Navigation Links
'Swiss cheese' design enables thin film silicon solar cells with potential for higher efficiencies
Date:5/6/2011

College Park, Md. (May 6, 2011) A bold new design for thin film solar cells that requires significantly less silicon and may boost their efficiency is the result of an industry/academia collaboration between Oerlikon Solar in Switzerland and the Institute of Physics' photovoltaic group at the Academy of Sciences of the Czech Republic.

One long-term option for low-cost, high-yield industrial production of solar panels from abundant raw materials can be found in amorphous silicon solar cells and microcrystalline silicon tandem cells (a.k.a. Micromorph)providing an energy payback within a year.

A drawback to these cells, however, is that the stable panel efficiency is less than the efficiency of presently dominate crystalline wafer-based silicon, explains Milan Vanecek, who heads the photovoltaic group at the Institute of Physics in Prague.

"To make amorphous and microcrystalline silicon cells more stable they're required to be very thin because of tight spacing between electrical contacts, and the resulting optical absorption isn't sufficient," he notes. "They're basically planar devices. Amorphous silicon has a thickness of 200 to 300 nanometers, while microcrystalline silicon is thicker than 1 micrometer."

The team's new design focuses on optically thick cells that are strongly absorbing, while the distance between the electrodes remains very tight. They describe their design in the American Institute of Physics' journal Applied Physics Letters.

"Our new 3D design of solar cells relies on the mature, robust absorber deposition technology of plasma-enhanced chemical vapor deposition, which is a technology already used for amorphous silicon-based electronics produced for liquid crystal displays. We just added a new nanostructured substrate for the deposition of the solar cell," Vanecek says.

This nanostructured substrate consists of an array of zinc oxide (ZnO) nanocolumns or, alternatively, from a "Swiss cheese" honeycomb array of micro-holes or nano-holes etched into the transparent conductive oxide layer (ZnO) (See Figure).

"This latter approach proved successful for solar cell deposition," Vanecek elaborates. "The potential of these efficiencies is estimated within the range of present multicrystalline wafer solar cells, which dominate solar cell industrial production. And the significantly lower cost of Micromorph panels, with the same panel efficiency as multicrystalline silicon panels (12 to 16 percent), could boost its industrial-scale production."

The next step is a further optimization to continue improving efficiency.


'/>"/>

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

Related biology technology :

1. A Swiss Team Uses Transcranial MR-Guided Focused Ultrasound to Treat Patients With Functional Brain Disorders
2. Jina Ventures Advises Swiss Pharma Contract on Strategic Sale to Covance Inc
3. Covance Increases Early Clinical Footprint in Europe with Acquisition of Swiss-Based Early Clinical Development Site
4. 25 Short Films About Top-Level Research on swissinfo.ch
5. Open-source software designed to minimize synthetic biology risks
6. New Biomarkers Study Could Lead to Better Malaria Vaccine Design
7. Perceptive Informatics Global Survey Results Show Growing Industry Interest in Implementing Adaptive Trial Designs
8. Magellan Biosciences and Miacom Diagnostics Team Up to Enable Faster, Easier Identification of Pathogens as Part of Magellans End-to-End Suite of Microbiology Products Designed to Streamline Lab Workflow and Enable Better Treatment Decisions
9. New CDC Guidelines for Prevention of Intravascular Catheter-Associated Infections Designate Chlorhexidine Gluconate-Impregnated Sponge as a Category 1B Recommendation Exclusively Based on Evidence Related to BIOPATCH® Protective Disk With CHG
10. VENENUM Biodesign to Exhibit at SBS
11. 3-D printing method advances electrically small antenna design
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Swiss cheese' design enables thin film silicon solar cells with potential for higher efficiencies
(Date:10/9/2017)... SAN DIEGO , Oct. 9, 2017 /PRNewswire/ ... a biological mechanism by which its ProCell stem ... of critical limb ischemia.  The Company, demonstrated that ... the amount of limbs saved as compared to ... of the molecule HGF resulted in reduction of ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... of medical marijuana products targeting the needs of consumers who are incorporating medical ... takes place in Phoenix, Arizona. , As operators of two successful Valley dispensaries, ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... genomic technologies, launched its ProxiMeta™ Hi-C metagenome deconvolution product, featuring the first ... accompanying cloud-based bioinformatics software to perform Hi-C metagenome deconvolution using their own ...
(Date:10/6/2017)... D.C. (PRWEB) , ... October 06, 2017 , ... ... will host a lunch discussion and webinar on INSIGhT, the first-ever adaptive clinical ... Principal Investigator, Dana-Farber Cancer Institute. The event is free and open to the ...
Breaking Biology Technology:
(Date:4/13/2017)... According to a new market research report "Consumer IAM Market by Solution ... Authentication Type, Deployment Mode, Vertical, and Region - Global Forecast to 2022", ... 14.30 Billion in 2017 to USD 31.75 Billion by 2022, at a ... ... MarketsandMarkets Logo ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... grow at a CAGR of 30.37% during the period 2017-2021. ... prepared based on an in-depth market analysis with inputs from industry ... over the coming years. The report also includes a discussion of ...
(Date:4/11/2017)... , April 11, 2017 NXT-ID, Inc. ... technology company, announces the appointment of independent Directors Mr. ... to its Board of Directors, furthering the company,s corporate governance ... Gino ... we look forward to their guidance and benefiting from their ...
Breaking Biology News(10 mins):