Navigation Links
Solar nanowire array may increase percentage of sun's frequencies available for energy conversion
Date:6/20/2012

ALBUQUERQUE, N.M. Researchers creating electricity through photovoltaics want to convert as many of the sun's wavelengths as possible to achieve maximum efficiency. Otherwise, they're eating only a small part of a shot duck: wasting time and money by using only a tiny bit of the sun's incoming energies.

For this reason, they see indium gallium nitride as a valuable future material for photovoltaic systems. Changing the concentration of indium allows researchers to tune the material's response so it collects solar energy from a variety of wavelengths. The more variations designed into the system, the more of the solar spectrum can be absorbed, leading to increased solar cell efficiencies. Silicon, today's photovoltaic industry standard, is limited in the wavelength range it can 'see' and absorb.

But there is a problem: Indium gallium nitride, part of a family of materials called III-nitrides, is typically grown on thin films of gallium nitride. Because gallium nitride atomic layers have different crystal lattice spacings from indium gallium nitride atomic layers, the mismatch leads to structural strain that limits both the layer thickness and percentage of indium that can be added. Thus, increasing the percentage of indium added broadens the solar spectrum that can be collected, but reduces the material's ability to tolerate the strain.

Cross-sectional images of the indium gallium nitride nanowire solar cell. (Image courtesy of Sandia National Laboratories) Click on thumbnail for a high-resolution image.

Sandia National Laboratories scientists Jonathan Wierer Jr. and George Wang reported in the journal Nanotechnology that if the indium mixture is grown on a phalanx of nanowires rather than on a flat surface, the small surface areas of the nanowires allow the indium shell layer to partially "relax" along each wire, easing strain. This relaxation allowed the team to create a nanowire solar cell with indium percentages of roug
'/>"/>

Contact: Neal Singer
nsinger@sandia.gov
505-845-7078
DOE/Sandia National Laboratories
Source:Eurekalert

Page: 1 2

Related biology technology :

1. University of Florida physicists set new record for graphene solar cell efficiency
2. Taking solar technology up a notch
3. Tiny fractal trees for solar power
4. In solar cells, tweaking the tiniest of parts yields big jump in efficiency
5. Notre Dame researchers develop paint-on solar cells
6. Discovery of a dark state could mean a brighter future for solar energy
7. A light wave of innovation to advance solar energy
8. Pitt researchers coax gold into nanowires
9. Stanford engineers weld nanowires with light
10. Voltage increases up to 25 percent observed in closely packed nanowires at Sandia Labs
11. RayBiotech, Inc. and the University of Oslo Enter into Antibody Array Services Collaboration
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... Boston, MA (PRWEB) July 31, 2014 ... ) finds itself flush with innovative adult stem cell ... patents and has three additional patent applications ... Office. , The patented inventions address two of the ... and regenerative medicine. Adult stem cells are difficult ...
(Date:7/30/2014)... , July 30, 2014  Decision Resources ... and medical directors in the United ... of biosimilar market penetration will be the level ... (MCOs) and the expected lower cost to patients. ... biosimilars that meet their pricing expectations in order ...
(Date:7/30/2014)... 2014 Selexis SA , a ... discovery and mammalian cell line development, announced today new ... will be presented at the 10th Annual Cell ... 8 – 10, 2014 at the Double Tree by ... following abstract will be presented during an oral presentation: ...
(Date:7/30/2014)... 30, 2014 BCC Research ( http://www.bccresearch.com ... for Enzymes in Industrial Applications , the global market ... $7.1 billion by 2018, registering a five-year compound annual ... to be recorded in the detergent enzyme segment with ... Enzyme technology has influenced almost every sector of industrial ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 3Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 2Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 3Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 3
... N.J., Sept. 30 Informex ( http://www.informex.com ... of high-value chemistry for a broad range of applications, ... will occur on November 9, 2010 in Milwaukee, Wisconsin. ... Informex initiative to act as a knowledge conduit for ...
... Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in... -- COPENHAGEN, September 30, 2010 ... ... (typeof(lpUnit)==,undefined,) var lpUnit=,PRN,; --> ... function(data) { var s = ,; var first_result; // Results are keyed by longUrl, so we need ...
... Offer for Movetis NV and Commencement of... -- DUBLIN, September 30, 2010 ... ... --> ... = ,; var first_result; // Results are keyed by longUrl, so we need to grab the first ...
Cached Biology Technology:Inaugural Pharma Exchange Conference Produced by Informex to Draw Together Milwaukee, Wisconsin Chemical Industry 2Inaugural Pharma Exchange Conference Produced by Informex to Draw Together Milwaukee, Wisconsin Chemical Industry 3Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 2Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 3Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 4Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 5Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 6Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 7Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 8Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 9Positive Top-line Results From Phase III GETGOAL Clinical Trial Using Once-Daily Lixisenatide in Combination With Basal Insulin 10Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 2Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 3Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 4Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 5Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 6Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 7Shire Announces Results of the Tender Offer for Movetis NV and Commencement of Squeeze-Out Tender Period 8
(Date:7/30/2014)... Scientists are searching through a massive collection of ... 50 years ago, and the effort is yielding fresh ... inhabited. , When the collection is fully curated, a ... the largest unbiased Dominican amber collection in the world, ... discovery thus far is that of a pygmy locust, ...
(Date:7/30/2014)... subject of major interest in neuroscience. A large ... distinct stages of Wallerian degeneration: transcription factor activation, ... gene expression responses in the distal segment of ... known, differences in gene expression between the proximal ... and co-workers from Nantong University, China used microarrays ...
(Date:7/30/2014)... analysis of the roughly 3,000 pieces is still in ... the results will be of major significance. "Amazingly often, ... species in Fushun amber that we found in Baltic ... , The Baltic amber comes from the Baltic Sea ... rich in finds are, e.g., the coastal regions of ...
Breaking Biology News(10 mins):Decades-old amber collection offers new views of a lost world 2Chinese mosquitos on the Baltic Sea 2
... invading virus hijacks a cell,s workings by imitating a ... cell signals, the virus destroys a defensive protein designed ... cell cultures, may represent a broader targeting strategy used ... for developing more effective treatments for infectious diseases. ...
... Escherichia coli a bacteria considered the ... is a friend. Cornell University biomolecular engineers have learned ... proteins for making pharmaceuticals cheaper and faster. ( Nature ... Cornell associate professor of chemical and biomolecular engineering, and ...
... (a treatment that involves temporarily inserting and blowing up ... widen it) on veins in the neck and chest ... the venous abnormalities found in those with multiple sclerosis ... the Society of Interventional Radiology,s 37th Annual Scientific Meeting ...
Cached Biology News:To drive infections, a hijacking virus mimics a cell's signaling system 2From scourge to saint: E. coli bacteria becomes a factory - to make cheaper, faster pharmaceuticals 2Interventional radiology: Mitigating symptoms, improving quality of life of MS patients 2Interventional radiology: Mitigating symptoms, improving quality of life of MS patients 3
MOUSE ANTI RAT KAPPA/LAMBDA:HRP Immunogen: MARK-1: Rat kappa light chains (IR202 and IR968)MARL-15: Rat lambda light chains (RH58, IR31)...
Request Info...
SAIVI Alexa Fluor 680 injectable contrast agent *bovine serum albumin*...
RABBIT ANTI QUINOLINIC ACID...
Biology Products: