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:6/19/2017)... PA (PRWEB) , ... June 19, 2017 , ... ... companies for over 50 years. One of the biggest challenges faced by life sciences, ... firm’s regulatory affairs services team is Kati Abraham , who is well known ...
(Date:6/16/2017)... Massachusetts (PRWEB) , ... June 16, 2017 , ... ... Data management and analytics solutions, today announced that its Anzo Smart Data Lake® ... and Semantic Technology Solution’ category for the 2017 Software & Information Industry Association ...
(Date:6/15/2017)... ... June 15, 2017 , ... Cybrexa Therapeutics, ... B round of financing in the amount of $6 million. An investment vehicle ... in the round. , The Series B funding will enable Cybrexa to complete ...
(Date:6/15/2017)... SEATTLE, Wash. (PRWEB) , ... June 15, 2017 ... ... Ph.D., global business director for DuPont Biofuels, will be speaking at Bloomberg’s ... PST. Koninckx will join other leading environmental and sustainability officials on a panel ...
Breaking Biology Technology:
(Date:3/28/2017)... PUNE, India , March 28, 2017 ... (Analog, IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), ... Maintenance), Vertical, and Region - Global Forecast to 2022", ... 30.37 Billion in 2016 and is projected to reach ... 15.4% between 2017 and 2022. The base year considered ...
(Date:3/24/2017)... MILAN , March 24, 2017 The Controller ... Deputy Controller Mr. Abdulla Algeen have received the prestigious international ... Continue Reading ... ... small picture) and Deputy Controller Abdulla Algeen (small picture on the right) ...
(Date:3/23/2017)... 2017 The report "Gesture Recognition and Touchless Sensing Market ... - Global Forecast to 2022", published by MarketsandMarkets, the market is expected to ... between 2017 and 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):