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Functional Electronic Materials

Welcome to Functional Electronic Materials

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In the Division of Functional Electronic Materials, we conduct scientific research on electronic, magnetic and photonic semiconductor materials and nanostructures. The materials systems currently under study include novel spintronic materials, advanced electronic and photonic materials based on wide bandgap semiconductors and highly mismatched semiconductors, and semiconductor nanostructures.

The research is carried out mostly through a close collaboration with many groups worldwide. Our aim is to obtain a better understanding of fundamental physical properties and a good control of materials properties, and to fully explore functionality of the studied materials for applications in future generation micro- and nano-electronics and photonics as well as in potential multifunctional devices and systems.

Please find a summary of our recent work in the 2010 activity report.

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Publication highlights


Strong room-temperature optical and spin polarization in InAs/GaAs quantum dot structures

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the highly anticipated capability as highly polarized spin/light sources and efficient spin detectors finally demonstrated

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Jan Beyer , Irina A. Buyanova , S. Suraprapapich , C. W. Tu and Weimin M. Chen
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Published in Applied Physics Letters 98, 203110 (2011)

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Anomalous effect of hydrogen treatment in a semiconductor: activation of defects in GaNP

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Daniel Dagnelund , Xingjun J. Wang , C. W. Tu , A. Polimeni , M. Capizzi , Weimin M. Chen and Irina A. Buyanova


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Published in Applied Physics Letters 98, 141920 (2011)

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Quantifying efficiency of room-temperature spin injection and spin loss across a GaNAs/GaAs interface

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The first case for a semiconductor heterointerface

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Yuttapoom Puttisong , Xingjun J. Wang , Irina A. Buyanova , C. W. Tu , L. Geelhaar , H. Riechert and Weimin M. Chen


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Published in Applied Physics Letters 98, 012112 (2011)

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Handbook of Spintronic Semiconductors

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edited by Weimin M Chen and Irina A Buyanova

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Published in Spring 2010 by Pan Stanford Publishing. 400 pages (approx.) ISBN 978-981-4267-36-6

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Room-temperature defect-engineered spin filter based on a non-magnetic semiconductor

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Xingjun J. Wang, Irina A. Buyanova, F. Zhao, D. Lagarde, A. Balocchi, X. Marie, C. W. Tu, J. C. Harmand and Weimin M. Chen

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Published in Nature Materials. LiU E-Press offers a free parallel publication.

En översikt på svenska finns i LiUs nyhets-arkiv.


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Oxygen and zinc vacancies in as-grown ZnO single crystals

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Xingjun J. Wang, Leonid S. Vlasenko, S. J. Pearton, Weimin M. Chen and Irina A. Buyanova

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This article has been selected as one of 31 articles in all fields (and one of 6 in the category STRUCTURE AND PROPERTIES OF MATTER) in the Journal of Physics D Highlights of 2009 collection.

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Spin injection in lateral InAs quantum dot structures by optical orientation spectroscopy

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Jan Beyer, Irina A. Buyanova, S. Suraprapapich, C. W. Tu and Weimin M. Chen

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This article has been published in Nanotechnology. LiU E-Press offers a free parallel published version. It was selected as an invited journal highlights article on nanotechweb.org.

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