Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-27T19:04:51.573Z Has data issue: false hasContentIssue false
  • English
  • Français

The Incorporation and Complex Formation of Ag Acceptors in CdTe

Published online by Cambridge University Press:  10 February 2011

H. Wolf ,
T. Filz ,
J. Hamann ,
V. Ostheimer ,
S. Lany ,
Th. Wichert ,
M. Deicher  and
A. Burchard
H. Wolf
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
T. Filz
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
J. Hamann
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
V. Ostheimer
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
S. Lany
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
Th. Wichert
Affiliation:
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany
M. Deicher
Affiliation:
Fakultät für Physik, Universität Konstanz, D-78434 Konstanz, Germany; ISOLDE Collaboration, PPE ISOLDE, CERN, CH-1211 Geneve, Switzerland
A. Burchard
Affiliation:
Fakultät für Physik, Universität Konstanz, D-78434 Konstanz, Germany; ISOLDE Collaboration, PPE ISOLDE, CERN, CH-1211 Geneve, Switzerland
Get access

Abstract

Using the radioactive isotope 111Ag, the incorporation of Ag into CdTe is investigated by photoluminescence spectroscopy (PL) and the perturbed yy-angular correlation technique (PAC). PL is used to demonstrate the incorporation as a substitutional acceptor (AgCd) by monitoring the intensity of the donor-acceptor transition, corresponding to an acceptor level of EV + 108 meV, which decreases just with the half life of the radioactive decay of the 111Ag isotope. Since the isotope 111Ag also serves as a probe atom for PAC experiments, it is possible to confirm the incorporation of Ag atoms on lattice sites with cubic symmetry. Additionally, in CdTe a defect complex is detected, which is assigned to a AgCd-VTe pair. A second defect complex is observed in CdTe doped with In, which is assigned to an InCd-AgCd pair. By PAC experiments with the probe 111In that are performed in Ag doped CdTe, the formation of the InCd-AgCd pair is confirmed besides the well known formation of the InCd-VCd pair. The migration energy of the cation vacancy is estimated on the basis of an isothermal annealing sequence.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 510: Symposium D – Defect & Impurity Engineered Semiconductors & Devices II , January 1998 , 337
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Chamonal, J.P., Molva, E., Pautrat, J.L.; Solid State Comm. 43 (801) 1982 Google Scholar
2. Chamonal, J.P., Molva, E., Pautrat, J.L., Revoil, L.; J. Cryst. Growth 59 (297) 1982 Google Scholar
3. Monemar, B., Molva, E., Si Dang, Le; Phys. Rev. B 33 (1134) 1986 Google Scholar
4. Hamann, J., BlaB, D., Casimir, C. Filz, T., Ostheimer, V., Schmitz, C., Wolf, H., Wichert, Th., Burchard, A., Deicher, M., and Magerle, R.; Appl. Phys. Lett. 72 (554) 1998 Google Scholar
5. Wolf, H., Filz, T., Hamann, J., Jost, A., Ostheimer, V., and Wichert, Th. in Shallow Level Centers in Semiconductors, edited by Ammerlaan, C.A.J. and Pajot, B. (World Scientific, Singapore, 1997) p. 123 Google Scholar
6. Kovalets, M.A., Kuchma, N.I., Nikonyuk, E.S., Chiokan, I.P., and Skvydka, M.N.; Fiz. Khim. Obrab. Mater. 3 (125) 1987 Google Scholar
7. Wichert, Th., Deicher, M., Grübel, G., Keller, G., Schulz, N., and Skudlik, H., Appl. Phys. A 48, 59 (1989)Google Scholar
8. Magerle, R.; Mat. Res. Sec. Symp. Proc. 442 (3) 1997 Google Scholar
9. Broser, I., Franke, K.H.; J. Phys. Chem. Solids 26 (1013) 1965 Google Scholar
10. Magerle, R., Burchard, A., Deicher, M., Kerle, T., Pfeiffer, W., Recknagel, E.; Phys. Rev. Lett. 75 (1594) 1995 Google Scholar
11. Molva, E., Chamonal, J.P., Pautrat, J.L.; Phys. Stat. Sol. (b) 109 (635) 1982 Google Scholar
12. Hamann, J., Burchard, A., Deicher, M., Filz, T., Ostheimer, V., Schmitz, C., Wolf, H., Wichert, Th., and ISOLDE Collaboration; submitted to Appl. Phys. Lett.Google Scholar
13. Wichert, Th., Krings, Th., and Wolf, H., Physica B 185, 297 (1993)Google Scholar
14. Reislöhner, U., Achtziger, N., RUb, M., Witthuhn, W.; J. Cryst. Growth 159 (372) 1996 Google Scholar