Transmission electron microscope study of the topotactic reaction of (0 0 1), (0 1 1) and (1 1 1) Ag films and Te

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Abstract

The formation, structure and morphology of silver telluride was investigated in the reaction of (0 0 1), (0 1 1) and (1 1 1) single crystalline Ag films with vacuum deposited Te. Silver films 30-40 nm in thickness were deposited by thermal evaporation onto water- and chlorine-treated NaCl. Onto this silver 1-40 nm of tellurium were deposited at 100 and 200 °C. The Ag-Te reaction occurred during Te deposition. Accordingly, formation of the compound phase was investigated from the nucleation stage through complete tellurization on either side of the polymorphic phase transformation temperature (Tc = 150 °C). Transmission electron microscope and selected area electron diffraction showed that monoclinic silver telluride (Ag2Te) of different morphology and texture was always formed. The orientation of silver and monoclinic phase upon differently oriented monocrystalline Ag films and at deposition temperatures around Tc is discussed.

Original languageEnglish
Pages (from-to)261-267
Number of pages7
JournalThin Solid Films
Volume440
Issue number1-2
DOIs
Publication statusPublished - Sep 1 2003

Fingerprint

Silver
Electron microscopes
electron microscopes
silver
tellurides
Tellurium
Thermal evaporation
Chlorine
tellurium
Electron diffraction
chlorine
phase transformations
Nucleation
textures
electron diffraction
Textures
Phase transitions
evaporation
nucleation
Vacuum

Keywords

  • Phase transitions
  • Silver telluride
  • Topotactic reaction
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

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title = "Transmission electron microscope study of the topotactic reaction of (0 0 1), (0 1 1) and (1 1 1) Ag films and Te",
abstract = "The formation, structure and morphology of silver telluride was investigated in the reaction of (0 0 1), (0 1 1) and (1 1 1) single crystalline Ag films with vacuum deposited Te. Silver films 30-40 nm in thickness were deposited by thermal evaporation onto water- and chlorine-treated NaCl. Onto this silver 1-40 nm of tellurium were deposited at 100 and 200 °C. The Ag-Te reaction occurred during Te deposition. Accordingly, formation of the compound phase was investigated from the nucleation stage through complete tellurization on either side of the polymorphic phase transformation temperature (Tc = 150 °C). Transmission electron microscope and selected area electron diffraction showed that monoclinic silver telluride (Ag2Te) of different morphology and texture was always formed. The orientation of silver and monoclinic phase upon differently oriented monocrystalline Ag films and at deposition temperatures around Tc is discussed.",
keywords = "Phase transitions, Silver telluride, Topotactic reaction, Transmission electron microscopy",
author = "G. S{\'a}fr{\'a}n and O. Geszti and G. Radn{\'o}czi",
year = "2003",
month = "9",
day = "1",
doi = "10.1016/S0040-6090(03)00673-4",
language = "English",
volume = "440",
pages = "261--267",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
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TY - JOUR

T1 - Transmission electron microscope study of the topotactic reaction of (0 0 1), (0 1 1) and (1 1 1) Ag films and Te

AU - Sáfrán, G.

AU - Geszti, O.

AU - Radnóczi, G.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - The formation, structure and morphology of silver telluride was investigated in the reaction of (0 0 1), (0 1 1) and (1 1 1) single crystalline Ag films with vacuum deposited Te. Silver films 30-40 nm in thickness were deposited by thermal evaporation onto water- and chlorine-treated NaCl. Onto this silver 1-40 nm of tellurium were deposited at 100 and 200 °C. The Ag-Te reaction occurred during Te deposition. Accordingly, formation of the compound phase was investigated from the nucleation stage through complete tellurization on either side of the polymorphic phase transformation temperature (Tc = 150 °C). Transmission electron microscope and selected area electron diffraction showed that monoclinic silver telluride (Ag2Te) of different morphology and texture was always formed. The orientation of silver and monoclinic phase upon differently oriented monocrystalline Ag films and at deposition temperatures around Tc is discussed.

AB - The formation, structure and morphology of silver telluride was investigated in the reaction of (0 0 1), (0 1 1) and (1 1 1) single crystalline Ag films with vacuum deposited Te. Silver films 30-40 nm in thickness were deposited by thermal evaporation onto water- and chlorine-treated NaCl. Onto this silver 1-40 nm of tellurium were deposited at 100 and 200 °C. The Ag-Te reaction occurred during Te deposition. Accordingly, formation of the compound phase was investigated from the nucleation stage through complete tellurization on either side of the polymorphic phase transformation temperature (Tc = 150 °C). Transmission electron microscope and selected area electron diffraction showed that monoclinic silver telluride (Ag2Te) of different morphology and texture was always formed. The orientation of silver and monoclinic phase upon differently oriented monocrystalline Ag films and at deposition temperatures around Tc is discussed.

KW - Phase transitions

KW - Silver telluride

KW - Topotactic reaction

KW - Transmission electron microscopy

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U2 - 10.1016/S0040-6090(03)00673-4

DO - 10.1016/S0040-6090(03)00673-4

M3 - Article

AN - SCOPUS:0042121485

VL - 440

SP - 261

EP - 267

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

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