Category Archive: Research Highlights

Jan 17 2015

UNM Pioneers Antimony Based Solar Cells

QESST researchers at the University of New Mexico are capitalizing on over two decades of experience at the UNM Center for High Tech Materials (CHTM) in antimonide based narrow gap compound semiconductor devices to advance solar technologies. The epitaxial laboratory at CHTM has four molecular beam epitaxy reactors dedicated to the technology, including a fully …

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Permanent link to this article: http://qesst.asu.edu/unm-pioneers-antimony-based-solar-cells

Jan 16 2015

Quantum-Engineering for Pushing Tandem Solar Cells Conversion Efficiencies toward 50%

Tandem devices based on III-V semiconductors have shown excellent promise for boosting solar cell conversion efficiencies. In particular, the use of a bottom subcell made with dilute nitrogen alloys of these semiconductors in a 3-cells series-connected tandem configuration already has shown practical conversion efficiencies in the range of 44%. Nevertheless, thus far access to higher …

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Permanent link to this article: http://qesst.asu.edu/quantum-engineering-for-pushing-tandem-solar-cells-conversion-efficiencies-toward-50

Jan 16 2015

QESST researchers grow novel InGaN alloys

A collaboration between QESST researchers at Georgia Tech and Arizona State University has developed and demonstrated high quality InGaN thin films with high In compositions. These films show high optical properties that result from full-strain relaxation and uniform chemical composition profiles, in a range that was previously thought not possible. Thick InGaN films grown on …

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Permanent link to this article: http://qesst.asu.edu/qesst-researchers-grow-novel-ingan-alloys

QESST Partners Arizona State University California Institute of Technology University of Delaware Massachusetts Institute of Technology The University of New Mexico Georgia Tech University of Houston Imperial College - London The University of Tokyo The University of New South Wales The University of Arizona