Navigation Links
Nanostructure boosts efficiency in energy transport
Date:3/3/2009

CHESTNUT HILL, MA (March 3, 2009) Overcoming a critical conductivity challenge to clean energy technologies, Boston College researchers have developed a titanium nanostructure that provides an expanded surface area and demonstrates significantly greater efficiency in the transport of electrons.

The challenge has vexed researchers pursuing solar panels thick enough to absorb sunlight, yet thin enough to collect and transport electrons with minimal energy loss. Similarly, the relatively new science of water splitting requires capturing energy within semiconductor materials and then efficiently transporting charges ultimately used to generate hydrogen.

Boston College Asst. Prof of Chemistry Dunwei Wang and members of his lab found that incorporating two titanium-based semiconductors into a nano-scale structure improved the efficiency of power-collecting efforts by approximately 33 percent, the team reported in the online edition of the Journal of the American Chemical Society.

The team achieved a peak conversion efficiency of 16.7 percent under ultraviolet light, reported Wang and his co-authors, BC graduate students Yongjing Lin and Sa Zhou, post doctoral researcher Xiaohua Liu and undergraduate Stafford Sheehan. That compared to an efficiency of 12 percent from a structure composed only of titanium dioxide (TiO2).

Wang said the efficiency gains within the novel material can serve so-called water-splitting, where semiconductor catalysts have been shown to separate and store hydrogen and oxygen gases.

"The current challenge in splitting water involves how best to capture photons within the semiconductor material and then grab and transport them to produce hydrogen," Wang says. "For practical water splitting, you want to generate oxygen and hydrogen separately. For this, good electrical conductivity is of great importance because it allows you to collect electrons in the oxygen-generation region and transpo
'/>"/>

Contact: Ed Hayward
ed.hayward@bc.edu
617-552-4826
Boston College
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Two nanostructures are better than one
2. NIST team develops novel method for nanostructured polymer thin films
3. Smart insulin nanostructures pass feasibility test, UT study reports
4. New nanostructured thin film shows promise for efficient solar energy conversion
5. UC San Diego nanostructures will raise thin-film solar cell efficiency
6. In novel playground, metals are formed into porous nanostructures
7. New process creates 3-D nanostructures with magnetic materials
8. Murad Boosts Skin Immunity With the New Murad(R) Professional Line
9. New Scandinavian collaboration boosts nanotech development
10. Cystic Fibrosis: License Agreement Boosts Development of Therapy Against Lung Infections
11. Genzyme Boosts Quality Using Dyadem Quality Lifecycle Management
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Nanostructure boosts efficiency in energy transport
(Date:9/30/2014)... in German . ... (TUM) have demonstrated a new kind of building block ... computer chips could be based on three-dimensional arrangements of ... technology of the semiconductor industry CMOS fabrication of ... and collaborators at the University of Notre Dame are ...
(Date:9/30/2014)... , Sept. 30, 2014 Nematicide ... kill nematodes. Nematodes are microscopic parasitic roundworms, found ... and inside other plants and animals. Nematicides have ... or other properties promoting migration through the soil. ... than 1,000 plant-parasitic nematodes. With more than 10,000 ...
(Date:9/30/2014)... 30, 2014 CORD:USE Cord Blood Bank – ... it has entered into an Equity and Exclusive Services ... licensed a series of patented technologies for the isolation of ... applications.  Tianhe is performing Phase I/II clinical trials in ... using Tianhe,s Stem Cell Educator Therapy showing ...
(Date:9/30/2014)... and ROCKVILLE, Md., Sept. 30, 2014 ... partnership focusing on commercializing market-relevant biohealth innovations and increasing ... , announced today that venture capitalist, Tania ... a strategic advisor. Dr. Fernandez will be a member ... Fund, which will provide up to $50 million in ...
Breaking Biology Technology:A new dimension for integrated circuits: 3-D nanomagnetic logic 2A new dimension for integrated circuits: 3-D nanomagnetic logic 3Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 4Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2
... healthcare decision makers met to discuss how information ... and improve the delivery of healthcare. Meanwhile at ... the Governors Business Plan Contest. On another note, ... behind the national average in the percentage of ...
... As the medical business struggles with the problems of clinical ... problems is through the use of war-game exercises, in which ... real world can be simulated in the course of hours ... with before they can pose a real threat. , ,While ...
... a supplier of high-performance networking solutions for the Apple Macintosh ... to ship in the third quarter of 2005, that could ... ,Blaze will make it easier for Mac OS X ... gigabit Ethernet cards. It will have a cost of ...
Cached Biology Technology:Medical simulations identify potential problems before they can pose a real threat 2Medical simulations identify potential problems before they can pose a real threat 3Small Tree is streamlining digital video editing 2Small Tree is streamlining digital video editing 3
(Date:9/30/2014)... Pollution in urban and farm runoff in Hawaii is ... finds. , The study, published Tuesday in the ... in the runoff ends up in algae that the ... animals, eyes, flippers and internal organs. , Scientists at ... Oceanic and Atmospheric Administration (NOAA) conducted the study to ...
(Date:9/30/2014)... getting pregnanteven with IVF? Here,s some hope: A new ... The FASEB Journal , explains how scientists ... as PAWP, which induced embryo development in human and ... development by the sperm cell during fertilization. , "We ... major paradigm shift in our understanding of human fertilization ...
(Date:9/30/2014)... 2014) People who suffer from asthma may think ... their asthma besides properly taking medications and avoiding allergic ... the Annals of Allergy, Asthma and Immunology , ... Asthma and Immunology (ACAAI), asthma sufferers can learn lessons ... woman described in the Annals article improved her asthma ...
Breaking Biology News(10 mins):Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3Synthetic sperm protein raises the chance for successful in vitro fertilization 2Asthma symptoms kicking up? Check your exposure to air pollution 2
... Tiny particles one-billionth of a meter in size can ... kill brain cancer. What's more, these nanoparticles can be ... destroy them, according to researchers at the University of ... called Photofrin along with iron oxide into nanoparticles that ...
... Swedish amateur boxers suggests that they have higher levels ... days following a bout, indicating injuries to neurons and ... report in the September issue of Archives of Neurology, ... of professional boxers develop chronic traumatic brain injury, according ...
... "the windows of the soul," corneas are the panes in ... They also act as the eye's outermost lens, contributing up ... 11 in San Francisco at the annual meeting of the ... a novel biomimetic material that's finding its way into artificial ...
Cached Biology News:U-M researchers use nanoparticles to target brain cancer 2U-M researchers use nanoparticles to target brain cancer 3Amateur boxing linked to brain cell injury 2An artificial cornea is in sight, thanks to biomimetic hydrogels 2An artificial cornea is in sight, thanks to biomimetic hydrogels 3An artificial cornea is in sight, thanks to biomimetic hydrogels 4
...
... Triple-angle light scattering detector for ambient ... signal processing hardware for two external ... detectors. Also contains an analog output ... to strip chart recorders. Includes an ...
...
...
Biology Products: