Navigation Links
Black silicon can take efficiency of solar cells to new levels
Date:1/25/2013

This press release is available in German.

Scientists at Aalto University, Finland, have demonstrated results that show a huge improvement in the light absorption and the surface passivation on highly absorbing silicon nanostructures. This has been achieved by applying atomic layer coating. The results advance the development of devices that require high sensitivity light response such as high efficiency solar cells.

This method provides extremely good surface passivation. Simultaneously, it reduces the reflectance further at all wavelengths. These results are very promising considering the use of black silicon (b-Si) surfaces on solar cells to increase the efficiency to completely new levels, tells Pivikki Repo, a researcher at Aalto University.

More effective surface passivation methods than those used in the past have been needed to make black silicon a viable material for commercial applications. Good surface passivation is crucial in photonic applications such as solar cells. So far, the poor charge carrier transport properties attributed to nanostructured surfaces have been more detrimental for the final device operation than the gain obtained from the reduced reflectance.

Black silicon can also be used in other technologies than solar cells. Numerous applications suggested for b-Si include drug analysis.

Black silicon (b-Si) has been a subject of great interest in various fields including photovoltaics for its ability to reduce the surface reflectance even below 1 per cent. However, many b-Si applications - especially solar cells - suffer from increased surface recombination resulting in poor spectral response. This is particularly problematic at short wavelengths.


'/>"/>
Contact: Pivikki Repo
paivikki.repo@aalto.fi
358-504-361-156
Aalto University
Source:Eurekalert  

Page: 1

Related biology news :

1. Clamorous city blackbirds
2. Biologists unlock black box to underground world
3. Strength training improves vascular function in young black men
4. Black piranha, megapiranha have most powerful bites of fish living or extinct, finds GW researcher
5. The dark side of kerosene lamps: High black-carbon emissions
6. Study IDs kerosene lamps as big source of black carbon
7. Le Rouge et le Noir: Where the black dahlia gets its color
8. Lack of vitamin D contributes to pain in black Americans with knee osteoarthritis
9. Scientists find aphid resistance in black raspberry
10. Human impact felt on Black Sea long before industrial era
11. Black belts white matter shows how a powerful punch comes from the brain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Black silicon can take efficiency of solar cells to new levels
(Date:2/21/2017)... LONDON , February 21, 2017 ... um 70 Millionen US-Dollar wachsen. Nach einem Gespräch mit mehr ... es einige Hindernisse zu überwinden gilt, um diese Prognose ... ... unter anderem die Mobilisierung der finanziellen Mittel für die ...
(Date:2/14/2017)... N.C. , Feb. 14, 2017  Wake Forest ... M.D., as its new chief executive officer (CEO). Freischlag ... CEO John D. McConnell , M.D., who last ... position at the Medical Center, after leading it since ... the full scope of Wake Forest Baptist,s academic health ...
(Date:2/13/2017)... Former 9/11 Commission border counsel and Special ... Kephart of Identity Strategy Partners, LLP, today releases ... "Executive Order: Protecting the Nation From Foreign Terrorist Entry ... "As President Trump,s ,Travel Ban, Executive Order gains more ... the travel ban, it is important that our national ...
Breaking Biology News(10 mins):
(Date:3/22/2017)... 22, 2017  RXi Pharmaceuticals Corporation (NASDAQ: RXII), ... address significant unmet medical needs, today announced ... will present at the 5th Annual Cancer BioPartnering ... platform to present to and meet with thought ... biotech companies as well as institutional investors. This ...
(Date:3/20/2017)... ... , ... SSCI and Whitehouse Laboratories, divisions of Albany Molecular Research, Inc, are ... the Parenteral Drug Association (PDA), the New York Interphex Show will open on March ... more than 625 exhibitors, the educational and networking opportunities are extremely valuable. INTERPHEX is ...
(Date:3/20/2017)... ... March 20, 2017 , ... HOLLOWAY AMERICA, a leading manufacturer ... will debut a brand new pressure vessel, the intelliVessel™, at INTERPHEX 2017 at ... touch screen panel and features other revolutionary operations that promote safer, more efficient ...
(Date:3/20/2017)... Linda, CA (PRWEB) , ... March 20, 2017 ... ... and require expensive and laborious sample preparation methods in order to reduce the ... often underappreciated outside of the area of elemental analysis. , This presentation ...
Breaking Biology Technology: