Electronic structure of Si(111)-bound alkyl monolayers: Theory and experiment

Lior Segev, Adi Salomon, Amir Natan, David Cahen, Leeor Kronik, Fabrice Amy, Calvin K. Chan, and Antoine Kahn
Phys. Rev. B 74, 165323 – Published 23 October 2006


We elucidate the electronic structure of both filled and empty states of ordered alkyl chains bound to the Si(111) surface by combining direct and inverse photoemission spectroscopy with first principles calculations based on density functional theory. We identify both filled and empty interface-induced gap states, distinguish between those and states extending throughout the monolayer, and discuss the importance of these findings for interpreting transport experiments through such monolayers.

    • Received 25 April 2006


    ©2006 American Physical Society

    Authors & Affiliations

    Lior Segev, Adi Salomon, Amir Natan, David Cahen, and Leeor Kronik*

    • Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel

    Fabrice Amy, Calvin K. Chan, and Antoine Kahn

    • Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA

    • *Corresponding author. Email address: leeor.kronik@weizmann.ac.il

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    Vol. 74, Iss. 16 — 15 October 2006

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