Navigation Links
Solar cells get a boost from bouncing light
Date:7/29/2011

A new twist on an old solar cell design sends light ricocheting through layers of microscopic spheres, increasing its electricity-generating potential by 26 percent.

By engineering alternating layers of nanometer and micrometer particles, a team of engineers from the University of Minnesota has improved the efficiency of a type of solar cell by as much as 26 percent. These cells, known as dye-sensitized solar cells (DSSC), are made of titanium dioxide (TiO2), a photosensitive material that is less expensive than the more traditional silicon solar cells, which are rapidly approaching the theoretical limit of their efficiency. Current DSSC designs, however, are only about 10 percent efficient. One reason for this low efficiency is that light from the infrared portion of the spectrum is not easily absorbed in the solar cell. The new layered design, as described in the AIP's Journal of Renewable and Sustainable Energy, increases the path of the light through the solar cell and converts more of the electromagnetic spectrum into electricity. The cells consist of micrometer-scale spheres with nanometer pores sandwiched between layers of nanoscale particles. The spheres, which are made of TiO2, act like tightly packed bumpers on a pinball machine, causing photons to bounce around before eventually making their way through the cell. Each time the photon interacts with one of the spheres, a small charge is produced. The interfaces between the layers also help enhance the efficiency by acting like mirrors and keeping the light inside the solar cell where it can be converted to electricity. This strategy to increase light-harvesting efficiency can be easily integrated into current commercial DSSCs.


'/>"/>

Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1

Related biology news :

1. Trustee makes donation to start new solar energy research center at Rensselaer
2. Solar-powered sea-slugs live like plants, prof says
3. A world-first in solar technology unveiled at Concordia University
4. $300,000 donation from BP includes solar vehicle for UH
5. Iowa Power Fund advances researcher’s long quest for efficient solar power
6. Ancient diatoms lead to new technology for solar energy
7. Tufts students host Earth Day with groundbreaking ceremony for solar house
8. Ben-Gurion University research and technology used in new solar energy farm
9. DOE funds bio-inspired solar fuel center at Arizona State
10. Accolade for solar-hydrogen project
11. Flexible solar strips light up campus bus shelter
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2017)... 16, 2017  Veratad Technologies, LLC ( www.veratad.com ), ... and identity verification solutions, announced today they will participate ... May 15 thru May 17, 2017, in ... Trade Center. Identity impacts the lives ... today,s quickly evolving digital world, defining identity is critical ...
(Date:4/18/2017)... a global expert in SoC-based imaging and computing solutions, has developed ... the company,s hybrid codec technology. A demonstration utilizing TeraFaces ® , ... showcased during the upcoming Medtec Japan at Tokyo Big Sight April ... Vegas Convention Center April 24-27. ... Click here for an image of the M820 ...
(Date:4/11/2017)... Research and Markets has announced the addition of the "Global ... ... at a CAGR of 30.37% during the period 2017-2021. ... based on an in-depth market analysis with inputs from industry experts. ... the coming years. The report also includes a discussion of the ...
Breaking Biology News(10 mins):
(Date:9/22/2017)... ... September 22, 2017 , ... ... is now being assessed in clinical trials in the United States. (clinicaltrials.gov : ... your nurse or physician or find your nearest participating clinic here https://factor-therapeutics.com/clinical-trials/ ...
(Date:9/21/2017)... , ... September 21, 2017 , ... Dr. Greg Leyer, ... Vegas, NV on September 27th. His presentation is at 12:10pm in the Probiotics Resource ... to present at SupplySide West and discuss how probiotics have shown impressive data in ...
(Date:9/21/2017)... ... September 21, 2017 , ... Colpitts Clinical has launched the ... includes new features that facilitate streamlined and compliant communication, file sharing and document ... forefront of medical advancements, they rely on efficiencies to help them address the ...
(Date:9/21/2017)... New Jersey (PRWEB) , ... September 21, 2017 ... ... highly-regulated pharmaceutical and clinical research sector professionals, has announced the addition of 5 ... Part 11 training - Compliance with Regulation 21 CFR Part 11 on ...
Breaking Biology Technology: