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Formation reactions of PbTe thin film deposition by close-spaced vapor transport (CSVT) technique
Kertoatmodjo S.a, Nugrahaa, Guastavino F.b
a Engineering Physics Department, Institute of Technology Bandung, Indonesia
b Université Montpellier II, France
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]A study of the deposition reactions of PbTe thin films on soda lime glass substrate by close-spaced vapor transport (CSVT), using PbTe crystal, pellets or powder as source material and iodine as transport reagent, has been conducted. Based on the study of the thermodynamic properties of PbTe, of iodide compounds involved in the process, like PbI, PbI2 and PbI4, and the experimental conditions, different reversible reactions have been considered to explain the final composition of the thin films obtained. The mole fraction yield of solid compounds deposited (PbTe, PbI2, Pb, Te, I2) can be deduced at equilibrium from these reactions as a maximum value, taking into account the experimental thermodynamics parameters. On the experimental side, the thin films grown in various operational conditions have been characterized by X-ray diffraction, EDS and SEM. For optimal operational conditions: source temperature Tso (540°C), substrate temperature Tsu (490°C), distance between source and substrate l (0.1 cm) and time of deposition t (10 minutes) we have obtained PbTe thin films free of iodide. For experimental conditions very different from the optimal conditions, especially at lower substrate temperatures, the films are dominated by the presence of PbI2. © 1998 Elsevier Science S.A. All rights reserved.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Closed space vapor transport (CSVT) techniques,Formation reactions[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Close-spaced vapor transport,Formation reactions,PbTe thin film deposition[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/S0040-6090(97)01199-1[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]