Multijunction solar cell could exceed 50% efficiency goal
Synergistic effect discovered in layered quantum dot solar cells
New two-dimensional semiconductor has ideal band gap for solar harvesting
Scientists design solar cells that exceed the conventional light-trapping limit
Nano-LEDs emit full visible spectrum of light
Cheap, abundant cathode material found for producing hydrogen fuel (w/ video)
Solving the solar cell power conversion dilemma
Saharan silver ants can control electromagnetic waves over extremely broad spectrum range
Nanfang Yu, assistant professor of applied physics at Columbia Engineering, and colleagues from the University of Zürich and the University of Washington, have discovered two key strategies that enable Saharan ...
How to make a "perfect" solar absorber
The key to creating a material that would be ideal for converting solar energy to heat is tuning the material's spectrum of absorption just right: It should absorb virtually all wavelengths of light that ...
New approach may be key to quantum dot solar cells with real gains in efficiency
(Phys.org) —Los Alamos researchers have demonstrated an almost four-fold boost of the carrier multiplication yield with nanoengineered quantum dots. Carrier multiplication is when a single photon can excite ...
New solar cell technology captures high-energy photons more efficiently
(Phys.org) —Getting the blues is rarely a desirable experience—unless you're a solar cell, that is.
Toward a truly white organic LED: Physicists develop polymer with tunable colors
By inserting platinum atoms into an organic semiconductor, University of Utah physicists were able to "tune" the plastic-like polymer to emit light of different colors – a step toward more efficient, less ...
Data from Voyager 1 point to interstellar future
(Phys.org) -- Data from NASA's Voyager 1 spacecraft indicate that the venerable deep-space explorer has encountered a region in space where the intensity of charged particles from beyond our solar system has ...
Trapping a rainbow: Researchers slow broadband light waves with nanoplasmonic structures
A team of electrical engineers and chemists at Lehigh University have experimentally verified the "rainbow" trapping effect, demonstrating that plasmonic structures can slow down light waves over a broad range of wavelengths.