Study of the physical properties of Bi doped CdTe thin films deposited by close space vapour transport
Creators
- 1. Escuela Superior de Fisica y Matematicas, Instituto Politecnico Nacional, 07738 Mexico, D. F. (Mexico)
- 2. Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada, Instituto Politecnico Nacional, 11500 Mexico, D. F. (Mexico)
- 3. Departamento de Fisica de Materiales, Universidad Autonoma de Madrid, 28049 Madrid (Spain)
Description
Bi doped cadmium telluride (CdTe:Bi) thin films were grown on glass-substrates by the close space vapour transport method. CdTe:Bi crystals grown by the vertical Bridgman method, varying the nominal Bi concentration in the range between 1 x 1017 and 8 x 1018 cm-3, were used in powder form for CdTe:Bi thin film deposition. Dark conductivity and photoconductivity measurements in the 90-300 K temperature range and determination by photoacoustic spectroscopy of the optical-absorption coefficient of the films in the 1.0 to 2.4 eV spectral region were carried out. The influence of Bi doping levels upon the intergrain barrier height and other associated grain boundary parameters of the polycrystalline CdTe:Bi thin films were determined from electrical, optical and morphological characterization
Availability note (English)
Available from http://dx.doi.org/10.1016/j.tsf.2007.06.151Additional details
Identifiers
- DOI
- 10.1016/j.tsf.2007.06.151;
- PII
- S0040-6090(07)01087-5;
Publishing Information
- Journal Title
- Thin Solid Films
- Journal Volume
- 516
- Journal Issue
- 12
- Journal Page Range
- p. 3818-3823
- ISSN
- 0040-6090
- CODEN
- THSFAP
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39071187
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION; BISMUTH COMPOUNDS; BRIDGMAN METHOD; CADMIUM TELLURIDES; DEPOSITION; DOPED MATERIALS; EV RANGE 01-10; GLASS; GRAIN BOUNDARIES; PHOTOACOUSTIC SPECTROSCOPY; PHOTOCONDUCTIVITY; POLYCRYSTALS; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; THIN FILMS
- Descriptors DEC
- CADMIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL GROWTH METHODS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ENERGY RANGE; EV RANGE; FILMS; MATERIALS; MICROSTRUCTURE; PHYSICAL PROPERTIES; SORPTION; SPECTROSCOPY; TELLURIDES; TELLURIUM COMPOUNDS; TEMPERATURE RANGE
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.