Navigation Links
Tiny structure gives big boost to solar power
Date:12/6/2012

r cell uses an incredibly fine metal mesh: the metal is 30 nanometers thick, and each hole is 175 nanometers in diameter and 25 nanometers apart. (A nanometer is a billionth of a meter and about one hundred-thousandth of human hair). This mesh replaces the conventional window layer typically made of a material called indium-tin-oxide (ITO).

The mesh window layer is placed very close to the bottom layer of the sandwich, the same metal film used in conventional solar cells. In between the two metal sheets is a thin strip of semiconducting material used in solar panels. It can be any type silicon, plastic or gallium arsenide although Chou's team used an 85-nanometer-thick plastic.

The solar cell's features the spacing of the mesh, the thickness of the sandwich, the diameter of the holes are all smaller than the wavelength of the light being collected. This is critical because light behaves in very unusual ways in sub-wavelength structures. Chou's team discovered that using these subwavelength structures allowed them to create a trap in which light enters, with almost no reflection, and does not leave.

"It is like a black hole for light," Chou said. "It traps it."

The team calls the system a "plasmonic cavity with subwavelength hole array" or PlaCSH. Photos of the surface of the PlaCSH solar cells demonstrate this light-absorbing effect: under sunlight, a standard solar power cell looks tinted in color due to light reflecting from its surface, but the PlaCSH looks deep black because of the extremely low light reflection.

The researchers expected an increase in efficiency from the technique, "but clearly the increase we found was beyond our expectations," Chou said.

Chou and graduate student Wei Ding reported their findings in the j
'/>"/>

Contact: John Sullivan
js29@princeton.edu
609-258-4597
Princeton University, Engineering School
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. China Cord Blood Corporation to Further Consolidate its Corporate Structure
2. Harvards Wyss Institute team creates versatile 3d nanostructures using DNA bricks
3. Manufacturing complex 3-D metallic structures at nanoscale made possible
4. Heptares Solves First Family B GPCR Structure
5. UPMC Invests in Intelligent Infrastructure with IBM to Support Vision of Personalized Medicine
6. Entropy can lead to order, paving the route to nanostructures
7. Modifying surfaces by means of nanostructured reliefs to prevent the spread of bacteria
8. UMD creates new tech for complex micro structures for use in sensors & other apps
9. Receptos Co-Publishes Highest Resolution G-Protein Coupled Receptor Structure to Date in Science
10. Cord Blood America Announces Agreement To Restructure Debt
11. X-ray vision exposes aerosol structures
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Tiny structure gives big boost to solar power
(Date:12/17/2014)... , Dec. 17, 2014  United Therapeutics Corporation ... executive promotions as well as changes to Martine ... Executive Promotions United Therapeutics announced the ... and Co-Chief Executive Officer and David Zaccardelli , ... In connection with these promotions, Dr. Rothblatt,s title will ...
(Date:12/17/2014)... 2014   Synageva BioPharma Corp. (NASDAQ: ... for rare disorders, announced today its presentation at the ... San Francisco, CA. ... will present on Monday, January 12, 2015, at 9:00 ... webcast live and may be accessed from the "Webcasts ...
(Date:12/15/2014)... 2014 Organovo Holdings, Inc. (NYSE MKT: ... delivering breakthrough 3D bioprinting technology,  today celebrated continued ... its exVive3D TM Human Liver Tissue.  The ... commercial release on November 18, has been recognized ... awards for innovation. Most recently, on ...
(Date:12/15/2014)... , Dec. 15, 2014  Ascendis Pharma ... TransCon technology to address significant unmet medical needs, ... ongoing Phase 2 pediatric study to evaluate once-weekly ... deficiency, or GHD.  This interim analysis consists of ... total enrollment in the study, completing all six ...
Breaking Biology Technology:United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 3United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 4Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 2Organovo Celebrates a Positive 2014 Reception of its exVive3DTM Human Liver Tissue Product 3Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4
... Inc. (Nasdaq:,NUVA), a medical device company focused on developing ... today,details relating to its fourth quarter and full year ... 19, 2008, after,the close of the market., NuVasive ... 2008 at,5:30 p.m. ET / 2:30 p.m. PT to ...
... of Directors of US,Oncology Holdings, Inc. and its wholly ... "Company") announced that, effective,February 1, 2008, Dale Ross will ... and will continue as the Executive Chairman of the,Company. ... Company,s,President and CEO. The CEO transition is a planned ...
... investors to state, TOPEKA, Kan., Jan. 25 ... a "Come Home to Kansas" initiative that,focuses on ... Kansas. Partners in this project include the Kansas,Department ... Organization and the KTEC PIPELINE., This initiative ...
Cached Biology Technology:NuVasive Announces Webcast and Conference Call of Fourth Quarter and Full Year 2007 Results 2NuVasive Announces Webcast and Conference Call of Fourth Quarter and Full Year 2007 Results 3US Oncology Announces Realignment of Executive Team 2US Oncology Announces Realignment of Executive Team 3'Come Home to Kansas' Announced by KTEC 2
(Date:12/17/2014)... , Dec. 16, 2014 Research and Markets ... addition of the "Global Chemical Sensor Market ... http://photos.prnewswire.com/prnh/20130307/600769 One ... increasing demand for medical sensors in biomedical applications. ... for quick and correct diagnosis during surgical procedures. ...
(Date:12/15/2014)... , Dec. 12, 2014 Research and Markets ... addition of the "Global Facial Recognition Market ... http://photos.prnewswire.com/prnh/20130307/600769 Facial ... of individuals. Facial recognition system measures the overall ... jaw edges, mouth, and the distance between eyes. ...
(Date:12/11/2014)... 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced the addition ... report to their offering. ... the adoption of multimodal biometric systems. Multimodal biometric ... individual for verification and identification purposes. This helps ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... AKRON, Ohio, June 16, 2011 Leaders within the ... to apply "Value-driven Engineering" (VdE) to enhance the development ... efficiency and reduced complexity.  VdE will become a key ... economy," maintain global competitiveness, and assure access to device ...
... Robert Blelloch, MD, PhD, has received the 2011 Outstanding Young ... for his pioneering research on the role of molecular tools ... Blelloch will present his research today, June 15, 2011, at ... p.m. EDT). He will participate in a press briefing at ...
... new Baylor University study has found that sunlight decreases the ... the southern United States every year. While golden algae ... Texas rivers and lakes, including Lake Whitney and Lake Waco ... believe that several environmental factors influence toxin production, but new ...
Cached Biology News:U.S. Biomedical Leaders Present a New National Device Innovation Strategy Based on "Value-driven Engineering" 2U.S. Biomedical Leaders Present a New National Device Innovation Strategy Based on "Value-driven Engineering" 3U.S. Biomedical Leaders Present a New National Device Innovation Strategy Based on "Value-driven Engineering" 4UCSF stem cell, cancer scientist honored for pioneering studies 2UCSF stem cell, cancer scientist honored for pioneering studies 3
Anti-Phospho-JKK/SEK1/MKK4 pAb Description: 100 g rabbit polyclonal antibody. Reacts with human/mouse/rat. Tested in WB. Research Focus: signal transduction Storage: -20C Shipping Tem...
...
... Concentrated x 10 This pH 9.9 ... prior to immunohistochemical staining procedures. It is ... mounted on glass slides. For particular antigens, ... especially effective. It should be noted that ...
... SeMet White to off-white solid. ... ≥98% by HPLC. Soluble in H 2 ... prior to use. RTECS EK7713840, CAS 3211-76-5, ... 13, 8515.Jornot, L., and Junod, A.F. ...
Biology Products: