Optical Absorption and Visible Photoluminescence from Thin Films of Silicon Phthalocyanine Derivatives
Abstract
:1. Introduction
2. Results and Discussion
2.1. Structure of SiPcL2 Derivatives
MPc | ν (CH) cm−1 | ν (C–C) cm−1 | ν (C–N) cm−1 | ν (C=O) cm−1 | ν (C–O) cm−1 | α-form cm−1 | β-form cm−1 |
---|---|---|---|---|---|---|---|
Compound A: pellet | 3068, 3056, 2934, 2806, 1116, 900, 732 | 1617, 685 | 1291, 1163 | 1663 | 1075 | - | 781, 734 |
Compound A: thin film | 3073, 3056, 2937, 2805, 1121, 908, 734 | 1613, 681 | 1288, 1164 | 1663 | 1078 | - | - |
Compound B: pellet | 3079, 3062, 2934, 2800, 1122, 912, 732 | 1606, 685 | 1291, 1163 | 1664 | 1075 | 720 | 781, 737 |
Compound B: thin film | 3071, 3058, 2937, 2801, 1118, 907, 723 | 1612, 684 | 1288, 1165 | 1662 | 1076 | - | - |
Compound C: pellet | 3079, 3056, 2934, 2800, 1116, 906, 731 | 1612, 679 | 1285, 1163 | 1664 | 1076 | 728 | 782, 735 |
Compound C: thin film | 3085, 3056, 2935, 2801, 1120, 1077, 908, 735 | 1611, 683 | 1289, 1165 | 1662 | 1077 | - | - |
SiPcCl2: pellet | 3087, 3059, 1116, 2937, 2801, 907, 718 | 1612, 684 | 1286, 1160 | - | 1073 | - | 781, 737 |
SiPcCl2: thin film | 3085, 3058, 1115, 2937, 2803, 908, 720 | 1612, 682 | 1289, 1165 | - | 1076 | - | - |
Sample | RMS roughness (nm) | Refractive index (n) | % Reflectance | Thickness (nm) | Cody Eg a (eV) |
---|---|---|---|---|---|
Compound A | 69.19 | 2.022 | 11.44 | 542 | 1.7, 2.1, 3.1 |
Compound B | 14.53 | 2.621 | 20.04 | 1319 | 1.6, 2.5 |
Compound C | 110.42 | 2.696 | 21.11 | 1562 | 1.6, 2.4 |
2.2. Optical Properties
2.3. Photoluminescence Measurements
3. Experimental Section
3.1. Synthesis
3.1.1. Starting Material and Chemicals
3.1.2. Synthesis of Compound A
3.1.2. Synthesis of Compound B
3.1.3. Synthesis of Compound C
3.2. Powder Characterization
3.3. Thin-Film Deposition
3.4. Thin-Film Characterization
4. Conclusions
Acknowledgments
Author Contributions
Conflict of Interests
References
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Gómez, A.R.; Sánchez-Hernández, C.M.; Fleitman-Levin, I.; Arenas-Alatorre, J.; Alonso-Huitrón, J.C.; Vergara, M.E.S. Optical Absorption and Visible Photoluminescence from Thin Films of Silicon Phthalocyanine Derivatives. Materials 2014, 7, 6585-6603. https://doi.org/10.3390/ma7096585
Gómez AR, Sánchez-Hernández CM, Fleitman-Levin I, Arenas-Alatorre J, Alonso-Huitrón JC, Vergara MES. Optical Absorption and Visible Photoluminescence from Thin Films of Silicon Phthalocyanine Derivatives. Materials. 2014; 7(9):6585-6603. https://doi.org/10.3390/ma7096585
Chicago/Turabian StyleGómez, Arturo Rodríguez, Carlos Moises Sánchez-Hernández, Ilán Fleitman-Levin, Jesús Arenas-Alatorre, Juan Carlos Alonso-Huitrón, and María Elena Sánchez Vergara. 2014. "Optical Absorption and Visible Photoluminescence from Thin Films of Silicon Phthalocyanine Derivatives" Materials 7, no. 9: 6585-6603. https://doi.org/10.3390/ma7096585