semiconductors Archives – The Green Optimistic green tech news, since 2008 Thu, 06 Dec 2012 07:30:43 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 New Method for Increasing Heat Transfer Rate Has Far-Reaching Implications https://www.greenoptimistic.com/new-method-for-increasing-heat-transfer-rate-has-far-reaching-implications-20121206/ https://www.greenoptimistic.com/new-method-for-increasing-heat-transfer-rate-has-far-reaching-implications-20121206/#respond Thu, 06 Dec 2012 07:30:41 +0000 https://www.greenoptimistic.com/?p=29414 Scientists at Rensselaer Polytechnic Institute’s Department of Materials Science and Engineering in Troy, New York have developed a new method for increasing the heat transfer rate across two different materials. This method might advance LED devices, collecting solar power, harvesting waste heat, and cooling computer chips. The study was funded with support from the National […]

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]]> https://www.greenoptimistic.com/new-method-for-increasing-heat-transfer-rate-has-far-reaching-implications-20121206/feed/ 0 29414 Fraunhofer Develops New, Easy to Make High Efficiency Solar Cells https://www.greenoptimistic.com/fraunhofer-n-type-solar-cells-20090929/ https://www.greenoptimistic.com/fraunhofer-n-type-solar-cells-20090929/#respond Tue, 29 Sep 2009 16:06:01 +0000 https://www.greenoptimistic.com/?p=4560 Yet another efficiency record has been established for mass-producible solar cells: 23.4%. The Fraunhofer Institute for Solar Energy Systems (ISE) from Germany succeeded to manufacture a single-crystal silicon solar cell of a thin p-type semiconductor layer residing on an n-type semiconductor substrate. The solar cell's area is 2x2cm.

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