Navigation Links
Zinc oxide gives green shine to new photoconductors
Date:3/18/2009

rthwestern. "This comes from the material's highly ordered architecture, which helps transport the electrons efficiently."

The material has a detectivity level comparable to amorphous silicon, which is widely used in large-area electronics applications, such as liquid-crystal displays (LCDs).

Stupp and his research team designed a novel nanoscale architecture that places the inorganic component (zinc oxide) right next to the organic component, with this pattern alternating over and over, like pages in a book. The pages are packed very tightly.

Each organic page -- which can be one of thousands of different types of molecules -- absorbs light, and an electron is transferred directly to the zinc oxide page, generating current. This works -- and works extremely efficiently -- because the organic and inorganic components are so close together.

To build a book, the researchers grow a precursor material to zinc oxide in the presence of self-assembling organic molecules. (The material can be grown on any metallic or conducting substrate.) The precursor, zinc hydroxide, is formed using electrodeposition and then thermally converted to zinc oxide. Each zinc oxide page is a nanometer thick while the organic page is one to two nanometers thick, depending on the molecule being used.

In the Nature Materials paper the researchers demonstrate that they can build orderly books with high detectivity. But in order for their materials to be used for solar energy, Stupp says, they must build entire "macroscopic libraries" of these books. And, like the books, the libraries must be highly ordered.

"Right now our library is a little disordered, but we are working on optimizing our materials for use in solar energy devices," said Stupp, director of the Institute for BioNanotechnology in Medicine at Northwestern.


