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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
RSC
2020
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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. |
format | Online Article Text |
id | pubmed-9417642 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | RSC |
record_format | MEDLINE/PubMed |
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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