Structural Change in Ag2Te Buffer Layer During Two-Step Closed Space Sublimation of AgGaTe2

Y. Yu; M. Kobayashi

doi:10.1007/s11664-020-08465-4

Structural Change in Ag₂Te Buffer Layer During Two-Step Closed Space Sublimation of AgGaTe₂

Y. Yu^*, M. Kobayashi

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An AgGaTe₂ layer was prepared using an Ag₂Te buffer layer. Ag₂Te layers were deposited by the radio-frequency sputtering method. We investigate the variations in the Ag₂Te buffer layer surface morphology and composition that take place during annealing. Ag₂Te films were annealed in a tube furnace. The composition and surface morphology of the Ag₂Te layer were found to vary depending on the thermal annealing temperature and duration. It was confirmed that a dewetting process in the Ag₂Te layer occurred with annealing between 200°C and 500°C, and O₂ and Mo reacted at 600°C and then became MoO₃ compounds. Mo and Te were completely desorbed from the surface at 700°C. This confirmed that the surface morphology of the Ag₂Te layer was controlled by the annealing temperature and duration.

Original language	English
Pages (from-to)	7541-7546
Number of pages	6
Journal	Journal of Electronic Materials
Volume	49
Issue number	12
DOIs	https://doi.org/10.1007/s11664-020-08465-4
Publication status	Published - 2020 Dec

Keywords

AgTe
annealing
dewetting process
solar cell
surface morphology

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1007/s11664-020-08465-4

Cite this

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title = "Structural Change in Ag2Te Buffer Layer During Two-Step Closed Space Sublimation of AgGaTe2",

abstract = "An AgGaTe2 layer was prepared using an Ag2Te buffer layer. Ag2Te layers were deposited by the radio-frequency sputtering method. We investigate the variations in the Ag2Te buffer layer surface morphology and composition that take place during annealing. Ag2Te films were annealed in a tube furnace. The composition and surface morphology of the Ag2Te layer were found to vary depending on the thermal annealing temperature and duration. It was confirmed that a dewetting process in the Ag2Te layer occurred with annealing between 200°C and 500°C, and O2 and Mo reacted at 600°C and then became MoO3 compounds. Mo and Te were completely desorbed from the surface at 700°C. This confirmed that the surface morphology of the Ag2Te layer was controlled by the annealing temperature and duration.",

keywords = "AgTe, annealing, dewetting process, solar cell, surface morphology",

author = "Y. Yu and M. Kobayashi",

note = "Funding Information: This work was supported in part by Waseda University Research Initiatives through the Waseda University Grant for Special Research Projects. We thank Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: {\textcopyright} 2020, The Minerals, Metals & Materials Society.",

year = "2020",

month = dec,

doi = "10.1007/s11664-020-08465-4",

language = "English",

volume = "49",

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AU - Yu, Y.

AU - Kobayashi, M.

N1 - Funding Information: This work was supported in part by Waseda University Research Initiatives through the Waseda University Grant for Special Research Projects. We thank Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. Publisher Copyright: © 2020, The Minerals, Metals & Materials Society.

PY - 2020/12

Y1 - 2020/12

N2 - An AgGaTe2 layer was prepared using an Ag2Te buffer layer. Ag2Te layers were deposited by the radio-frequency sputtering method. We investigate the variations in the Ag2Te buffer layer surface morphology and composition that take place during annealing. Ag2Te films were annealed in a tube furnace. The composition and surface morphology of the Ag2Te layer were found to vary depending on the thermal annealing temperature and duration. It was confirmed that a dewetting process in the Ag2Te layer occurred with annealing between 200°C and 500°C, and O2 and Mo reacted at 600°C and then became MoO3 compounds. Mo and Te were completely desorbed from the surface at 700°C. This confirmed that the surface morphology of the Ag2Te layer was controlled by the annealing temperature and duration.

AB - An AgGaTe2 layer was prepared using an Ag2Te buffer layer. Ag2Te layers were deposited by the radio-frequency sputtering method. We investigate the variations in the Ag2Te buffer layer surface morphology and composition that take place during annealing. Ag2Te films were annealed in a tube furnace. The composition and surface morphology of the Ag2Te layer were found to vary depending on the thermal annealing temperature and duration. It was confirmed that a dewetting process in the Ag2Te layer occurred with annealing between 200°C and 500°C, and O2 and Mo reacted at 600°C and then became MoO3 compounds. Mo and Te were completely desorbed from the surface at 700°C. This confirmed that the surface morphology of the Ag2Te layer was controlled by the annealing temperature and duration.

KW - AgTe

KW - annealing

KW - dewetting process

KW - solar cell

KW - surface morphology

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