Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > News > Boosting solar-cell efficiency with quantum-dot-based nanotechnology

February 15th, 2010

Boosting solar-cell efficiency with quantum-dot-based nanotechnology

Abstract:
Inserting indium arsenide quantum dots into crystalline III-V semiconductor-based photovoltaics results in both enhanced short-circuit current and improved efficiency.

The Rochester Institute of Technology's NanoPower Research Laboratories (NPRL) have made significant advances in this area by developing new nanomaterials and devices. We have engineered III-V-type solar cells to take advantage of the extended absorption spectrum of lower-bandgap heterostructures (such as QDs) inserted into the current-limiting junction of an MJSC. The larger absorption spectrum of the nanostructures enhances the overall short-circuit current and global efficiency of the cell. Models of an indium gallium phosphide (InGaP)/indium gallium arsenide (InGaAs)/germanium (Ge) triple-junction solar cell, in which QDs extend the middle junction's absorption spectrum, indicate that we could raise the theoretical limiting efficiency to 47% under one sun illumination. These devices may also have additional benefits, such as enhanced radiation tolerance and temperature coefficients.

Source:
spie.org

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

NPRL

Related News Press

News and information

The first PE blown films with nanotubes hit the Chinese market April 26th, 2018

Watching nanomaterials form in 4D: Novel technology allows researchers to see dynamic reactions as they happen at the nanoscale April 26th, 2018

The dispute about the origins of terahertz photoresponse in graphene results in a draw April 26th, 2018

Nuclear radiation detecting device could lead to new homeland security tool: New device can detect gamma rays and identify radioactive isotopes April 25th, 2018

Possible Futures

Watching nanomaterials form in 4D: Novel technology allows researchers to see dynamic reactions as they happen at the nanoscale April 26th, 2018

The dispute about the origins of terahertz photoresponse in graphene results in a draw April 26th, 2018

Graphene origami as a mechanically tunable plasmonic structure for infrared detection April 25th, 2018

Nuclear radiation detecting device could lead to new homeland security tool: New device can detect gamma rays and identify radioactive isotopes April 25th, 2018

Announcements

The first PE blown films with nanotubes hit the Chinese market April 26th, 2018

Arbe Robotics Selects GLOBALFOUNDRIES for its High-Resolution Imaging Radar to Enable Safety for Autonomous Cars: Arbe Robotics’ proprietary chipset leverages GF’s 22FDX® technology to deliver industry’s first real-time 4D imaging radar for level 4 and 5 autonomous driving April 26th, 2018

Watching nanomaterials form in 4D: Novel technology allows researchers to see dynamic reactions as they happen at the nanoscale April 26th, 2018

The dispute about the origins of terahertz photoresponse in graphene results in a draw April 26th, 2018

Energy

Organic solar cells reach record efficiency, benchmark for commercialization April 23rd, 2018

Psst! A whispering gallery for light boosts solar cells April 14th, 2018

High efficiency solar power conversion allowed by a novel composite material: A composite thin film developed at INRS improves significantly solar cells' power conversion efficiency April 10th, 2018

Light 'relaxes' crystal to boost solar cell efficiency: Rice, Los Alamos discovery advances case for perovskite-based solar cells April 6th, 2018

Solar/Photovoltaic

Organic solar cells reach record efficiency, benchmark for commercialization April 23rd, 2018

Salt boosts creation of 2-D materials: Rice University scientists show how salt lowers reaction temperatures to make novel materials April 18th, 2018

Psst! A whispering gallery for light boosts solar cells April 14th, 2018

High efficiency solar power conversion allowed by a novel composite material: A composite thin film developed at INRS improves significantly solar cells' power conversion efficiency April 10th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project