Bandgap engineering for high-efficiency solar cell design

Public release date: 22-Jun-2012
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Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics

ZnSnP2, an absorber material for solar cells, transitions from an ordered to a disordered structure at high temperatures. Researchers from University College London and the University of Bath have proposed taking advantage of this structural change to design high-efficiency solar absorbers. The team used theoretical calculations to investigate the electronic structure of both phases, and predicted a significant difference in the bandgap between the ordered and fully disordered materials.

Experimental measurements of the bandgap of ZnSnP2 are consistent with predictions from partially disordered phases. In a paper accepted for publication in the American Institute of Physics' journal Applied Physics Letters, the researchers propose that a family of ZnSnP2 materials with different structural phases could provide a graded solar cell system that absorbs light across a wide swath of the spectrum.

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Title: "Bandgap engineering of ZnSnP2 for high-efficiency solar cells"

Journal: Applied Physics Letters

Authors: David O. Scanlon (1) and Aron Walsh (2)

(1) University College London, UK

(2) University of Bath, UK

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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.

Public release date: 22-Jun-2012
[ | E-mail | Share ]

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics

ZnSnP2, an absorber material for solar cells, transitions from an ordered to a disordered structure at high temperatures. Researchers from University College London and the University of Bath have proposed taking advantage of this structural change to design high-efficiency solar absorbers. The team used theoretical calculations to investigate the electronic structure of both phases, and predicted a significant difference in the bandgap between the ordered and fully disordered materials.

Experimental measurements of the bandgap of ZnSnP2 are consistent with predictions from partially disordered phases. In a paper accepted for publication in the American Institute of Physics' journal Applied Physics Letters, the researchers propose that a family of ZnSnP2 materials with different structural phases could provide a graded solar cell system that absorbs light across a wide swath of the spectrum.

###

Title: "Bandgap engineering of ZnSnP2 for high-efficiency solar cells"

Journal: Applied Physics Letters

Authors: David O. Scanlon (1) and Aron Walsh (2)

(1) University College London, UK

(2) University of Bath, UK

---

[ | E-mail | Share ]

?

AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.

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