OPN November 2012
Cover Story
Thin-Film Photovoltaics: Making Every Photon Count

Yvonne Carts-Powell
Researchers are turning to organic and hybrid nanoscale structures to create more cost-effective solar cells. Thin-film photovoltaic technologies that incorporate silicon are among the best options for effectively managing light.
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Fifty Years of Visible LEDs
Patricia Daukantas
Originally a byproduct of the race to build a semiconductor laser, the visible light-emitting diode emerged in the fall of 1962. Following the “alloy road,” scientists have devised ever-brighter LEDs—and poised them to displace a century-old lighting technology. more>>
Mapping Matter
Yvonne Carts-Powell
Using infrared and X-ray lasers to reveal light’s effect on matter. more>>
U.S. Science Funding in Jeopardy
Sarah Michaud
The U.S. Office of Management and Budget released a report detailing the potential science funding reductions slated to go into effect 2 January 2013, barring an agreement in Congress on deficit reduction. more>>