(Phys.org)—A team of researchers working at Oxford University has found a way to add cesium to perovskite solar cells to boost the performance of silicon, while maintaining the efficiency benefits it offers. In their paper ...
A single drop of blood is teeming with microorganisms—imagine if we could see them, and even nanometer-sized viruses, with the naked eye. That's a real possibility with what scientists call a "perfect lens." The lens hasn't ...
Optics & Photonics
Jul 17, 2015
2
870
The global rise in antibiotic resistance is a growing threat to public health, damaging our ability to fight deadly infections such as tuberculosis.
Bio & Medicine
Jun 25, 2015
1
99
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 silver ants ...
Plants & Animals
Jun 18, 2015
15
10601
Artists, print designers and interior decorators have long had access to a broad palette of paint and ink colors for their work. Now, researchers have created a broad color palette of electrochromic polymers, materials that ...
Polymers
Feb 9, 2015
0
62
Any science textbook will tell you we can't see infrared light. Like X-rays and radio waves, infrared light waves are outside the visual spectrum. But an international team of researchers co-led by scientists at Washington ...
Other
Dec 1, 2014
21
2
Inspired perhaps by Harry Potter's invisibility cloak, scientists have recently developed several ways—some simple and some involving new technologies—to hide objects from view. The latest effort, developed at the University ...
Optics & Photonics
Nov 19, 2014
17
0
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 reach Earth's surface ...
Nanomaterials
Sep 29, 2014
2
0
(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 multiple electrons. ...
Nanophysics
Jun 19, 2014
0
0
A device that essentially listens for light waves could help open up the last frontier of the electromagnetic spectrum—the terahertz range.
Optics & Photonics
May 19, 2014
3
0
