hanns-Christoph Naegerl's research group at the Institute for Experimental Physics, Austria, has investigated how ultracold quantum gases behave in lower spatial dimensions. They successfully ...
Physicists isolate bound states in graphene-superconductor junctions
(PhysOrg.com) -- Illinois researchers have documented the first observations of some unusual physics when two prominent electric materials are connected: superconductors and graphene.
Single nanomaterial yields many laser colors
Red, green, and blue lasers have become small and cheap enough to find their way into products ranging from BluRay DVD players to fancy pens, but each color is made with different semiconductor materials and ...
A quantum dot energy harvester: Turning waste heat into electricity on the nanoscale
A new type of nanoscale engine has been proposed that would use quantum dots to generate electricity from waste heat, potentially making microcircuits more efficient.
Tiny particles make LED light more pleasing
(AP) -- Light-emitting diodes are prime candidates for replacing inefficient incandescent bulbs, but have a few things working against them. They can provide a pleasing warm light or they can be energy-efficient, ...
Size matters: Quantum dots could make solar panels more efficient
(PhysOrg.com) -- Studies done by Mark Lusk and colleagues at the Colorado School of Mines could significantly improve the efficiency of solar cells. Their latest work describes how the size of light-absorbing ...
New imaging technique reveals the atomic structure of nanocrystals
(PhysOrg.com) -- A new imaging technique developed by researchers at the University of Illinois overcomes the limit of diffraction and can reveal the atomic structure of a single nanocrystal with a resolution ...
New spintronics material could help usher in next generation of microelectronics
(PhysOrg.com) -- As the electronics industry works toward developing smaller and more compact devices, the need to create new types of scaled-down semiconductors that are more efficient and use less power has become essential.
In solar cells, tweaking the tiniest of parts yields big jump in efficiency
(PhysOrg.com) -- By tweaking the smallest of parts, a trio of University at Buffalo engineers is hoping to dramatically increase the amount of sunlight that solar cells convert into electricity.
A new light source for quantum computers
Researchers have discovered a new way of emitting photons one at a time. They have constructed semiconductor nanowires with "quantum dots" of unprecedented quality - a discovery with implications for the ...