Stanford University (2010, August 2). New solar energy conversion process could double solar efficiency of solar cells. ScienceDaily. Retrieved October 2, 2010 Citat: "...The process, called "photon enhanced thermionic emission," or PETE, could reduce the costs of solar energy production enough for it to compete with oil as an energy source...Melosh's group figured out that by coating a piece of semiconducting material with a thin layer of the metal cesium, it made the material able to use both light and heat to generate electricity...Melosh calculates the PETE process can get to 50 percent efficiency or more under solar concentration, but if combined with a thermal conversion cycle, could reach 55 or even 60 percent -- almost triple the efficiency of existing systems...", backup
spie.org: Upconverting glasses for high-efficiency solar cells Citat: "...We used this method to convert low-energy photons into high-energy ones demonstrating an increase in the efficiency of a photovoltaic system. Specifically, our system is glass doped with the trivalent rare-earth ion erbium (Er3+)...", backup
technologyreview.com
technologyreview.com: No P-N Intended. A cracked crystal launched the silicon revolution Citat: "...Early in 1940 Ohl examined a silicon sample that had a crack down its middle. Something was strange about that crystal: when it was exposed to light, the current flowing between the two sides of the crack jumped significantly. Baffled, Ohl showed the bizarre sample to his Bell colleagues, who were equally amazed. No one had ever seen a photovoltaic reaction like it...", backup
web.archive.org
technologyreview.com: No P-N Intended. A cracked crystal launched the silicon revolution Citat: "...Early in 1940 Ohl examined a silicon sample that had a crack down its middle. Something was strange about that crystal: when it was exposed to light, the current flowing between the two sides of the crack jumped significantly. Baffled, Ohl showed the bizarre sample to his Bell colleagues, who were equally amazed. No one had ever seen a photovoltaic reaction like it...", backup
spie.org: Upconverting glasses for high-efficiency solar cells Citat: "...We used this method to convert low-energy photons into high-energy ones demonstrating an increase in the efficiency of a photovoltaic system. Specifically, our system is glass doped with the trivalent rare-earth ion erbium (Er3+)...", backup
Stanford University (2010, August 2). New solar energy conversion process could double solar efficiency of solar cells. ScienceDaily. Retrieved October 2, 2010 Citat: "...The process, called "photon enhanced thermionic emission," or PETE, could reduce the costs of solar energy production enough for it to compete with oil as an energy source...Melosh's group figured out that by coating a piece of semiconducting material with a thin layer of the metal cesium, it made the material able to use both light and heat to generate electricity...Melosh calculates the PETE process can get to 50 percent efficiency or more under solar concentration, but if combined with a thermal conversion cycle, could reach 55 or even 60 percent -- almost triple the efficiency of existing systems...", backup
