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Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films

We implemented gas-phase (argon plasma) and wet-chemical (HNO(3)) surface treatments on close space sublimated (CSS) Cadmium Telluride (CdTe) thin films exhibiting morphologies of (i) vertically aligned walls on copper (Cu) and stainless steel (SS) substrates, (ii) valley–hills on aluminum (Al) subs...

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Autores principales: Ramanathan, Kulandai Velu, Shankar, Balakrishnan, Nair, Shantikumar V., Shanmugam, Mariyappan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417642/
https://www.ncbi.nlm.nih.gov/pubmed/36132887
http://dx.doi.org/10.1039/d0na00532k
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author Ramanathan, Kulandai Velu
Shankar, Balakrishnan
Nair, Shantikumar V.
Shanmugam, Mariyappan
author_facet Ramanathan, Kulandai Velu
Shankar, Balakrishnan
Nair, Shantikumar V.
Shanmugam, Mariyappan
author_sort Ramanathan, Kulandai Velu
collection PubMed
description We implemented gas-phase (argon plasma) and wet-chemical (HNO(3)) surface treatments on close space sublimated (CSS) Cadmium Telluride (CdTe) thin films exhibiting morphologies of (i) vertically aligned walls on copper (Cu) and stainless steel (SS) substrates, (ii) valley–hills on aluminum (Al) substrates and (iii) micro-granules on nickel (Ni). As all the growth conditions (temperature, pressure, duration and source/substrate distance) were exactly the same in the CSS process to coat CdTe films, it is asserted that the various microstructures were raised only on Cu, Al, Ni and SS substrates. Plasma and HNO(3) surface treatments on metal substrates did not affect the CdTe morphologies in terms of specific structures but it was observed that structural, optical and electrical charge transport characteristics were highly tunable by the two surface treatments. Thus, substrate driven morphological evaluation followed by surface treatments was enabled. The present study demonstrated various microstructures of CdTe films on metallic thin foil substrates to attempt the establishment of flexible opto-electronics based on CdTe.
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spelling pubmed-94176422022-09-20 Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films Ramanathan, Kulandai Velu Shankar, Balakrishnan Nair, Shantikumar V. Shanmugam, Mariyappan Nanoscale Adv Chemistry We implemented gas-phase (argon plasma) and wet-chemical (HNO(3)) surface treatments on close space sublimated (CSS) Cadmium Telluride (CdTe) thin films exhibiting morphologies of (i) vertically aligned walls on copper (Cu) and stainless steel (SS) substrates, (ii) valley–hills on aluminum (Al) substrates and (iii) micro-granules on nickel (Ni). As all the growth conditions (temperature, pressure, duration and source/substrate distance) were exactly the same in the CSS process to coat CdTe films, it is asserted that the various microstructures were raised only on Cu, Al, Ni and SS substrates. Plasma and HNO(3) surface treatments on metal substrates did not affect the CdTe morphologies in terms of specific structures but it was observed that structural, optical and electrical charge transport characteristics were highly tunable by the two surface treatments. Thus, substrate driven morphological evaluation followed by surface treatments was enabled. The present study demonstrated various microstructures of CdTe films on metallic thin foil substrates to attempt the establishment of flexible opto-electronics based on CdTe. RSC 2020-08-17 /pmc/articles/PMC9417642/ /pubmed/36132887 http://dx.doi.org/10.1039/d0na00532k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Ramanathan, Kulandai Velu
Shankar, Balakrishnan
Nair, Shantikumar V.
Shanmugam, Mariyappan
Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title_full Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title_fullStr Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title_full_unstemmed Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title_short Effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated CdTe films
title_sort effects of gas-phase and wet-chemical surface treatments on substrates induced vertical, valley–hill & micro-granular growth morphologies of close space sublimated cdte films
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9417642/
https://www.ncbi.nlm.nih.gov/pubmed/36132887
http://dx.doi.org/10.1039/d0na00532k
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