Nano Tera Wiki: ENERGY

Revision [3036]

Last edited on 2010-09-07 13:56:42 by LeonoreGolay

Additions:

""Semprius""
""First Solar""
""IBM""
[[http://www.nano-tera.ch/nanoterawiki/SolarCell#Toronto TorontoUniversity]]
""Sandia National Laboratory""
""U. of Alberta""

Deletions:

""Semprius""
""First Solar""
""IBM""
[[http://www.nano-tera.ch/nanoterawiki/Energy#Toronto TorontoUniversity]]
""Sandia National Laboratory""
""U. of Alberta""

Revision [3035]

Edited on 2010-09-07 13:55:44 by LeonoreGolay

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**[[Security Security]]**
**[[SolarCell Sollar Cell]]**

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1. http://www.energyharvestingjournal.com/articles/ibm-claims-world-record-by-creating-high-efficiency-solar-cell-00002044.asp?sessionid=1
2. http://www.alternative-energy-news.info/tiny-solar-cells/
3. http://www.technologyreview.com/energy/23108/?a=f
4. http://www.technologyreview.com/energy/24504/
5. http://www.sciencedaily.com/releases/2009/02/090225223324.htm
32. http://www.physorg.com/news200070766.html

Revision [3034]

Edited on 2010-09-07 13:54:22 by LeonoreGolay

Additions:

[[http://www.nano-tera.ch/nanoterawiki/SolarCell Solar Cells]]
Click here to reach the [[SolarCell Nano-Tera.ch/wiki/Solar Cell]] page

Deletions:

[[http://www.nano-tera.ch/nanoterawiki/Energy#Solar Solar Cells]]
==== ""University of Toronto"": New inexpensive solar cell design====
**{[[http://light.utoronto.ca/ Department of Electrical and Computer Engineering, Photovoltaic]]/ [[http://www.light.utoronto.ca/team-members/program-director Dr. Lukasz Brzozowski]]}**
(Aug 2010)
One of the most promising technologies for making inexpensive but reasonably efficient solar photovoltaic cells just got much cheaper. Scientists at the University of Toronto in Canada have shown that inexpensive nickel can work just as well as gold for one of the critical electrical contacts that gather the electrical current produced by their colloidal quantum dot solar cells. **[[[http://www.physorg.com/news200070766.html 32]]]**
==== ""IBM"": Efficient Solar Cells from Cheaper Materials====
**{National Renewable Energy Lab & [[http://www.ibm.com/ IBM]]/ Dr.Matthew Beard}**
(Feb 2010)
Researchers at IBM have increased the efficiency of a novel type of solar cell made largely from cheap and abundant materials by over 40 percent. The new efficiency is 9.6 percent, up from the previous record of 6.7 percent for this type of solar cell, and near the level needed for commercial solar panels. The IBM solar cells also have the advantage of being made with an inexpensive ink-based process.
The new solar cells convert light into electricity using a semiconductor material made of copper, zinc, tin, and sulfur--all abundant elements--as well as the relatively rare element selenium (CZTS). Reaching near-commercial efficiency levels is a "breakthrough for this technology," says Matthew Beard, a senior scientist at the National Renewable Energy Laboratory, who was not involved with the work. **[[[http://www.energyharvestingjournal.com/articles/ibm-claims-world-record-by-creating-high-efficiency-solar-cell-00002044.asp?sessionid=1 1]]]**
==== ""Sandia National Lab"": Revolutionary Tiny Solar Cells====
**{[[http://www.sandia.gov/ Sandia National Laboratories]] / Greg Nielson}**
The dimensions of these snowflake sized crystalline-silicon photovoltaic cells are merely 14-20 micrometers thick and measure 0.25 to 1 millimeters across i.e. only 10% as thick as regular ones. They also consume an estimated 100 times less silicon to produce the same amount of electricity compared to standard solar cells. Their efficiency level is 14.9%.
These cells attain their minuscule size due to the application of the techniques like microelectronic and micro electromechanical systems (MEMS).**[[[http://www.alternative-energy-news.info/tiny-solar-cells/ 2]]]**
==== ""First Solar"": The Solar Power Under $1 per Watt====
**{[[http://www.firstsolar.com First Solar]]/ Robert Gillette, CEO}**
(Aug. 2009)
Conventional technologies "have made the kind of progress that we were hoping futuristic technologies could make." For example, researchers have sought to bring the cost of solar power to under $1 per watt, and as of the first quarter of this year one company, First Solar, has done this. **[[[http://www.technologyreview.com/energy/23108/?a=f 3]]]**
==== ""Semprius"": Micro Solar Cells Handle More Intense Sunlight====
**{[[http://www.semprius.com Semprius]]/ Joseph Carr, CEO}**
A startup company hopes to bring down the cost of generating power with concentrated sunlight by using microscale solar cells that can utilize twice as much light as other panels, without the need for expensive optics or cooling systems. NC-based company Semprius developed using a novel microprinting technology, also offer significant savings on materials costs. In late January, the company announced a joint agreement with Siemens to develop demonstration systems based on its technology. Semprius plans to begin volume production of the modules in 2013.** [[[http://www.technologyreview.com/energy/24504/ 4]]]**
==== ""U. of Alberta"": Solar Energy Performance With Plastic Solar Cells Improved With New Method====
**{[[http://www.nrc-cnrc.gc.ca/nint-innt/index.html National Institute for Nanotechnology]] of U of Alberta/ [[http://www.chem.ualberta.ca/~buriak/Buriak.html Prof. Jillian Buriak]]}**
(Feb. 2009)
Plastic solar cells are made up of layers of different materials, each with a specific function, called a sandwich structure. Jillian Buriak uses a simple analogy to describe the approach: "Consider a clubhouse sandwich, with many different layers. One layer absorbs the light, another helps to generate the electricity,etc... Normally, the layers don't stick well, and so the electricity ends up stuck and never gets out, leading to inefficient devices". After two years of research, these scientists have, by only working on one part of the sandwich, seen improvements of about 30 per cent in the efficiency of the working model.** [[[http://www.sciencedaily.com/releases/2009/02/090225223324.htm 5]]]**