'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Gold-palladium nanoparticles achieve greener, smarter production of hydrogen peroxide
2. New small-scale generator produces alternating current by stretching zinc oxide wires
3. Particle Sciences sells T-COTE(R) Line of Microfine Titanium Dioxides to Sensient
4. New graphene-based material clarifies graphite oxide chemistry
5. ActivBiotics Receives FDA Orphan Drug Designation for Superoxide Dismutase Mimetic, M40403, in Oral Mucositis of Cancer
6. Chemists measure copper levels in zinc oxide nanowires
7. National Association of Emergency Medical Technicians (NAEMT) Supports Prehospital Screening for Carbon Monoxide in the Blood
8. International Association of Fire Fighters (IAFF) Advocates Screening Fire Fighters for Carbon Monoxide Poisoning Using Pulse CO-Oximetry
9. PharmaNet Development Group Gives Notice of Anticipated Fundamental Change and Merger to Holders of Its Convertible Notes
10. M2S Expert gives address "Applying the Principles of Six Sigma in the Imaging Core Lab" at Imaging for Clinical Trials conference
11. New Health Retreat Gives a Fresh Attitude Towards Disease Prevention
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... at USC have developed a new microscopy technology ... living animals at higher-than-ever resolution. , Dubbed "Complementation ... imaging resolutions that are an order of magnitude ... into the behavior of biomolecules at the nanometer ... 18 by Nature Communications , the researchers ...
(Date:9/18/2014)... quest for the ultimate memory device for computing may ... The City College of New York led by chemist ... both magnetic and ferroelectric properties. , Combining both properties ... occur between them and for the devices that might ... these two properties in a single material, however, has ...
(Date:9/18/2014)... 18, 2014 Pipette.com announces brand ... Socorex, Capp, and AccuPet brand of pipettes. Micropipettes ... uL or less and are a great tool ... , The micropipette promotions were designed to ... alternative products to help customers find the right ...
(Date:9/18/2014)... New York, NY (PRWEB) September 18, 2014 ... has completed negotiations with Salem Realty Group and has ... and development space within the Salem Executive Complex adjacent ... cutting ceremony was held on Friday September 5th. Whitehouse ... to refit the entire space specifically for package testing. ...
Breaking Biology Technology:Scientists pioneer microscopy technique that yields fresh data on muscular dystrophy 2Oxides discovered by CCNY team could advance memory devices 2Major Pipette Distributor Pipette.com Announces Promotions on Sartorius/Biohit, Socorex, Capp, and AccuPet Micropipettes 2Major Pipette Distributor Pipette.com Announces Promotions on Sartorius/Biohit, Socorex, Capp, and AccuPet Micropipettes 3Whitehouse Labs Announces Package Testing Laboratory Expansion 2Whitehouse Labs Announces Package Testing Laboratory Expansion 3Whitehouse Labs Announces Package Testing Laboratory Expansion 4
... JERSEY CITY, N.J., Jan. 18, 2011 Intrasphere ... consulting and solutions firm that provides services to ... become a Gold level member of Oracle PartnerNetwork ... Argus Safety Suite. As a result of this ...
... , This release is available in German ... chemist Professor Ralph G. Nuzzo paved the way for use ... imaginable today without that innovation. Professor Nuzzo is now honored ... The award includes guest visits to the Institute of Functional ...
... Cancer Research Foundation ("KCRF") announces research conducted in the ... Cancer Center has been published in the December 2010 ... Clinical Cancer Research journal.  The manuscript illustrates how ... prove that radiofrequency fields can treat pancreatic tumors, which ...
Cached Biology Technology:Intrasphere Technologies Achieves Oracle PartnerNetwork Specialization for Oracle Argus Safety Suite 2Intrasphere Technologies Achieves Oracle PartnerNetwork Specialization for Oracle Argus Safety Suite 3New impulses for surface research 2Targeted Gold Nanoparticles and Noninvasive Radio Fields Attacking One of the Deadliest and Least Curable Types of Cancer: Pancreatic Carcinoma 2
(Date:9/17/2014)... After decades of decline, grasses have returned to some ... the marsh in those places seems healthy again, but ... of the marsh coastal protection remains diminished. ... function hasn,t come back," said ecologist Mark Bertness, professor ... study in the journal Biological Conservation . "The ...
(Date:9/17/2014)... forms a new crime unit designed to fight food ... over horse meat being passed off as beef ... meat adulteration. They describe their approach, which represents a ... of Agricultural and Food Chemistry . , Hans-Ulrich Humpf ... global economic problem. But they also say that adding, ...
(Date:9/17/2014)... including MRSA and MSSA could be curbed by ... the scaly surface of shark skin, according to ... Antimicrobial Resistance and Infection Control . , The ... spread of human disease bacteria through touching, sneezes ... arrangement of ridges formulated to resemble shark skin. ...
Breaking Biology News(10 mins):Cape Cod saltmarsh recovery looks good, falls short 2Cape Cod saltmarsh recovery looks good, falls short 3Sharks' skin has teeth in the fight against hospital superbugs 2
... saying goes: "Don,t judge a book by its cover." Well, ... dolphins are the most common and well-known of their kind ... dolphin might look similar to another, when you take a ... are differences. In fact, a recently published study in the ...
... Institute for Clinical Research, Inc., a company providing science-driven early ... appointment of Dan Bradbury , Managing Member of ... Board of Directors.  Mr. Bradbury joins Profil Institute,s current ... research executive and former Senior Vice President and Head ...
... cats really had nine lives, one reason might be to ... feline health. Yunjeong Kim, a research assistant professor in ... developed a research approach that tackles two deadly infectious feline ... by a $156,342 award from the Morris Animal Foundation. ...
Cached Biology News:Dolphin genetic study provides revelations 2Profil Institute Appoints Dan Bradbury, former Amylin Pharmaceutical CEO, to Board of Directors 2Profil Institute Appoints Dan Bradbury, former Amylin Pharmaceutical CEO, to Board of Directors 3College of Veterinary Medicine researcher doubles down on deadly, infectious cat diseases 2College of Veterinary Medicine researcher doubles down on deadly, infectious cat diseases 3
... Kit is designed for concentration and ... samples. Proteomics sample analysis is often ... impurities such as buffers, salts and ... interfere with electrophoretic separations or enzymatic ...
... activated carrier proteins to simplify the ... Activated Carrier Proteins are commonly used ... a heterobifunctional cross-linker (Sulfo-SMCC). This activation ... protein. Thus allowing the maleimide-activated ...
... allows for rapid, convenient, and efficient native ... process utilizes a spin column to make ... concentration of proteins which were electro-eluted in ... ion exchangers, offering high binding capacity fo ...
... clear polystyrene with frosted labeling surfaces, ... cell counting. 100% integrity tested. Linkage: ... product number, created to easily match ... availability yet, please order under the ...
Biology Products: