Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/2907
Title: | Temperature dependent spectroscopic study of the electronic structure of phosphorus in n-type CVD diamond films | Authors: | HAENEN, Ken MEYKENS, Kristien NESLADEK, Milos KNUYT, Gilbert STALS, Lambert Teraji, T Koizumi, S Gheeraert, E |
Issue Date: | 2000 | Publisher: | ELSEVIER SCIENCE SA | Source: | DIAMOND AND RELATED MATERIALS, 9(3-6). p. 952-955 | Abstract: | In this work we used the quasi-steady-state photocurrent method and photothermal ionisation spectroscopy (PTIS) to study the electronic structure of the P-related level in n-type phosphorus doped CVD diamond. Previously, we reported the existence of two optically active defect levels, labelled X-P1 and X-P2, in the bandgap of these P-doped layers. X-P2 appeared to be only present in films showing high resistivity. Here we present a detailed PTIS and photocurrent study of the photoionisation cross-section, from liquid helium up to room temperature. At low temperatures, samples containing only the X-P1 defect show a phonon-induced oscillatory photoconductivity, giving information about the electronic structure of this defect. Additionally, with PTIS a sharp maximum was detected around 565 meV, originating from a thermal promotion of charge carriers from an excited state of the phosphorus-related level into the conduction band. We also discuss different models for the optical ionisation cross-section of the P-related level (e.g. shallow level, deep level). (C) 2000 Elsevier Science S.A. All rights reserved. | Notes: | Limburgs Univ Ctr, Div Mat Phys, Inst Mat Res, B-3590 Diepenbeek, Belgium. Natl Inst Res Inorgan Mat, NIRIM, Res Ctr Adv Mat, Tsukuba, Ibaraki 3050044, Japan. CNRS, Etud Proprietes Elect Solides Lab, F-38042 Grenoble, France.Haenen, K, Limburgs Univ Ctr, Div Mat Phys, Inst Mat Res, Univ Campus,Wetenschapspk 1, B-3590 Diepenbeek, Belgium. | Keywords: | n-type doping; phosphorus; photoconductivity; spectroscopy | Document URI: | http://hdl.handle.net/1942/2907 | DOI: | 10.1016/S0925-9635(99)00202-2 | ISI #: | 000087382400145 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2001 |
Appears in Collections: | Research publications |
Show full item record
SCOPUSTM
Citations
17
checked on Sep 2, 2020
WEB OF SCIENCETM
Citations
18
checked on Oct 14, 2024
Page view(s)
62
checked on Sep 7, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.