Revision [3026]

Edited on 2010-09-07 11:43:00 by LeonoreGolay

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==== ""University of Toronto"": New inexpensive solar cell design====
**{[[http://light.utoronto.ca/ Department of Electrical and Computer Engineering, Photovoltaic]]/ [[http://www.light.utoronto.ca/team-members/program-director Dr. Lukasz Brzozowski]]}**
(Aug 2010)
One of the most promising technologies for making inexpensive but reasonably efficient solar photovoltaic cells just got much cheaper. Scientists at the University of Toronto in Canada have shown that inexpensive nickel can work just as well as gold for one of the critical electrical contacts that gather the electrical current produced by their colloidal quantum dot solar cells. **[[[http://www.physorg.com/news200070766.html 32]]]**
[[http://www.nano-tera.ch/nanoterawiki/Energy#Toronto TorontoUniversity]]
32. http://www.physorg.com/news200070766.html

Revision [2985]

Edited on 2010-07-28 14:28:48 by LeonoreGolay

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Humdinger has developed a completely new approach to wind energy harvesters. The device uses aeroelastic flutter and vibration of a membrane rather than a spinning turbine. Compared to piezoelectric turbine-based systems, this is about ten times more efficient, producing milliwatts of power depending on the wind speed. Power is produced in air flows from as little as 3 m/s. At 5.5 m/s of wind flow the power output is 2mW. The power output versus wind speed is shown below.**[[[http://www.energyharvestingjournal.com/articles/wind-energy-harvester-from-humdinger-00002146.asp?sessionid=1 30]]]**

Deletions:

Humdinger last week in Hong Kong, a start-up company of six people that has developed a completely new approach to wind energy harvesters. The device, pictured, uses aeroelastic flutter and vibration of a membrane rather than a spinning turbine. Compared to piezoelectric turbine-based systems, this is about ten times more efficient, producing milliwatts of power depending on the wind speed. Power is produced in air flows from as little as 3 m/s. At 5.5 m/s of wind flow the power output is 2mW. The power output versus wind speed is shown below.**[[[http://www.energyharvestingjournal.com/articles/wind-energy-harvester-from-humdinger-00002146.asp?sessionid=1 30]]]**

