Synthesis and Characterization of Amorphous Selenium, Cadmium and Silver Selenide Thin Films on Polyamide-6
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussions
3.1. XRD Analysis
3.2. AFM Analysis
3.3. ATR-FTIR Analysis
3.4. UV–Vis Analysis
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sample | Phase | 2θ, ° | Dc, nm | δ × 1015, m−2 | ε × 10−3 |
---|---|---|---|---|---|
PA 6 | PA6 | 23.5 | 16 | 3.70 | 2.11 |
a-Se/PA 6 | PA6 | 23.7 | 17 | 3.33 | 2.00 |
a-Se | – | – | – | – | |
Cd-Se/PA 6 | PA6 | 23.5 | 17 | 3.38 | 2.01 |
Se8 | 33.5 | 33 | 0.89 | 1.04 | |
CdSe | 42.7 | 40 | 0.63 | 0.87 | |
Ag-Se/PA 6 | PA6 | 23.6 | 17 | 3.56 | 2.06 |
Se8 | 31.8 | 31 | 0.91 | 1.07 | |
Ag2Se | 33.8 | 34 | 0.85 | 0.98 | |
Ag | 43.4 | 34 | 0.89 | 1.02 | |
Ag-Cd-Se/PA 6 | PA6 | 23.7 | 17 | 3.58 | 2.08 |
Se8 | 31.8 | 30 | 1.10 | 1.15 | |
CdSe | 48.7 | 37 | 0.74 | 0.94 | |
Ag2Se | 33.6 | 35 | 0.84 | 1.00 | |
Ag | 43.5 | 34 | 0.88 | 1.03 |
Phase or Ion | G, kJ/mol | BDE, kJ/mol | KSP, (mol/dm3)n * | S, mol/dm3 |
---|---|---|---|---|
a-Se | 6.00 ± 2.2 | - | - | 2.2 × 10−8 |
cr-Se | 0.00 | 332.6 (Se-Se) | - | 1.5 × 10−9 |
Ag+ | 77.11 | - | - | - |
Cd2+ | −77.16 | - | - | - |
CdSe | −141.60 | 127.6 ± 25.1 | 1.0 × 10−33 | 3.16 × 10−17 |
Ag2Se | −46.90 | 210.0 ± 14.6 | 3.1 × 10−65 | 3.14 × 10−22 |
Composite | Ra (nm) | RMS (nm) | Rt (nm) |
---|---|---|---|
PA 6 | 10.78 | 13.73 | 73.82 |
a-Se/PA 6 | 27.61 | 35.66 | 145.30 |
Cd-Se/PA 6 | 9.82 | 12.17 | 61.81 |
Ag-Se/PA 6 | 7.93 | 10.17 | 41.32 |
Ag-Cd-Se/PA 6 | 8.36 | 11.55 | 43.10 |
Band Location, cm−1 | Assignment | ||||
---|---|---|---|---|---|
PA6 | a-Se/PA6 | Cd-Se/PA6 | Ag-Se/PA6 | Ag-Cd-Se/PA6 | |
687 | 687 | 687 | 687 | 687 | C–C bending |
730 | 730 | 729 | 730 | 729 | CH2 waging |
834 | 835 | 833 | 833 | 833 | CO–NH in plane |
– | – | 877 | 877 | 876 | CdSe or/and Ag2Se |
929 | 929 | 930 | 930 | 930 | CO–NH in plane |
960 | 959 | 961 | 960 | 960 | CO–NH in plane (α crystalline) |
– | 974 | 976 | 975 | 975 | |
1023 | 1023 | 1025 | 1024 | 1024 | trans C–C backbone conformation |
1031 | 1031 | 1031 | 1032 | 1031 | CO–NH in plane (α crystalline) |
1124 | 1112 | 1112 | 1108 | 1094 | C–C stretching (sym) |
1169 | 1165 | 1166 | 1166 | 1165 | N–C–O groups/CH2 twisting |
1200 | 1200 | 1200 | 1200 | 1201 | C–CH bending (sym) CH2 twisting |
1238 | 1238 | 1236 | 1237 | 1235 | |
1264 | 1264 | 1261 | 1263 | 1263 | C–N stretching (amide III) |
1365 | 1371 | 1376 | 1377 | 1377 | CH2 twisting |
– | 1390 | 1392 | 1392 | 1391 | C–C stretching (sym) |
1417 | 1417 | 1417 | 1416 | 1415 | CH2 scissoring next to >C=O group |
1463 | 1459 | 1460 | 1459 | 1459 | CH2 scissoring |
1476 | 1475 | 1476 | 1475 | 1475 | CH2 scissoring next to N–H group |
1535 | 1534 | 1536 | 1536 | 1535 | C–N stretching and N–H bending of hydrogen-bonded N–H groups (amide II) |
1633 | 1633 | 1633 | 1633 | 1632 | C=O stretching (amide I) |
Composite | λg, nm | Eg, eV | EU, eV | σ | Ee-p, eV | χ |
---|---|---|---|---|---|---|
PA 6 | 278 | 4.46± 0.02 | 1.31 | 0.020 | 33.33 | 1.20 |
a-Se/PA 6 | 556 | 2.23± 0.02 | 0.95 | 0.027 | 24.69 | 0.60 |
Cd-Se/PA 6 | 605 | 2.05± 0.02 | 0.39 | 0.066 | 10.10 | 0.55 |
Ag-Se/PA 6 | 625 | 1.98± 0.02 | 0.55 | 0.047 | 14.18 | 0.53 |
Ag-Cd-Se/PA 6 | 756 | 1.64± 0.02 | 0.69 | 0.037 | 18.02 | 0.44 |
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Skuodaitė, E.; Krylova, V. Synthesis and Characterization of Amorphous Selenium, Cadmium and Silver Selenide Thin Films on Polyamide-6. Coatings 2023, 13, 1661. https://doi.org/10.3390/coatings13101661
Skuodaitė E, Krylova V. Synthesis and Characterization of Amorphous Selenium, Cadmium and Silver Selenide Thin Films on Polyamide-6. Coatings. 2023; 13(10):1661. https://doi.org/10.3390/coatings13101661
Chicago/Turabian StyleSkuodaitė, Emilija, and Valentina Krylova. 2023. "Synthesis and Characterization of Amorphous Selenium, Cadmium and Silver Selenide Thin Films on Polyamide-6" Coatings 13, no. 10: 1661. https://doi.org/10.3390/coatings13101661
APA StyleSkuodaitė, E., & Krylova, V. (2023). Synthesis and Characterization of Amorphous Selenium, Cadmium and Silver Selenide Thin Films on Polyamide-6. Coatings, 13(10), 1661. https://doi.org/10.3390/coatings13101661