Počet záznamů: 1

Surface states and photo-induced charge transfer on oxygen-terminated chemical vapor deposition diamond (vol 109, 063701, 2011)

  1. 1.
    0365348 - UJF-V 2013 RIV US eng J - Článek v odborném periodiku
    Deferme, W. - Macková, Anna - Haenen, K. - Nesladek, M.
    Surface states and photo-induced charge transfer on oxygen-terminated chemical vapor deposition diamond (vol 109, 063701, 2011).
    Journal of Applied Physics. Roč. 110, č. 2 (2011), 029902/1 ISSN 0021-8979
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: CIRCULATION * PHYSICS
    Kód oboru RIV: CA - Anorganická chemie
    Impakt faktor: 2.168, rok: 2011

    Time-of-Flight (ToF) experiments were carried out to study the electrical transport and charge trapping properties of oxidized freestanding single crystalline (100) CVD diamond crystals. It is shown that the diamond surface and properties of the electrical contacts are of extreme importance, influencing measured charge carrier mobility values. While sputtered Al contacts yield textbook ToF spectra and electron mobilities mu(e) exceeding 1860 cm(2)/Vs, thermally deposited contacts suffer from enhanced trapping. We propose a model in which the observed polarization effects can be explained by charge transfer to oxygen-related surface states, which interact with surface adsorbates, according to the well-known transfer-doping model
    Trvalý link: http://hdl.handle.net/11104/0200609