News tagged with zinc oxide

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New solar-cell design based on dots and wires

Using exotic particles called quantum dots as the basis for a photovoltaic cell is not a new idea, but attempts to make such devices have not yet achieved sufficiently high efficiency in converting sunlight ...

Mar 25, 2013
5 / 5 (4) 1

Nanotechnology changes behavior of materials

One of the reasons solar cells are not used more widely is cost—the materials used to make them most efficient are expensive. Engineers are exploring ways to print solar cells from inks, but the devices ...

Jan 23, 2015
5 / 5 (4) 1

Off-the-shelf dyes improve solar cells

Like most technologies, work on solar devices has proceeded in generational waves. First came bulk silicon-based solar cells built with techniques that borrowed heavily from those used to make computer chips. Next came work ...

Aug 31, 2010
4.8 / 5 (4) 0

Voice-based phone recharging

(PhysOrg.com) -- The noise that we produce can be a lot of things. It can be a valid means of communication. It can be an annoyance when you are trying to get to bed at night. It can be a migraine waiting ...

May 10, 2011 weblog
3.4 / 5 (5) 8

Nanowires exhibit giant piezoelectricity

Gallium nitride (GaN) and zinc oxide (ZnO) are among the most technologically relevant semiconducting materials. Gallium nitride is ubiquitous today in optoelectronic elements such as blue lasers (hence the blue-ray disc) ...

Jan 26, 2011
5 / 5 (3) 0

A new catalyst for ethanol made from biomass

Researchers in the Pacific Northwest have developed a new catalyst material that could replace chemicals currently derived from petroleum and be the basis for more environmentally friendly products including ...

Aug 01, 2011
5 / 5 (3) 0