Direct conversion of radiation into electricity using carbon nanotubes and a separate new approach to thermoelectrics

Liviu Popa-Simil, former Los Alamos National Laboratory nuclear engineer and founder of private research and development company LAVM and Claudiu Muntele, of Alabama A&M University, US, say transforming the energy of radioactive particles into electricity is twenty times more effective (up to power density of 1 kw/cm^3) than thermoelectric materials. It will be big impact …

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Thermoelectric 40% improvement in a cheap material

Researchers at Boston College and MIT have used nanotechnology to achieve a major increase in thermoelectric efficiency, a milestone that paves the way for a new generation of products – from semiconductors and air conditioners to car exhaust systems and solar power technology – that run cleaner. UPDATE:Info from the Technology Review on how this …

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Variable sized quantum dots could lead to more efficient and partially transparent solar cells

Electron transport through a structure of nanoparticles (left) and more ordered nanotubes (center) is shown. At right, different wavelengths of light can be absorbed by different-sized quantum dots layered in a “rainbow” solar cell. Image credit: Kongkanand, et al. ©2008 ACS. Solar cells made of different-sized quantum dots, each tuned to a specific wavelength of …

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Semiconductor fabrication status

IBM is producing PS3 cell processors using 45 nm processes on 300mm wafers The die size of the Cell processor at 90 nm features was 221 mm**2. Therefore, the 45nm die size should be about 55-70 mm**2. So a perfect wafer would have about 300 cell processors at 90nm and would have 1000 cell processors …

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Printable electronics and Fijitsu uses carbon nanotubes to grow Graphene

NEC has printed carbon nanotube transistors on plastic with an electron mobility of 100 cm**2/Vs More information is here I had previously covered work at many other labs working on improving printable electronic speed using many different methods Fijitsu has used a forest of carbon nanotubes (MCNT) to grow graphene at low (510 degrees Celsius …

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