Revision [2979]

Edited on 2010-07-28 13:25:47 by LeonoreGolay

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Now researchers at Drexel University in Philadelphia have demonstrated that it's possible to use techniques borrowed from the chip-making industry to make thin-film carbon ultracapacitors that store three times as much energy by volume as conventional ultracapacitor materials. While that is not as much as batteries, the thin-film ultracapacitors could operate without ever being replaced. **[[[http://www.technologyreview.com/energy/25170/ 31]]]**

Deletions:

Now researchers at Drexel University in Philadelphia have demonstrated that it's possible to use techniques borrowed from the chip-making industry to make thin-film carbon ultracapacitors that store three times as much energy by volume as conventional ultracapacitor materials. While that is not as much as batteries, the thin-film ultracapacitors could operate without ever being replaced. [[[http://www.technologyreview.com/energy/25170/ 31]]]**

Revision [2978]

Edited on 2010-07-28 13:24:20 by LeonoreGolay

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==== ""Drexel Uni."": New ultracapacitor material could be fabricated directly on chips and solar cells====
**{[[http://nano.materials.drexel.edu/ Drexel University in Philadelphia, Materials Science and Engineering]] / Prof. Yury Gogotsi}**
(April 2010)
Now researchers at Drexel University in Philadelphia have demonstrated that it's possible to use techniques borrowed from the chip-making industry to make thin-film carbon ultracapacitors that store three times as much energy by volume as conventional ultracapacitor materials. While that is not as much as batteries, the thin-film ultracapacitors could operate without ever being replaced. [[[http://www.technologyreview.com/energy/25170/ 31]]]**
[[http://www.nano-tera.ch/nanoterawiki/Energy#Drexel Drexel University]]
31. http://www.technologyreview.com/energy/25170/

Revision [2977]

Edited on 2010-07-28 10:51:25 by LeonoreGolay

Additions:

[[http://www.nano-tera.ch/nanoterawiki/Energy#Wind Wind Energy]]

Deletions:

~~[[http://www.nano-tera.ch/nanoterawiki/Energy#Wind Wind Transfer]]~~

Revision [2976]

Edited on 2010-07-28 10:33:04 by LeonoreGolay

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==== ""Humdinger Wind Energy"": Wind energy harvester====
**{[[http://www.humdingerwind.com/ Humdinger]] / Shawn Frayne, President}**
(March 2010)

Deletions:

==== ""Humdinger"": A More Durable Wind Turbine====
**{[[http://www.humdingerwind.com/ Humdinger]] / Paul Merswolke, Founder}**

Revision [2975]

Edited on 2010-07-28 10:31:28 by LeonoreGolay

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==== ""Humdinger"": A More Durable Wind Turbine====
**{[[http://www.humdingerwind.com/ Humdinger]] / Paul Merswolke, Founder}**
Humdinger last week in Hong Kong, a start-up company of six people that has developed a completely new approach to wind energy harvesters. The device, pictured, uses aeroelastic flutter and vibration of a membrane rather than a spinning turbine. Compared to piezoelectric turbine-based systems, this is about ten times more efficient, producing milliwatts of power depending on the wind speed. Power is produced in air flows from as little as 3 m/s. At 5.5 m/s of wind flow the power output is 2mW. The power output versus wind speed is shown below.**[[[http://www.energyharvestingjournal.com/articles/wind-energy-harvester-from-humdinger-00002146.asp?sessionid=1 30]]]**
[[http://www.nano-tera.ch/nanoterawiki/Energy#Humdinger Humdinger]]
29. http://www.energyharvestingjournal.com/articles/wind-energy-harvester-from-humdinger-00002146.asp?sessionid=1
30. http://www.energyharvestingjournal.com/articles/wind-energy-harvester-from-humdinger-00002146.asp?sessionid=1

Revision [2974]

