Fungi-derived xylindein: effect of purity on optical and electronic properties
| Autor: | Oksana Ostroverkhova, Jonathan Van Schenck, Sara C. Robinson, Ray C. Van Court, Taylor D. Krueger, Chong Fang, Gregory Giesbers, Jeffrey T. Morré |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Photoluminescence Analytical chemistry 02 engineering and technology 010402 general chemistry medicine.disease_cause 01 natural sciences chemistry.chemical_compound Pigment medicine General Materials Science Absorption (electromagnetic radiation) Range (particle radiation) Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences chemistry Mechanics of Materials visual_art visual_art.visual_art_medium Charge carrier 0210 nano-technology Ultraviolet Order of magnitude Xylindein |
| Zdroj: | MRS Advances. 4:1769-1777 |
| ISSN: | 2059-8521 |
| Popis: | We present a study of optical and electronic properties of solutions and films based on the fungi-derived pigment xylindein, extracted from decaying wood and processed without and with a simple purification step (“ethanol wash”). The “post-wash” xylindein solutions exhibited considerably lower absorption in the ultraviolet spectral range and dramatically reduced photoluminescence below 600 nm, due to removal of contaminants most likely to be fungal secondary metabolites. The “post-wash” xylindein-based films were characterized by two orders of magnitude higher charge carrier mobilities as compared to “pre-wash” samples. This underlines the importance of minimizing contaminants that disrupt the conductive xylindein network in xylindein-based electronic devices. |
| Databáze: | OpenAIRE |
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