Navigation Links
Flexible silicon solar-cell fabrics may soon become possible
Date:12/6/2012

For the first time, a silicon-based optical fiber with solar-cell capabilities has been developed that has been shown to be scalable to many meters in length. The research opens the door to the possibility of weaving together solar-cell silicon wires to create flexible, curved, or twisted solar fabrics. The findings by an international team of chemists, physicists, and engineers, led by John Badding, a professor of chemistry at Penn State University, will be posted by the journal Advanced Materials in an early online edition on 6 December 2012 and will be published on a future date in the journal's print edition.

The team's new findings build on earlier work addressing the challenge of merging optical fibers with electronic chips -- silicon-based integrated circuits that serve as the building blocks for most semiconductor electronic devices such as solar cells, computers, and cell phones. Rather than merge a flat chip with a round optical fiber, the team found a way to build a new kind of optical fiber -- which is thinner than the width of a human hair -- with its own integrated electronic component, thereby bypassing the need to integrate fiber-optics with chips. To do this, they used high-pressure chemistry techniques to deposit semiconducting materials directly, layer by layer, into tiny holes in optical fibers.

Now, in their new research, the team members have used the same high-pressure chemistry techniques to make a fiber out of crystalline silicon semiconductor materials that can function as a solar cell -- a photovoltaic device that can generate electrical power by converting solar radiation into direct-current electricity. "Our goal is to extend high-performance electronic and solar-cell function to longer lengths and to more flexible forms. We already have made meters-long fibers but, in principle, our team's new method could be used to create bendable silicon solar-cell fibers of over 10 meters in length," Badding said. "Long, fiber-based solar cells give us the potential to do something we couldn't really do before: We can take the silicon fibers and weave them together into a fabric with a wide range of applications such as power generation, battery charging, chemical sensing, and biomedical devices."

Badding explained that one of the major limitations of portable electronics such as smart phones and iPads is short battery life. Solar-boosted batteries could help solve this problem. "A solar cell is usually made from a glass or plastic substrate onto which hydrogenated amorphous silicon has been grown," Badding explained. "Such a solar cell is created using an expensive piece of equipment called a PECVD reactor and the end result is something flat with little flexibility. But woven, fiber-based solar cells would be lightweight, flexible configurations that are portable, foldable, and even wearable." This material could then be connected to electronic devices to power them and charge their batteries. "The military especially is interested in designing wearable power sources for soldiers in the field," Badding added.

The team members believe that another advantage of flexibility in solar-cell materials is the possibility of collecting light energy at various angles. "A typical solar cell has only one flat surface," Badding said. "But a flexible, curved solar-cell fabric would not be as dependent upon where the light is coming from or where the sun is in the horizon and the time of day."

Pier J. A. Sazio of the University of Southampton in the United Kingdom and one of the team's leaders added, "Another intriguing property of these silicon-fiber devices is that as they are so compact, they can have a very fast response to visible laser light. In fact, we fabricated fiber-based photodetectors with a bandwidth of over 1.8 GHz."


'/>"/>
Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Related biology technology :

1. Penn researchers make flexible, low-voltage circuits using nanocrystals
2. A KAIST research team has developed a high performance flexible solid state battery
3. UCLA team develops highly efficient method for creating flexible, transparent electrodes
4. Flexible Sensors Offer Unprecedented View of Brain Activity During Epileptic Seizures
5. Fabrication on patterned silicon carbide produces bandgap to advance graphene electronics
6. Rice team boosts silicon-based batteries
7. Aviir Diagnostic Laboratories Secures $8 Million In Funding From Silicon Valley Bank
8. The Legends that Contributed to Silicon Valleys Eminence Assemble for Frost & Sullivans Growth, Innovation and Leadership 2012 Congress
9. Funding boost for silicon carbide super chip
10. Hark! Group demonstrates first heralded single photon source made from silicon
11. Clinovo Hosted the Fourth Silicon Valley BioTalks on June 6th, 2012
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Flexible silicon solar-cell fabrics may soon become possible
(Date:12/9/2016)... According to a new market research report "Oligonucleotide Synthesis Market ... (Research, PCR, Gene, DNA, NGS, Diagnostic, RNAI), End user (Academic, Pharmaceutical, ... is expected to reach USD 2.20 Billion by 2021 from USD ... forecast period. Continue Reading ... ...
(Date:12/8/2016)... ... 2016 , ... From wearable devices that can improve performance ... Thursday, December 15th a panel of entrepreneurs, innovators and a Philadelphia Eagles front ... Smart Talk session. Smart Talk will run from 8:30 – 10:30 a.m. at ...
(Date:12/8/2016)... ... December 08, 2016 , ... The ... — optogenetics — is key to exciting advances in the study and mapping ... light projected via free-space optics stimulates small, transparent organisms and excites neurons within ...
(Date:12/8/2016)... ... December 08, 2016 , ... KBioBox llc ... to client demand KbioBox developed a sophisticated “3 click” gene dditing off target ... from KBioBox’s new website, https://www.kbiobox.com/ and powered by the company’s ...
Breaking Biology Technology:
(Date:12/7/2016)... , Dec. 7, 2016   Veridium , ... the appointment of new CEO James Stickland ... with decades of experience, has served in senior ... where he specialized in expanding a pipeline of ... portfolios. He most recently served as managing director ...
(Date:12/5/2016)... , Dec. 5, 2016  The Office of ... published "Can CT Scans Enhance or Replace Medico ... potential of supporting or replacing forensic autopsies with ... scan. In response to recommendations made ... exploring using CT scans as a potential component ...
(Date:11/30/2016)... , Nov. 30, 2016  higi SH ... new partnership initiative targeting national brands, industry thought-leaders ... reward their respective audiences for taking steps to ... its inception in 2012, higi has built the ... impacting over 38 million people who have conducted ...
Breaking Biology News(10 mins):