Edited on 2010-07-28 09:47:59 by LeonoreGolay

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==== ""Stevens Institute of Technology"": Miniature energy harvesting technologies highlighted====
**{Stevens Institute of Technology, Mechanical Engineering Dept / Prof. Yong Shi}**
(July 2010)
Dr. Shi’s work focuses on miniature energy harvesting technologies that could potentially power wireless electronics, portable devices, stretchable electronics, and implantable biosensors. The concept involves piezoelectric nanowire- and nanofiber-based generators that would power such devices through a conversion of mechanical energy into electrical energy.**[[[http://www.nano.org.uk/news/701/ 28]]]**
[[http://www.nano-tera.ch/nanoterawiki/Energy#Stevens Stevens Institute of Technology]]
28. http://www.nano.org.uk/news/701/

Revision [2937]

Edited on 2010-07-20 05:05:28 by GaryDavid

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Researchers release [[http://www.essaywriter.co.uk/services.aspx essays]] at the University of Miami and at the Universities of Tokyo and Tohoku, Japan, have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets in a device called a magnetic tunnel junction (MTJ). The new technology is a step towards the creation of computer hard drives with no moving parts, which would be much faster, less expensive and use less energy than current ones. In the future, the new battery could be developed to power cars. **[[[http://www.sciencedaily.com/releases/2009/03/090311162807.htm 13]]]**

Deletions:

Researchers at the University of Miami and at the Universities of Tokyo and Tohoku, Japan, have been able to prove the existence of a "spin battery," a battery that is "charged" by applying a large magnetic field to nano-magnets in a device called a magnetic tunnel junction (MTJ). The new technology is a step towards the creation of computer hard drives with no moving parts, which would be much faster, less expensive and use less energy than current ones. In the future, the new battery could be developed to power cars. **[[[http://www.sciencedaily.com/releases/2009/03/090311162807.htm 13]]]**

Revision [2929]

Edited on 2010-07-13 12:20:09 by LeonoreGolay

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**{[[http://www.sisa.samsung.com Samsung R&D Center]] and [[http://www.skku.edu/eng/ Sungkunkwan University]] }**

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~~**{[[http://www.sisa.samsung.com/default.htm/ Samsung R&D Center]] and [[http://www.skku.edu/eng/ Sungkunkwan University]] }**~~

Revision [2928]

Edited on 2010-07-13 12:08:01 by LeonoreGolay

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**{[[http://www.sandia.gov/ Sandia National Laboratories]] / Greg Nielson}**

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~~**{[[http://www.sandia.gov/ Sandia National Laboratories / Greg Nielson]]}**~~

Revision [2925]

Edited on 2010-07-05 17:17:32 by LeonoreGolay

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==== ""Samsung"": Harvesting Energy From Touch Screens ====
**{[[http://www.sisa.samsung.com/default.htm/ Samsung R&D Center]] and [[http://www.skku.edu/eng/ Sungkunkwan University]] }**
Researchers at Sungkunkwan University in Korea, together with researchers at Samsung, have devised an innovative technique of capturing power from a touch screen when it flexes under a user’s touch. On pressing a touch screen, a change is induced in the electrical potential across the nanowires that are originally used to detect the location of the touch. **[[[http://dataweek.co.za/article.aspx?pklArticleId=6198&pklCategoryId=31 27]]]**
27. http://dataweek.co.za/article.aspx?pklArticleId=6198&pklCategoryId=31

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~~==== ""Samsung"": Harvesting energy from touch screens ====~~

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Edited on 2010-07-05 17:01:33 by LeonoreGolay

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==== ""Samsung"": Harvesting energy from touch screens ====

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Edited on 2010-07-05 16:00:33 by LeonoreGolay

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==== ""SolarBotanic"": Vibration harvesting ====
""SolarBotanic""

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==== ""SolarBotanic"": Vibration harvesting ====
""SolarBotanic""

Revision [2922]

Edited on 2010-07-05 15:59:31 by LeonoreGolay

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**{[[http://www.solarbotanic.com/ Solar Botanic]]}**

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~~**{[[http://http://www.solarbotanic.com/ Solar Botanic]]}**~~

Revision [2921]

Edited on 2010-07-05 15:59:13 by LeonoreGolay

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**{[[http://http://www.solarbotanic.com/ Solar Botanic]]}**

Revision [2920]

The oldest known version of this page was created on 2010-07-05 15:56:42 by LeonoreGolay