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:3/23/2017)... , Mar. 23, 2017 Research and Markets ... Market Analysis & Trends - Industry Forecast to 2025" report ... ... at a CAGR of around 8.8% over the next decade to ... report analyzes the market estimates and forecasts for all the given ...
(Date:3/20/2017)... PMD Healthcare announces the release of its ... System (WMS), a remote, real-time lung health monitoring and ... is a Medical Device, Digital Health, and Chronic Care ... innovative solutions that empower people to improve their healthcare ... developed the first ever personal spirometer, Spiro PD, which ...
(Date:3/7/2017)... 7, 2017 Brandwatch , the leading social intelligence ... Prince,s Trust to uncover insights to support its reporting, help ... The UK,s leading youth charity will be using Brandwatch Analytics ... get a better understanding of the topics and issues that are ... ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... 28, 2017  The National Pharmaceutical Council (NPC) today ... policy research organization as its newest member. David ... ( North America ), will serve as ... "We,re pleased to have Ipsen and Dr. Cox ... Leonard . "We welcome their insights in helping us ...
(Date:3/28/2017)... ... March 28, 2017 , ... Currently symptomatic therapies for Parkinson’s ... study published in STEM CELLS suggests that human neural stem cell (hNSC) transplantation ... produce more neural cells. , Strategies involving transplantation of these cells into ...
(Date:3/28/2017)... , ... March 28, 2017 , ... ... as Chief Executive Officer with Avomeen Analytical Services. Harvill is a distinguished life ... operations. , Avomeen is a leader in a wide range of services ...
(Date:3/27/2017)... Infectex Ltd., a Russian portfolio company of Maxwell Biotech Venture Fund (MBVF), today ... standard drug therapy regimen in patients with multidrug-resistant pulmonary tuberculosis (MDR-TB). SQ109 is a ... ) and the US National Institutes of Health. Continue ... ... ...
Breaking Biology Technology: