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Electrical conduction through a 2D InP-based photonic crystal - art. no. 63220J
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0001-6459-749X
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-5845-3032
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2006 (English)In: Tuning the Optic Response of Photonic Bandgap Structures III / [ed] Braun, PV; Weiss, SM, 2006, Vol. 6322, J3220-J3220 p.Conference paper, Published paper (Refereed)
Abstract [en]

This work investigates the current transport across two-dimensional PhCs dry etched into InP-based low-index-contrast vertical structures using Ar/Cl-2 chemically assisted ion beam etching. The electrical conduction through the PhC field is influenced by the surface potential at the hole sidewalls, which is modified by dry etching. The measured current-voltage (I-V) characteristics are linear before but show a current saturation at higher voltages. This behaviour is confirmed by simulations performed by ISE-TCAD software. We investigate the dependence of the conductance of the PhC area as a function of the geometry of the photonic crystal as well as the material parameters. By comparing the experimental and simulated conductance of the PhC, we deduce that the Fermi level is pinned at 0.1 eV below the conduction band edge. The method presented here can be used for evaluating etching processes and surface passivation methods. It is also applicable for other material systems and sheds new light on current driven PhC tuning.

Place, publisher, year, edition, pages
2006. Vol. 6322, J3220-J3220 p.
Series
PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE, ISSN 0277-786X ; 6322
Keyword [en]
photonic crystals, Fermi level pinning, Dry etching, CAIBE, InP, electrical conduction, tuning, surface potential
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-41965DOI: 10.1117/12.680017ISI: 000241987900013Scopus ID: 2-s2.0-33751040603ISBN: 978-081946401-9 (print)OAI: oai:DiVA.org:kth-41965DiVA: diva2:445683
Conference
Conference on Tuning the Optic Response of Photonic Bandgap Structures III. San Diego, CA. AUG 14, 2006
Note

QC 20111004

Available from: 2011-10-04 Created: 2011-10-04 Last updated: 2012-09-24Bibliographically approved

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Malm, Gunnar

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Berrier, AudreyMulot, MikaelMalm, GunnarÖstling, MikaelAnand, Srinivasan
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